runtime: found bad pointer in Go heap when not using CGO and -race reveals nothing

[kalensk]

Go version

go version go1.22.5 linux/amd64

Output of go env in your module/workspace:

GO111MODULE=''
GOARCH='amd64'
GOBIN=''
GOCACHE='/home/user/.cache/go-build'
GOENV='/home/user/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/home/user/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/user/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.5'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/home/user/workspace/product/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1282480932=/tmp/go-build -gno-record-gcc-switches'

What did you do?

Unfortunately, the program is closed source and not able to find a simplified enough reproduction to post.

What did you see happen?

My go program does not use any CGO, but is failing rather consistently with the following error. Disabling the garbage collector with debug.SetGCPercent(-1) "fixes" the issue.

The main dependencies used are bubbletea, lipgloss, and pgx. Is there an easy way to see if any of my dependencies are using CGO? What else can I be trying to help narrow down this issue since I have tried quite a lot with no definitive answers.

There was no difference when switching from pgx to pq, a pure go postgres driver.

runtime: pointer 0xc0006eb850 to unallocated span span.base()=0xc0006e4000 span.limit=0xc0006ec000 span.state=0
runtime: found in object at *(0xc000142690+0x20)
object=0xc000142690 s.base()=0xc000142000 s.limit=0xc000143fe0 s.spanclass=14 s.elemsize=80 s.state=mSpanInUse
 *(object+0) = 0xc0004280e0
 *(object+8) = 0xc0002e6cc0
 *(object+16) = 0x2
 *(object+24) = 0x2
 *(object+32) = 0xc0006eb850 <==
 *(object+40) = 0xc00041c480
 *(object+48) = 0x2a9
 *(object+56) = 0x480
 *(object+64) = 0xc0003dc430
 *(object+72) = 0x2
fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?)

runtime: pointer 0xc0006eb850 to unallocated span span.base()=0xc0006e4000 span.limit=0xc0006ec000 span.state=0 runtime: found in object at *(0xc000142690+0x20) object=0xc000142690 s.base()=0xc000142000 s.limit=0xc000143fe0 s.spanclass=14 s.elemsize=80 s.state=mSpanInUse *(object+0) = 0xc0004280e0 *(object+8) = 0xc0002e6cc0 *(object+16) = 0x2 *(object+24) = 0x2 *(object+32) = 0xc0006eb850 <== *(object+40) = 0xc00041c480 *(object+48) = 0x2a9 *(object+56) = 0x480 *(object+64) = 0xc0003dc430 *(object+72) = 0x2 fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?)

runtime stack:
runtime.throw({0xe3835a?, 0x6?})
/usr/local/go/src/runtime/panic.go:1023 +0x5c fp=0x7c1dc4a65c00 sp=0x7c1dc4a65bd0 pc=0x43d41c
runtime.badPointer(0x7c1dc748c578, 0xc0006eb850, 0xc000142690, 0x20)
/usr/local/go/src/runtime/mbitmap.go:286 +0x165 fp=0x7c1dc4a65c50 sp=0x7c1dc4a65c00 pc=0x41a2c5
runtime.findObject(0xc0002e6cc0?, 0xc000142690?, 0x0?)
/usr/local/go/src/runtime/mbitmap.go:329 +0xa6 fp=0x7c1dc4a65c88 sp=0x7c1dc4a65c50 pc=0x41a446
runtime.scanobject(0xc000060168?, 0xc000060168)
/usr/local/go/src/runtime/mgcmark.go:1492 +0x14c fp=0x7c1dc4a65d18 sp=0x7c1dc4a65c88 pc=0x42692c
runtime.gcDrain(0xc000060168, 0x7)
/usr/local/go/src/runtime/mgcmark.go:1242 +0x1f4 fp=0x7c1dc4a65d80 sp=0x7c1dc4a65d18 pc=0x4261f4
runtime.gcDrainMarkWorkerIdle(...)
/usr/local/go/src/runtime/mgcmark.go:1114
runtime.gcBgMarkWorker.func2()
/usr/local/go/src/runtime/mgc.go:1406 +0x6f fp=0x7c1dc4a65dd0 sp=0x7c1dc4a65d80 pc=0x42282f
runtime.systemstack(0x800000)
/usr/local/go/src/runtime/asm_amd64.s:509 +0x4a fp=0x7c1dc4a65de0 sp=0x7c1dc4a65dd0 pc=0x470f4a

