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runtime: error message: late gcWork put #29254

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minux opened this issue Dec 14, 2018 · 3 comments

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commented Dec 14, 2018

My recent trybot run for CL 154109 found one interesting crash in runtime.
https://storage.googleapis.com/go-build-log/d5d034d0/misc-vet-vetall_30cbb812.log

runtime: late gcWork put
ptrs=0xc000068000 s.base()=0xc000068000 s.limit=0xc000069fe0 s.spanclass=14 s.elemsize=96 s.state=mSpanInUse
 *(ptrs+0) = 0xc00028cf00
 *(ptrs+8) = 0x0
 *(ptrs+16) = 0x0
 *(ptrs+24) = 0x0
 *(ptrs+32) = 0x0
 *(ptrs+40) = 0x0
 *(ptrs+48) = 0x0
 *(ptrs+56) = 0x0
 *(ptrs+64) = 0x0
 *(ptrs+72) = 0x0
 *(ptrs+80) = 0x0
 *(ptrs+88) = 0x0
fatal error: throwOnGCWork

runtime stack:
runtime.throw(0x9d6590, 0xd)
	/workdir/go/src/runtime/panic.go:608 +0x72
runtime.(*gcWork).checkPut(0xc00002d270, 0x0, 0xc00002d2a8, 0x1, 0x200)
	/workdir/go/src/runtime/mgcwork.go:131 +0x10b
runtime.(*gcWork).putBatch(0xc00002d270, 0xc00002d2a8, 0x1, 0x200)
	/workdir/go/src/runtime/mgcwork.go:199 +0x5f
runtime.wbBufFlush1(0xc00002c000)
	/workdir/go/src/runtime/mwbbuf.go:277 +0x1c8
runtime.wbBufFlush.