goroutine 12 gp=0xc00049a8c0 m=11 mp=0xc000600808 [GC worker (active)]:
runtime.systemstack_switch()
/usr/local/go/src/runtime/asm_amd64.s:474 +0x8 fp=0xc0004a1750 sp=0xc0004a1740 pc=0x470ee8
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1370 +0x1f2 fp=0xc0004a17e0 sp=0xc0004a1750 pc=0x4224f2
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0004a17e8 sp=0xc0004a17e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 1 gp=0xc0000061c0 m=nil [runnable]:
github.com/muesli/termenv.Style.Styled({0x2, {0x11798b8, 0x1}, {0xc00065f810, 0x1, 0x1}}, {0x11798b8?, 0x1?})
/home/user/go/pkg/mod/github.com/muesli/termenv@v0.15.2/style.go:43 +0x190 fp=0xc000718610 sp=0xc000718608 pc=0x6360d0
github.com/muesli/termenv.Style.String(...)
/home/user/go/pkg/mod/github.com/muesli/termenv@v0.15.2/style.go:39
github.com/charmbracelet/glamour/ansi.renderText({0x117d400, 0xc0002f6080}, 0x0, {{0x11762b8, 0x1}, {0x11762b8, 0x1}, {0x0, 0x0}, {0x0, ...}, ...}, ...)
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/ansi/baseelement.go:79 +0xc59 fp=0xc0007188c0 sp=0xc000718610 pc=0x850a99
github.com/charmbracelet/glamour/ansi.NewMarginWriter.func1({0x0?, 0x0?})
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/ansi/margin.go:32 +0x65 fp=0xc0007189b8 sp=0xc0007188c0 pc=0x85b2c5
github.com/muesli/reflow/padding.(*Writer).pad(0xc000386e00)
/home/user/go/pkg/mod/github.com/muesli/reflow@v0.3.0/padding/padding.go:100 +0xa5 fp=0xc0007189f0 sp=0xc0007189b8 pc=0x847725
github.com/muesli/reflow/padding.(*Writer).Write(0xc000386e00, {0xc0004c4c18?, 0x1, 0x0?})
/home/user/go/pkg/mod/github.com/muesli/reflow@v0.3.0/padding/padding.go:78 +0x10d fp=0xc000718a68 sp=0xc0007189f0 pc=0x84756d
github.com/muesli/reflow/ansi.(*Writer).writeRune(0xc000318900, 0x0?)
/home/user/go/pkg/mod/github.com/muesli/reflow@v0.3.0/ansi/writer.go:60 +0xb6 fp=0xc000718a98 sp=0xc000718a68 pc=0x6136f6
github.com/muesli/reflow/ansi.(*Writer).Write(0xc000318900, {0xc000718b30?, 0x1, 0x0?})
/home/user/go/pkg/mod/github.com/muesli/reflow@v0.3.0/ansi/writer.go:45 +0x1cf fp=0xc000718b10 sp=0xc000718a98 pc=0x6135af
github.com/muesli/reflow/indent.(*Writer).Write(0xc000142d20, {0xc0004b6000?, 0x1909, 0x0?})
/home/user/go/pkg/mod/github.com/muesli/reflow@v0.3.0/indent/indent.go:94 +0x1d0 fp=0xc000718b90 sp=0xc000718b10 pc=0x73dcd0
github.com/charmbracelet/glamour/ansi.(*MarginWriter).Write(...)
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/ansi/margin.go:51
github.com/charmbracelet/glamour/ansi.(*BlockElement).Finish(, {, _}, {{{0x0, 0x0}, 0x78, 0x0, 0x0, {{{...}, 0x0, ...}, ...}}, ...})
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/ansi/blockelement.go:34 +0x2e5 fp=0xc00071ad70 sp=0xc000718b90 pc=0x851cc5
github.com/charmbracelet/glamour/ansi.(*ANSIRenderer).renderNode(0xc0001be008, {0x1189f60, 0xc0002f6080}, {0xc000152000, 0x4ac, 0x500}, {0x1196078, 0xc0001a67e0}, 0x0)
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/ansi/renderer.go:126 +0x4b0 fp=0xc00071fd70 sp=0xc00071ad70 pc=0x85d370
github.com/charmbracelet/glamour/ansi.(*ANSIRenderer).renderNode-fm({0x1189f60?, 0xc0002f6080?}, {0xc000152000?, 0x500?, 0xc0002f6080?}, {0x1196078?, 0xc0001a67e0?}, 0x38?)
:1 +0x5e fp=0xc00071fdc8 sp=0xc00071fd70 pc=0x860bfe
github.com/yuin/goldmark/renderer.(*renderer).Render.func2({0x1196078, 0xc0001a67e0}, 0x0)
/home/user/go/pkg/mod/github.com/yuin/goldmark@v1.5.4/renderer/renderer.go:166 +0xc8 fp=0xc00071fe48 sp=0xc00071fdc8 pc=0x848128
github.com/yuin/goldmark/ast.walkHelper({0x1196078, 0xc0001a67e0}, 0xc00071feb0)
/home/user/go/pkg/mod/github.com/yuin/goldmark@v1.5.4/ast/ast.go:503 +0xb1 fp=0xc00071fe80 sp=0xc00071fe48 pc=0x823491
github.com/yuin/goldmark/ast.Walk(...)
/home/user/go/pkg/mod/github.com/yuin/goldmark@v1.5.4/ast/ast.go:487
github.com/yuin/goldmark/renderer.(*renderer).Render(0xc0003b45f0, {0x117cc00, 0xc0003f8270}, {0xc000152000, 0x4ac, 0x500}, {0x1196078, 0xc0001a67e0})
/home/user/go/pkg/mod/github.com/yuin/goldmark@v1.5.4/renderer/renderer.go:161 +0x230 fp=0xc00071ff08 sp=0xc00071fe80 pc=0x847f30
github.com/yuin/goldmark.(*markdown).Convert(0xc0002f6a80, {0xc000152000, 0x4ac, 0x500}, {0x117cc00, 0xc0003f8270}, {0x0, 0x0, 0x0})
/home/user/go/pkg/mod/github.com/yuin/goldmark@v1.5.4/markdown.go:117 +0x106 fp=0xc00071ff60 sp=0xc00071ff08 pc=0x880ae6
github.com/charmbracelet/glamour.(*TermRenderer).RenderBytes(0xc0003fe008, {0xc000152000, 0x4ac, 0x500})
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/glamour.go:248 +0x6e fp=0xc00071ffc0 sp=0xc00071ff60 pc=0x88e0ce
github.com/charmbracelet/glamour.(*TermRenderer).Render(0xc0003fe008, {0xc0003be700?, 0x2?})
/home/user/go/pkg/mod/github.com/charmbracelet/glamour@v0.7.0/glamour.go:241 +0x32 fp=0xc000720000 sp=0xc00071ffc0 pc=0x88e012
github.com/program/tui/screens.TrainingResults.Update({{0xc000482470, 0x2, 0x2}, 0xc0003ae600, 0xc0003ae630, 0xc0003ae6c0, 0x1, {0xc00056e000, 0x7cb8}, {0xe17196, ...}, ...}, ...)
/home/user/workspace/product/tui/screens/training_results.go:112 +0x2f3 fp=0xc000720188 sp=0xc000720000 pc=0xbcbdd3
github.com/program/tui/screens.(*TrainingResults).Update(0xc00007c000?, {0xd8e4a0?, 0xc0003f81e0?})
:1 +0x7f fp=0xc000720268 sp=0xc000720188 pc=0xbdb4bf
github.com/program/tui.ScreenController.Update({0x1, {0xc000228940, 0x2, 0x2}, 0x0, 0xc0000be420, 0x101f8c8, {{{0x1796320, 0x8, 0x8}, ...}, ...}, ...}, ...)
/home/user/workspace/product/tui/tui.go:259 +0x19df fp=0xc000721328 sp=0xc000720268 pc=0xb908ff
github.com/program/tui.(*ScreenController).Update(0xc000320900?, {0xd8e4a0?, 0xc0003f81e0?})
:1 +0xaa fp=0xc0007218b8 sp=0xc000721328 pc=0xb933ea
github.com/charmbracelet/bubbletea.(*Program).eventLoop(0xc000344100, {0x1183058?, 0xc000278008?}, 0xc00028cb40)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:412 +0x6c2 fp=0xc0007219b0 sp=0xc0007218b8 pc=0x610242
github.com/charmbracelet/bubbletea.(*Program).Run(0xc000344100)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:550 +0xa0e fp=0xc000721c00 sp=0xc0007219b0 pc=0x61110e
github.com/program/commands.Root.train.func2(0xc0001cf100?, {0xdf0b0c?, 0x4?, 0xdf0a34?})
/home/user/workspace/product/commands/train.go:23 +0x2f fp=0xc000721c28 sp=0xc000721c00 pc=0xc6cacf
github.com/spf13/cobra.(*Command).execute(0xc0003bc908, {0xc0003caa20, 0x3, 0x3})
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:983 +0xaca fp=0xc000721db0 sp=0xc000721c28 pc=0x5e8eaa
github.com/spf13/cobra.(*Command).ExecuteC(0xc0003bc308)
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1115 +0x3ff fp=0xc000721e88 sp=0xc000721db0 pc=0x5e977f
github.com/spf13/cobra.(*Command).Execute(0x46e2c6?)
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1039 +0x13 fp=0xc000721ea0 sp=0xc000721e88 pc=0x5e92d3
main.main()
/home/user/workspace/product/main.go:27 +0x76 fp=0xc000721f50 sp=0xc000721ea0 pc=0xc6d316
runtime.main()
/usr/local/go/src/runtime/proc.go:271 +0x29d fp=0xc000721fe0 sp=0xc000721f50 pc=0x43ff7d
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000721fe8 sp=0xc000721fe0 pc=0x472f01

goroutine 2 gp=0xc000006c40 m=nil [force gc (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000078fa8 sp=0xc000078f88 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.forcegchelper()
/usr/local/go/src/runtime/proc.go:326 +0xb3 fp=0xc000078fe0 sp=0xc000078fa8 pc=0x440233
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000078fe8 sp=0xc000078fe0 pc=0x472f01
created by runtime.init.6 in goroutine 1
/usr/local/go/src/runtime/proc.go:314 +0x1a

goroutine 3 gp=0xc000007180 m=nil [GC sweep wait]:
runtime.gopark(0x1?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000079780 sp=0xc000079760 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.bgsweep(0xc00003a070)
/usr/local/go/src/runtime/mgcsweep.go:318 +0xdf fp=0xc0000797c8 sp=0xc000079780 pc=0x42b9ff
runtime.gcenable.gowrap1()
/usr/local/go/src/runtime/mgc.go:203 +0x25 fp=0xc0000797e0 sp=0xc0000797c8 pc=0x420305
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000797e8 sp=0xc0000797e0 pc=0x472f01
created by runtime.gcenable in goroutine 1
/usr/local/go/src/runtime/mgc.go:203 +0x66

goroutine 4 gp=0xc000007340 m=nil [GC scavenge wait]:
runtime.gopark(0x22f5e5?, 0x17deff?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000079f78 sp=0xc000079f58 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.(*scavengerState).park(0x17b5d40)
/usr/local/go/src/runtime/mgcscavenge.go:425 +0x49 fp=0xc000079fa8 sp=0xc000079f78 pc=0x4293a9
runtime.bgscavenge(0xc00003a070)
/usr/local/go/src/runtime/mgcscavenge.go:658 +0x59 fp=0xc000079fc8 sp=0xc000079fa8 pc=0x429959
runtime.gcenable.gowrap2()
/usr/local/go/src/runtime/mgc.go:204 +0x25 fp=0xc000079fe0 sp=0xc000079fc8 pc=0x4202a5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000079fe8 sp=0xc000079fe0 pc=0x472f01
created by runtime.gcenable in goroutine 1
/usr/local/go/src/runtime/mgc.go:204 +0xa5

goroutine 5 gp=0xc000007c00 m=nil [finalizer wait]:
runtime.gopark(0xc000078648?, 0x413ca5?, 0xa8?, 0x1?, 0xc0000061c0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000078620 sp=0xc000078600 pc=0x4403ae
runtime.runfinq()
/usr/local/go/src/runtime/mfinal.go:194 +0x107 fp=0xc0000787e0 sp=0xc000078620 pc=0x41f347
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000787e8 sp=0xc0000787e0 pc=0x472f01
created by runtime.createfing in goroutine 1
/usr/local/go/src/runtime/mfinal.go:164 +0x3d

goroutine 6 gp=0xc000007dc0 m=nil [GC worker (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007a750 sp=0xc00007a730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc00007a7e0 sp=0xc00007a750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007a7e8 sp=0xc00007a7e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 18 gp=0xc000500000 m=nil [GC worker (idle)]:
runtime.gopark(0x101f3c8?, 0xc000040860?, 0x1a?, 0xa?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000074750 sp=0xc000074730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0000747e0 sp=0xc000074750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000747e8 sp=0xc0000747e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 7 gp=0xc00049a000 m=nil [GC worker (idle)]:
runtime.gopark(0xf66716d3b2e8?, 0x3?, 0x67?, 0x1b?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007af50 sp=0xc00007af30 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc00007afe0 sp=0xc00007af50 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007afe8 sp=0xc00007afe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 8 gp=0xc00049a1c0 m=nil [GC worker (idle)]:
runtime.gopark(0xf66641f04b1f?, 0x3?, 0x3d?, 0x4e?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007b750 sp=0xc00007b730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc00007b7e0 sp=0xc00007b750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007b7e8 sp=0xc00007b7e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 9 gp=0xc00049a380 m=nil [GC worker (idle)]:
runtime.gopark(0xf66641efae10?, 0x3?, 0x4d?, 0xf8?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007bf50 sp=0xc00007bf30 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc00007bfe0 sp=0xc00007bf50 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007bfe8 sp=0xc00007bfe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 10 gp=0xc00049a540 m=nil [GC worker (idle)]:
runtime.gopark(0xf66716d3bb44?, 0x3?, 0xb5?, 0xee?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0004a0750 sp=0xc0004a0730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0004a07e0 sp=0xc0004a0750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0004a07e8 sp=0xc0004a07e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 11 gp=0xc00049a700 m=nil [GC worker (idle)]:
runtime.gopark(0xf66716d3cd34?, 0x3?, 0x8b?, 0x88?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0004a0f50 sp=0xc0004a0f30 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0004a0fe0 sp=0xc0004a0f50 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0004a0fe8 sp=0xc0004a0fe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 13 gp=0xc0005828c0 m=nil [select]:
runtime.gopark(0xc0004a3f88?, 0x2?, 0x60?, 0x0?, 0xc0004a3f84?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0004a3e30 sp=0xc0004a3e10 pc=0x4403ae
runtime.selectgo(0xc0004a3f88, 0xc0004a3f80, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0004a3f50 sp=0xc0004a3e30 pc=0x451805
database/sql.(*DB).connectionOpener(0xc0000c68f0, {0x1185cb8, 0xc0003b4780})
/usr/local/go/src/database/sql/sql.go:1246 +0x87 fp=0xc0004a3fb8 sp=0xc0004a3f50 pc=0x8b7fa7
database/sql.OpenDB.gowrap1()
/usr/local/go/src/database/sql/sql.go:824 +0x28 fp=0xc0004a3fe0 sp=0xc0004a3fb8 pc=0x8b62c8
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0004a3fe8 sp=0xc0004a3fe0 pc=0x472f01
created by database/sql.OpenDB in goroutine 1
/usr/local/go/src/database/sql/sql.go:824 +0x14c

goroutine 34 gp=0xc000102380 m=nil [select]:
runtime.gopark(0xc00049e788?, 0x2?, 0x60?, 0x0?, 0xc00049e784?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00049e630 sp=0xc00049e610 pc=0x4403ae
runtime.selectgo(0xc00049e788, 0xc00049e780, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00049e750 sp=0xc00049e630 pc=0x451805
database/sql.(*DB).connectionOpener(0xc0002a41a0, {0x1185cb8, 0xc000142000})
/usr/local/go/src/database/sql/sql.go:1246 +0x87 fp=0xc00049e7b8 sp=0xc00049e750 pc=0x8b7fa7
database/sql.OpenDB.gowrap1()
/usr/local/go/src/database/sql/sql.go:824 +0x28 fp=0xc00049e7e0 sp=0xc00049e7b8 pc=0x8b62c8
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00049e7e8 sp=0xc00049e7e0 pc=0x472f01
created by database/sql.OpenDB in goroutine 1
/usr/local/go/src/database/sql/sql.go:824 +0x14c

goroutine 35 gp=0xc000102540 m=nil [select]:
runtime.gopark(0xc00049ef88?, 0x2?, 0x60?, 0x0?, 0xc00049ef84?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00049ee30 sp=0xc00049ee10 pc=0x4403ae
runtime.selectgo(0xc00049ef88, 0xc00049ef80, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00049ef50 sp=0xc00049ee30 pc=0x451805
database/sql.(*DB).connectionOpener(0xc0002a4c30, {0x1185cb8, 0xc000142370})
/usr/local/go/src/database/sql/sql.go:1246 +0x87 fp=0xc00049efb8 sp=0xc00049ef50 pc=0x8b7fa7
database/sql.OpenDB.gowrap1()
/usr/local/go/src/database/sql/sql.go:824 +0x28 fp=0xc00049efe0 sp=0xc00049efb8 pc=0x8b62c8
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00049efe8 sp=0xc00049efe0 pc=0x472f01
created by database/sql.OpenDB in goroutine 1
/usr/local/go/src/database/sql/sql.go:824 +0x14c

goroutine 36 gp=0xc000102700 m=nil [select]:
runtime.gopark(0xc00049f770?, 0x2?, 0x40?, 0xf6?, 0xc00049f744?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00049f5e8 sp=0xc00049f5c8 pc=0x4403ae
runtime.selectgo(0xc00049f770, 0xc00049f740, 0x2?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00049f708 sp=0xc00049f5e8 pc=0x451805
github.com/charmbracelet/bubbletea.(*Program).handleSignals.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:232 +0x14c fp=0xc00049f7e0 sp=0xc00049f708 pc=0x60f50c
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00049f7e8 sp=0xc00049f7e0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleSignals in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:223 +0x78

goroutine 37 gp=0xc0001028c0 m=nil [select]:
runtime.gopark(0xc00008bf98?, 0x2?, 0x2?, 0x0?, 0xc00008bf94?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00008be40 sp=0xc00008be20 pc=0x4403ae
runtime.selectgo(0xc00008bf98, 0xc00008bf90, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00008bf60 sp=0xc00008be40 pc=0x451805
github.com/charmbracelet/bubbletea.(*standardRenderer).listen(0xc000320900)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:140 +0x65 fp=0xc00008bfc8 sp=0xc00008bf60 pc=0x60bfa5
github.com/charmbracelet/bubbletea.(*standardRenderer).start.gowrap1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:94 +0x25 fp=0xc00008bfe0 sp=0xc00008bfc8 pc=0x60bb25
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00008bfe8 sp=0xc00008bfe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*standardRenderer).start in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:94 +0xbf

goroutine 14 gp=0xc000582c40 m=nil [select, locked to thread]:
runtime.gopark(0xc000074fa8?, 0x2?, 0x49?, 0x6?, 0xc000074f94?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000074e38 sp=0xc000074e18 pc=0x4403ae
runtime.selectgo(0xc000074fa8, 0xc000074f90, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc000074f58 sp=0xc000074e38 pc=0x451805
runtime.ensureSigM.func1()
/usr/local/go/src/runtime/signal_unix.go:1034 +0x19f fp=0xc000074fe0 sp=0xc000074f58 pc=0x46a55f
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000074fe8 sp=0xc000074fe0 pc=0x472f01
created by runtime.ensureSigM in goroutine 36
/usr/local/go/src/runtime/signal_unix.go:1017 +0xc8

goroutine 15 gp=0xc000582e00 m=4 mp=0xc00007f808 [syscall]:
runtime.notetsleepg(0x181c060, 0xffffffffffffffff)
/usr/local/go/src/runtime/lock_futex.go:246 +0x29 fp=0xc0000757a0 sp=0xc000075778 pc=0x4122c9
os/signal.signal_recv()
/usr/local/go/src/runtime/sigqueue.go:152 +0x29 fp=0xc0000757c0 sp=0xc0000757a0 pc=0x46f889
os/signal.loop()
/usr/local/go/src/os/signal/signal_unix.go:23 +0x13 fp=0xc0000757e0 sp=0xc0000757c0 pc=0x5fdfb3
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000757e8 sp=0xc0000757e0 pc=0x472f01
created by os/signal.Notify.func1.1 in goroutine 36
/usr/local/go/src/os/signal/signal.go:151 +0x1f

goroutine 39 gp=0xc000102c40 m=nil [select]:
runtime.gopark(0xc0004a2790?, 0x2?, 0xb8?, 0xbc?, 0xc0004a2774?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0004a2618 sp=0xc0004a25f8 pc=0x4403ae
runtime.selectgo(0xc0004a2790, 0xc0004a2770, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0004a2738 sp=0xc0004a2618 pc=0x451805
github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:274 +0xd4 fp=0xc0004a27e0 sp=0xc0004a2738 pc=0x60f934
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0004a27e8 sp=0xc0004a27e0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleCommands in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:270 +0x90

goroutine 73 gp=0xc000103180 m=nil [IO wait]:
runtime.gopark(0x18?, 0x428745?, 0xd0?, 0x8?, 0xb?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0006d0848 sp=0xc0006d0828 pc=0x4403ae
runtime.netpollblock(0x48aad8?, 0x4097c6?, 0x0?)
/usr/local/go/src/runtime/netpoll.go:573 +0xf7 fp=0xc0006d0880 sp=0xc0006d0848 pc=0x4391b7
internal/poll.runtime_pollWait(0x7c1dc4a97e68, 0x72)
/usr/local/go/src/runtime/netpoll.go:345 +0x85 fp=0xc0006d08a0 sp=0xc0006d0880 pc=0x46d7c5
internal/poll.(*pollDesc).wait(0xc00025c300?, 0xc00033e000?, 0x0)
/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0x27 fp=0xc0006d08c8 sp=0xc0006d08a0 pc=0x4e5007
internal/poll.(*pollDesc).waitRead(...)
/usr/local/go/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc00025c300, {0xc00033e000, 0x2000, 0x2000})
/usr/local/go/src/internal/poll/fd_unix.go:164 +0x27a fp=0xc0006d0960 sp=0xc0006d08c8 pc=0x4e62fa
net.(*netFD).Read(0xc00025c300, {0xc00033e000?, 0x0?, 0x10000103180?})
/usr/local/go/src/net/fd_posix.go:55 +0x25 fp=0xc0006d09a8 sp=0xc0006d0960 pc=0x5708e5
net.(*conn).Read(0xc00007c150, {0xc00033e000?, 0xc000103180?, 0x18?})
/usr/local/go/src/net/net.go:185 +0x45 fp=0xc0006d09f0 sp=0xc0006d09a8 pc=0x580be5
net.(*TCPConn).Read(0x17?, {0xc00033e000?, 0xc0007d20f0?, 0x0?})
:1 +0x25 fp=0xc0006d0a20 sp=0xc0006d09f0 pc=0x591785
github.com/jackc/pgx/v5/pgconn/internal/bgreader.(*BGReader).Read(0xc0002e6d40, {0xc00033e000, 0x2000, 0x2000})
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgconn/internal/bgreader/bgreader.go:100 +0xd7 fp=0xc0006d0a90 sp=0xc0006d0a20 pc=0x9fdcb7
io.ReadAtLeast({0x117d200, 0xc0002e6d40}, {0xc00033e000, 0x2000, 0x2000}, 0x5)
/usr/local/go/src/io/io.go:335 +0x90 fp=0xc0006d0ad8 sp=0xc0006d0a90 pc=0x480030
github.com/jackc/pgx/v5/pgproto3.(*chunkReader).Next(0xc000491530, 0x5)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgproto3/chunkreader.go:80 +0x291 fp=0xc0006d0b30 sp=0xc0006d0ad8 pc=0x8f6411
github.com/jackc/pgx/v5/pgproto3.(*Frontend).Receive(0xc000317208)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgproto3/frontend.go:307 +0x3c fp=0xc0006d0bc0 sp=0xc0006d0b30 pc=0x8ff2fc
github.com/jackc/pgx/v5/pgconn.(*PgConn).peekMessage(0xc000316d88)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgconn/pgconn.go:547 +0x14a fp=0xc0006d0c28 sp=0xc0006d0bc0 pc=0xa0b48a
github.com/jackc/pgx/v5/pgconn.(*PgConn).receiveMessage(0xc000316d88)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgconn/pgconn.go:567 +0x1c fp=0xc0006d0c80 sp=0xc0006d0c28 pc=0xa0b59c
github.com/jackc/pgx/v5/pgconn.(*MultiResultReader).receiveMessage(0xc000316ea0)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgconn/pgconn.go:1434 +0x25 fp=0xc0006d0cd0 sp=0xc0006d0c80 pc=0xa12285
github.com/jackc/pgx/v5/pgconn.(*MultiResultReader).NextResult(0xc000316ea0)
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/pgconn/pgconn.go:1462 +0x4b fp=0xc0006d0da8 sp=0xc0006d0cd0 pc=0xa126eb
github.com/jackc/pgx/v5.(*Conn).execSimpleProtocol(0xd04f80?, {0x1185988?, 0x181b4c0?}, {0xc0006a0000?, 0x1b6d305b1b206d32?}, {0x181b4c0?, 0x4b9465?, 0xc00036e068?})
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/conn.go:543 +0xb0 fp=0xc0006d0e00 sp=0xc0006d0da8 pc=0xb367d0
github.com/jackc/pgx/v5.(*Conn).exec(0xc000358c60, {0x1185988, 0x181b4c0}, {0xc0006a0000, 0x186}, {0x181b4c0?, 0x2a?, 0x35323b353b000022?})
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/conn.go:528 +0x558 fp=0xc0006d0ec0 sp=0xc0006d0e00 pc=0xb36558
github.com/jackc/pgx/v5.(*Conn).Exec(0xc000358c60, {0x1185988?, 0x181b4c0?}, {0xc0006a0000, 0x186}, {0x181b4c0, 0x0, 0x0})
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/conn.go:447 +0x12f fp=0xc0006d0f70 sp=0xc0006d0ec0 pc=0xb35f0f
github.com/jackc/pgx/v5/stdlib.(*Conn).ExecContext(0xc00029c420, {0x1185988, 0x181b4c0}, {0xc0006a0000, 0x186}, {0x181b4c0, 0x0, 0xc0006d10e0?})
/home/user/go/pkg/mod/github.com/jackc/pgx/v5@v5.6.0/stdlib/sql.go:485 +0x248 fp=0xc0006d1020 sp=0xc0006d0f70 pc=0xb45328
database/sql.ctxDriverExec({0x1185988?, 0x181b4c0?}, {0x7c1dc7cc0fc8?, 0xc00029c420?}, {0x0?, 0x0?}, {0xc0006a0000?, 0x0?}, {0x181b4c0, 0x0, ...})
/usr/local/go/src/database/sql/ctxutil.go:31 +0xd7 fp=0xc0006d10a8 sp=0xc0006d1020 pc=0x8b35d7
database/sql.(*DB).execDC.func2()
/usr/local/go/src/database/sql/sql.go:1703 +0x159 fp=0xc0006d1168 sp=0xc0006d10a8 pc=0x8bafb9
database/sql.withLock({0x1180a08, 0xc0002a0120}, 0xc0006d1320)
/usr/local/go/src/database/sql/sql.go:3530 +0x82 fp=0xc0006d11a8 sp=0xc0006d1168 pc=0x8c3b82
database/sql.(*DB).execDC(0x7c1e10188101?, {0x1185988, 0x181b4c0}, 0xc0002a0120, 0x5e8ce0?, {0xc0006a0000, 0x186}, {0x0, 0x0, 0x0})
/usr/local/go/src/database/sql/sql.go:1698 +0x229 fp=0xc0006d13c0 sp=0xc0006d11a8 pc=0x8ba849
database/sql.(*DB).exec(0xc0002a41a0, {0x1185988, 0x181b4c0}, {0xc0006a0000, 0x186}, {0x0, 0x0, 0x0}, 0xf8?)
/usr/local/go/src/database/sql/sql.go:1683 +0xd5 fp=0xc0006d1430 sp=0xc0006d13c0 pc=0x8ba595
database/sql.(*DB).ExecContext.func1(0xd0?)
/usr/local/go/src/database/sql/sql.go:1662 +0x4f fp=0xc0006d1498 sp=0xc0006d1430 pc=0x8ba3af
database/sql.(*DB).retry(0x0?, 0xc0006d1510)
/usr/local/go/src/database/sql/sql.go:1566 +0x42 fp=0xc0006d14e0 sp=0xc0006d1498 pc=0x8b99c2
database/sql.(*DB).ExecContext(0xc000482550?, {0x1185988?, 0x181b4c0?}, {0xc0006a0000?, 0x7?}, {0x0?, 0x0?, 0x0?})
/usr/local/go/src/database/sql/sql.go:1661 +0xc8 fp=0xc0006d1578 sp=0xc0006d14e0 pc=0x8ba2c8
database/sql.(*DB).Exec(...)
/usr/local/go/src/database/sql/sql.go:1675
github.com/program/algorithms.SV_Train(0xc000000540, {{0x0, 0x0, 0x0}, {{0x181b4c0, 0x0, 0x0}, {0xc0002f6180, 0x2, 0x2}, ...}, ...})
/home/user/workspace/product/algorithms/sv.go:34 +0x6bc fp=0xc0006d1cb8 sp=0xc0006d1578 pc=0xba44bc
github.com/program/algorithms.RunTrainingAlgorithm({0xc0003826e0, 0x1e}, _, {{0x0, 0x0, 0x0}, {{0x181b4c0, 0x0, 0x0}, {0xc0002f6180, ...}, ...}, ...})
/home/user/workspace/product/algorithms/training_algorithms.go:73 +0x11d fp=0xc0006d1df0 sp=0xc0006d1cb8 pc=0xba7b7d
github.com/program/tui/screens.TrainingResults.Prepare.func1()
/home/user/workspace/product/tui/screens/training_results.go:79 +0x5c fp=0xc0006d1f50 sp=0xc0006d1df0 pc=0xbcb9bc
github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1.1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:289 +0x29 fp=0xc0006d1fe0 sp=0xc0006d1f50 pc=0x60fa09
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0006d1fe8 sp=0xc0006d1fe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1 in goroutine 39
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:288 +0x139

goroutine 31 gp=0xc000500c40 m=nil [chan receive]:
runtime.gopark(0xc0006f0f08?, 0x2?, 0x90?, 0x20?, 0x100c0006f0e90?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0006f0e48 sp=0xc0006f0e28 pc=0x4403ae
runtime.chanrecv(0xc0003d8600, 0xc0006f0f20, 0x1)
/usr/local/go/src/runtime/chan.go:583 +0x3bf fp=0xc0006f0ec0 sp=0xc0006f0e48 pc=0x40c65f
runtime.chanrecv1(0xc00028cae0?, 0xc00028cae0?)
/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc0006f0ee8 sp=0xc0006f0ec0 pc=0x40c272
github.com/charmbracelet/bubbletea.Tick.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/commands.go:151 +0x45 fp=0xc0006f0f50 sp=0xc0006f0ee8 pc=0x608f65
github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1.1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:289 +0x29 fp=0xc0006f0fe0 sp=0xc0006f0f50 pc=0x60fa09
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0006f0fe8 sp=0xc0006f0fe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1 in goroutine 39
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:288 +0x139

Another stack trace showing slightly different results

runtime: pointer 0xc0007c5850 to unused region of span span.base()=0xc000474000 span.limit=0xc000475f80 span.state=1 runtime: found in object at *(0xc0006563c0+0x20) object=0xc0006563c0 s.base()=0xc000656000 s.limit=0xc000657fe0 s.spanclass=14 s.elemsize=80 s.state=mSpanInUse *(object+0) = 0xc00028c380 *(object+8) = 0xc00030a2c0 *(object+16) = 0x2 *(object+24) = 0x2 *(object+32) = 0xc0007c5850 <== *(object+40) = 0xc0004b6480 *(object+48) = 0x2d1 *(object+56) = 0x480 *(object+64) = 0xc0004b2110 *(object+72) = 0x2 fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?)

runtime stack:
runtime.throw({0xe3835a?, 0x6?})
/usr/local/go/src/runtime/panic.go:1023 +0x5c fp=0x7e6b477fdc00 sp=0x7e6b477fdbd0 pc=0x43d41c
runtime.badPointer(0x7e6b4e159ab8, 0xc0007c5850, 0xc0006563c0, 0x20)
/usr/local/go/src/runtime/mbitmap.go:286 +0x165 fp=0x7e6b477fdc50 sp=0x7e6b477fdc00 pc=0x41a2c5
runtime.findObject(0xc00030a2c0?, 0xc0006563c0?, 0x0?)
/usr/local/go/src/runtime/mbitmap.go:329 +0xa6 fp=0x7e6b477fdc88 sp=0x7e6b477fdc50 pc=0x41a446
runtime.scanobject(0xc000060168?, 0xc000060168)
/usr/local/go/src/runtime/mgcmark.go:1492 +0x14c fp=0x7e6b477fdd18 sp=0x7e6b477fdc88 pc=0x42692c
runtime.gcDrain(0xc000060168, 0x7)
/usr/local/go/src/runtime/mgcmark.go:1242 +0x1f4 fp=0x7e6b477fdd80 sp=0x7e6b477fdd18 pc=0x4261f4
runtime.gcDrainMarkWorkerIdle(...)
/usr/local/go/src/runtime/mgcmark.go:1114
runtime.gcBgMarkWorker.func2()
/usr/local/go/src/runtime/mgc.go:1406 +0x6f fp=0x7e6b477fddd0 sp=0x7e6b477fdd80 pc=0x42282f
runtime.systemstack(0x800000)
/usr/local/go/src/runtime/asm_amd64.s:509 +0x4a fp=0x7e6b477fdde0 sp=0x7e6b477fddd0 pc=0x470f4a

goroutine 23 gp=0xc000102c40 m=9 mp=0xc000580008 [GC worker (active)]:
runtime.systemstack_switch()
/usr/local/go/src/runtime/asm_amd64.s:474 +0x8 fp=0xc000076f50 sp=0xc000076f40 pc=0x470ee8
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1370 +0x1f2 fp=0xc000076fe0 sp=0xc000076f50 pc=0x4224f2
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000076fe8 sp=0xc000076fe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 1 gp=0xc0000061c0 m=nil [runnable]:
runtime.gcTrigger.test({0x0?, 0x0?, 0x0?})
/usr/local/go/src/runtime/mgc.go:568 +0xdc fp=0xc0000501b0 sp=0xc0000501a8 pc=0x4206bc
runtime.mallocgc(0x2b8, 0xdcf2c0, 0x1)
/usr/local/go/src/runtime/malloc.go:1307 +0x805 fp=0xc000050238 sp=0xc0000501b0 pc=0x413a65
runtime.convT(0xdcf2c0, 0xc000051328)
/usr/local/go/src/runtime/iface.go:331 +0x2e fp=0xc000050268 sp=0xc000050238 pc=0x410cce
github.com/program/product/tui.ScreenController.Update({0x1, {0xc000247880, 0x2, 0x2}, 0x0, 0xc0000d8370, 0x101f8c8, {{{0x1796320, 0x8, 0x8}, ...}, ...}, ...}, ...)
/home/user/workspace/program/tui/tui.go:262 +0x1c57 fp=0xc000051328 sp=0xc000050268 pc=0xb90b77
github.com/program/product/tui.(*ScreenController).Update(0xc000001440?, {0xcd4500?, 0xc0005964b0?})
:1 +0xaa fp=0xc0000518b8 sp=0xc000051328 pc=0xb933ea
github.com/charmbracelet/bubbletea.(*Program).eventLoop(0xc00064f200, {0x1183058?, 0xc00059cb08?}, 0xc000047440)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:412 +0x6c2 fp=0xc0000519b0 sp=0xc0000518b8 pc=0x610242
github.com/charmbracelet/bubbletea.(*Program).Run(0xc00064f200)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:550 +0xa0e fp=0xc000051c00 sp=0xc0000519b0 pc=0x61110e
github.com/program/product/commands.Root.train.func2(0xc00064eb00?, {0xdf0b0c?, 0x4?, 0xdf0a34?})
/home/user/workspace/program/commands/train.go:23 +0x2f fp=0xc000051c28 sp=0xc000051c00 pc=0xc6cacf
github.com/spf13/cobra.(*Command).execute(0xc0002e4c08, {0xc0003f9050, 0x3, 0x3})
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:983 +0xaca fp=0xc000051db0 sp=0xc000051c28 pc=0x5e8eaa
github.com/spf13/cobra.(*Command).ExecuteC(0xc0002e4608)
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1115 +0x3ff fp=0xc000051e88 sp=0xc000051db0 pc=0x5e977f
github.com/spf13/cobra.(*Command).Execute(0x46e2c6?)
/home/user/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1039 +0x13 fp=0xc000051ea0 sp=0xc000051e88 pc=0x5e92d3
main.main()
/home/user/workspace/program/main.go:27 +0x76 fp=0xc000051f50 sp=0xc000051ea0 pc=0xc6d316
runtime.main()
/usr/local/go/src/runtime/proc.go:271 +0x29d fp=0xc000051fe0 sp=0xc000051f50 pc=0x43ff7d
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000051fe8 sp=0xc000051fe0 pc=0x472f01

goroutine 2 gp=0xc000006c40 m=nil [force gc (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000078fa8 sp=0xc000078f88 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.forcegchelper()
/usr/local/go/src/runtime/proc.go:326 +0xb3 fp=0xc000078fe0 sp=0xc000078fa8 pc=0x440233
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000078fe8 sp=0xc000078fe0 pc=0x472f01
created by runtime.init.6 in goroutine 1
/usr/local/go/src/runtime/proc.go:314 +0x1a

goroutine 3 gp=0xc000007180 m=nil [GC sweep wait]:
runtime.gopark(0x17b5001?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000079780 sp=0xc000079760 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.bgsweep(0xc00003a070)
/usr/local/go/src/runtime/mgcsweep.go:318 +0xdf fp=0xc0000797c8 sp=0xc000079780 pc=0x42b9ff
runtime.gcenable.gowrap1()
/usr/local/go/src/runtime/mgc.go:203 +0x25 fp=0xc0000797e0 sp=0xc0000797c8 pc=0x420305
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000797e8 sp=0xc0000797e0 pc=0x472f01
created by runtime.gcenable in goroutine 1
/usr/local/go/src/runtime/mgc.go:203 +0x66

goroutine 4 gp=0xc000007340 m=nil [sleep]:
runtime.gopark(0xc000036050?, 0xf72b1c7cd5ca?, 0x0?, 0x0?, 0x101f308?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000079f38 sp=0xc000079f18 pc=0x4403ae
runtime.goparkunlock(...)
/usr/local/go/src/runtime/proc.go:408
runtime.(*scavengerState).sleep(0x17b5d40, 0x40c8a10000000000)
/usr/local/go/src/runtime/mgcscavenge.go:504 +0x113 fp=0xc000079fa8 sp=0xc000079f38 pc=0x429573
runtime.bgscavenge(0xc00003a070)
/usr/local/go/src/runtime/mgcscavenge.go:662 +0x74 fp=0xc000079fc8 sp=0xc000079fa8 pc=0x429974
runtime.gcenable.gowrap2()
/usr/local/go/src/runtime/mgc.go:204 +0x25 fp=0xc000079fe0 sp=0xc000079fc8 pc=0x4202a5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000079fe8 sp=0xc000079fe0 pc=0x472f01
created by runtime.gcenable in goroutine 1
/usr/local/go/src/runtime/mgc.go:204 +0xa5

goroutine 5 gp=0xc000007c00 m=nil [finalizer wait]:
runtime.gopark(0xc000078648?, 0x413ca5?, 0xa8?, 0x1?, 0xc0000061c0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000078620 sp=0xc000078600 pc=0x4403ae
runtime.runfinq()
/usr/local/go/src/runtime/mfinal.go:194 +0x107 fp=0xc0000787e0 sp=0xc000078620 pc=0x41f347
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000787e8 sp=0xc0000787e0 pc=0x472f01
created by runtime.createfing in goroutine 1
/usr/local/go/src/runtime/mfinal.go:164 +0x3d

goroutine 6 gp=0xc000007dc0 m=nil [GC worker (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007a750 sp=0xc00007a730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc00007a7e0 sp=0xc00007a750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007a7e8 sp=0xc00007a7e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 18 gp=0xc000102380 m=nil [GC worker (idle)]:
runtime.gopark(0xf72a9d82a979?, 0x1?, 0xcf?, 0x84?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000074750 sp=0xc000074730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0000747e0 sp=0xc000074750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000747e8 sp=0xc0000747e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 19 gp=0xc000102540 m=nil [GC worker (idle)]:
runtime.gopark(0xf72b1c763a68?, 0x1?, 0x4b?, 0x7d?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000074f50 sp=0xc000074f30 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc000074fe0 sp=0xc000074f50 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000074fe8 sp=0xc000074fe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 20 gp=0xc000102700 m=nil [GC worker (idle)]:
runtime.gopark(0x181cce0?, 0x1?, 0x82?, 0x1d?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000075750 sp=0xc000075730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0000757e0 sp=0xc000075750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000757e8 sp=0xc0000757e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 21 gp=0xc0001028c0 m=nil [GC worker (idle)]:
runtime.gopark(0xf72b1c762f39?, 0xc00010e080?, 0x1a?, 0xa?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000075f50 sp=0xc000075f30 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc000075fe0 sp=0xc000075f50 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000075fe8 sp=0xc000075fe0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 22 gp=0xc000102a80 m=nil [GC worker (idle)]:
runtime.gopark(0xf72b1c761bc1?, 0x3?, 0x3a?, 0x4b?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000076750 sp=0xc000076730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0000767e0 sp=0xc000076750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000767e8 sp=0xc0000767e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 24 gp=0xc000102e00 m=nil [GC worker (idle)]:
runtime.gopark(0xf72b1c76b717?, 0x1?, 0x8?, 0x86?, 0x0?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000077750 sp=0xc000077730 pc=0x4403ae
runtime.gcBgMarkWorker()
/usr/local/go/src/runtime/mgc.go:1310 +0xe5 fp=0xc0000777e0 sp=0xc000077750 pc=0x4223e5
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0000777e8 sp=0xc0000777e0 pc=0x472f01
created by runtime.gcBgMarkStartWorkers in goroutine 1
/usr/local/go/src/runtime/mgc.go:1234 +0x1c

goroutine 7 gp=0xc000582700 m=nil [select]:
runtime.gopark(0xc00032e788?, 0x2?, 0x60?, 0x0?, 0xc00032e784?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00032e630 sp=0xc00032e610 pc=0x4403ae
runtime.selectgo(0xc00032e788, 0xc00032e780, 0x181b4c0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00032e750 sp=0xc00032e630 pc=0x451805
database/sql.(*DB).connectionOpener(0xc0003888f0, {0x1185cb8, 0xc000596280})
/usr/local/go/src/database/sql/sql.go:1246 +0x87 fp=0xc00032e7b8 sp=0xc00032e750 pc=0x8b7fa7
database/sql.OpenDB.gowrap1()
/usr/local/go/src/database/sql/sql.go:824 +0x28 fp=0xc00032e7e0 sp=0xc00032e7b8 pc=0x8b62c8
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00032e7e8 sp=0xc00032e7e0 pc=0x472f01
created by database/sql.OpenDB in goroutine 1
/usr/local/go/src/database/sql/sql.go:824 +0x14c

goroutine 10 gp=0xc000582e00 m=nil [select]:
runtime.gopark(0xc00032ff70?, 0x2?, 0x40?, 0xfe?, 0xc00032ff44?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00032fde8 sp=0xc00032fdc8 pc=0x4403ae
runtime.selectgo(0xc00032ff70, 0xc00032ff40, 0x2?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00032ff08 sp=0xc00032fde8 pc=0x451805
github.com/charmbracelet/bubbletea.(*Program).handleSignals.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:232 +0x14c fp=0xc00032ffe0 sp=0xc00032ff08 pc=0x60f50c
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00032ffe8 sp=0xc00032ffe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleSignals in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:223 +0x78

goroutine 11 gp=0xc000582fc0 m=nil [select]:
runtime.gopark(0xc00056bf98?, 0x2?, 0x2?, 0x0?, 0xc00056bf94?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00056be40 sp=0xc00056be20 pc=0x4403ae
runtime.selectgo(0xc00056bf98, 0xc00056bf90, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00056bf60 sp=0xc00056be40 pc=0x451805
github.com/charmbracelet/bubbletea.(*standardRenderer).listen(0xc000001440)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:140 +0x65 fp=0xc00056bfc8 sp=0xc00056bf60 pc=0x60bfa5
github.com/charmbracelet/bubbletea.(*standardRenderer).start.gowrap1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:94 +0x25 fp=0xc00056bfe0 sp=0xc00056bfc8 pc=0x60bb25
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00056bfe8 sp=0xc00056bfe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*standardRenderer).start in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/standard_renderer.go:94 +0xbf

goroutine 25 gp=0xc000103340 m=nil [select, locked to thread]:
runtime.gopark(0xc00032a7a8?, 0x2?, 0x49?, 0x6?, 0xc00032a794?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00032a638 sp=0xc00032a618 pc=0x4403ae
runtime.selectgo(0xc00032a7a8, 0xc00032a790, 0x0?, 0x0, 0x40?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00032a758 sp=0xc00032a638 pc=0x451805
runtime.ensureSigM.func1()
/usr/local/go/src/runtime/signal_unix.go:1034 +0x19f fp=0xc00032a7e0 sp=0xc00032a758 pc=0x46a55f
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00032a7e8 sp=0xc00032a7e0 pc=0x472f01
created by runtime.ensureSigM in goroutine 10
/usr/local/go/src/runtime/signal_unix.go:1017 +0xc8

goroutine 13 gp=0xc000583340 m=nil [select]:
runtime.gopark(0xc00007b790?, 0x2?, 0x7c?, 0x88?, 0xc00007b774?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc00007b618 sp=0xc00007b5f8 pc=0x4403ae
runtime.selectgo(0xc00007b790, 0xc00007b770, 0x0?, 0x0, 0x0?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc00007b738 sp=0xc00007b618 pc=0x451805
github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:274 +0xd4 fp=0xc00007b7e0 sp=0xc00007b738 pc=0x60f934
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc00007b7e8 sp=0xc00007b7e0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleCommands in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:270 +0x90

goroutine 34 gp=0xc000502380 m=5 mp=0xc000100008 [syscall]:
runtime.notetsleepg(0x181c060, 0xffffffffffffffff)
/usr/local/go/src/runtime/lock_futex.go:246 +0x29 fp=0xc0003ea7a0 sp=0xc0003ea778 pc=0x4122c9
os/signal.signal_recv()
/usr/local/go/src/runtime/sigqueue.go:152 +0x29 fp=0xc0003ea7c0 sp=0xc0003ea7a0 pc=0x46f889
os/signal.loop()
/usr/local/go/src/os/signal/signal_unix.go:23 +0x13 fp=0xc0003ea7e0 sp=0xc0003ea7c0 pc=0x5fdfb3
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0003ea7e8 sp=0xc0003ea7e0 pc=0x472f01
created by os/signal.Notify.func1.1 in goroutine 10
/usr/local/go/src/os/signal/signal.go:151 +0x1f

goroutine 44 gp=0xc000103880 m=nil [chan receive]:
runtime.gopark(0xc000328f84?, 0x2?, 0x20?, 0x3f?, 0x1010000328e90?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc000328e48 sp=0xc000328e28 pc=0x4403ae
runtime.chanrecv(0xc0000a23c0, 0xc000328f20, 0x1)
/usr/local/go/src/runtime/chan.go:583 +0x3bf fp=0xc000328ec0 sp=0xc000328e48 pc=0x40c65f
runtime.chanrecv1(0xc000047920?, 0xc0000473e0?)
/usr/local/go/src/runtime/chan.go:442 +0x12 fp=0xc000328ee8 sp=0xc000328ec0 pc=0x40c272
github.com/charmbracelet/bubbletea.Tick.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/commands.go:151 +0x45 fp=0xc000328f50 sp=0xc000328ee8 pc=0x608f65
github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1.1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:289 +0x29 fp=0xc000328fe0 sp=0xc000328f50 pc=0x60fa09
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc000328fe8 sp=0xc000328fe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).handleCommands.func1 in goroutine 13
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:288 +0x139

goroutine 194 gp=0xc00049afc0 m=nil [select]:
runtime.gopark(0xc0003e5fa0?, 0x2?, 0x30?, 0x5e?, 0xc0003e5f44?)
/usr/local/go/src/runtime/proc.go:402 +0xce fp=0xc0003e5df0 sp=0xc0003e5dd0 pc=0x4403ae
runtime.selectgo(0xc0003e5fa0, 0xc0003e5f40, 0xc0003e5fb0?, 0x1, 0x2?, 0x1)
/usr/local/go/src/runtime/select.go:327 +0x725 fp=0xc0003e5f10 sp=0xc0003e5df0 pc=0x451805
github.com/charmbracelet/bubbletea.(*Program).Send(...)
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:607
github.com/charmbracelet/bubbletea.(*Program).eventLoop.func1()
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:398 +0x146 fp=0xc0003e5fe0 sp=0xc0003e5f10 pc=0x610526
runtime.goexit({})
/usr/local/go/src/runtime/asm_amd64.s:1695 +0x1 fp=0xc0003e5fe8 sp=0xc0003e5fe0 pc=0x472f01
created by github.com/charmbracelet/bubbletea.(*Program).eventLoop in goroutine 1
/home/user/go/pkg/mod/github.com/charmbracelet/bubbletea@v0.26.4/tea.go:375 +0x20e

I tried the following flags:

• CGO_ENABLED=0 go build still crashes with no significant difference in output as far as I can tell.
• go build -race still crashes with no significant difference in output as far as I can tell.
• GODEBUG=gccheckmark=1 go build still crashes with no significant difference in output as far as I can tell.
• GODEBUG=gcshrinkstackoff=1 go build still crashes with no significant difference in output as far as I can tell.
• GODEBUG=asyncpreemptoff=1 go build still crashes with no significant difference in output as far as I can tell.

What did you expect to see?

I expect no crash.

[gabyhelp]

Related Issues and Documentation

• runtime: fatal error: found bad pointer in Go heap #26243 (closed)
• runtime: fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?) #37688 (closed)
• fatal error: found bad pointer in Go heap (incorrect use of unsafe or cgo?) #37506 (closed)
• runtime #60398 (closed)
• runtime: marked free object in span #47415 (closed)
• runtime: fatal error: found bad pointer in Go heap #29362 (closed)
• runtime: fatal error: found bad pointer in Go heap (1.19.1) #56552 (closed)
• runtime: panic marked free object in span[1.17] #54247 (closed)
• runtime: GC crash on linux-amd64-noopt #17785 (closed)
• runtime: pointer 0xe9f4d95300 to unused region of span span.base()=0xc311776000 span. limit=0xc311778000 span.state=1 #51552 (closed)

_{(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)}

[seankhliao]

Unlike many projects, the Go project does not use GitHub Issues for general discussion or asking questions. GitHub Issues are used for tracking bugs and proposals only.

For questions please refer to https://github.com/golang/go/wiki/Questions

[kalensk]

I am confused why this was closed since isn't this a potential bug that should be explored?

[ianlancetaylor]

Perhaps, but experience is that this kind of problem is always due to the program doing something that it is not permitted to do, often involving conversions between unsafe.Pointer values and uintptr values. And without the ability to recreate the problem ourselves, our chances of figuring out what is wrong are unfortunately zero.

[kalensk]

Perhaps, but experience is that this kind of problem is always due to the program doing something that it is not permitted to do, often involving conversions between unsafe.Pointer values and uintptr values. And without the ability to recreate the problem ourselves, our chances of figuring out what is wrong are unfortunately zero.

Sure, makes sense. However, I went through the majority (not all yet) of my dependencies and none use unsafe. And running with CGO disabled with CGO_ENABLED=0 go build, and enabling the race detector with go build -race both still crash with no significant difference in output as far as I can tell. This is saying something. It would help to have some expertise or input in narrowing down what's going on so we can help improve the go ecosystem.

[kalensk]

I have a new clue from Carson in the golang discord channel who suggested using go build -asan which enables interoperation with address sanitizer. which results in no crash even after 50+ runs. Honestly, that flag is above my knowledge at the moment, but hopefully this can help better figure out what might be going on.

[ianlancetaylor]

It would help to have some expertise or input in narrowing down what's going on so we can help improve the go ecosystem.

Understood. But the place to get that expertise is not the issue tracker. We have learned through experience that other forums, such as the Discord channel, offer better support.

[kalensk]

Posting the fix for others who stumble upon this. It took lots of head banging in trying to narrow things down and looking through the existing issue reports around this particular error.

We were using a struct which had a field with type strings.Builder. The strings.Builder docs state Do not copy a non-zero Builder as explained in this comment: golang/go#47276 (comment). Switching to a string fixed the issue.

While the strings.Builder field was never non-zero in our use case, there might have been some race condition of sorts where it could become non-zero by the time the garbage collector was invoked since it was not always crashing right away.

Take Away: It would be great of the linters could warn about this, or if there could be a better error messages around this.

[ianlancetaylor]

Thanks for following up. I'll add #47276 to the 1.24 release so that hopefully somebody will at least take a look.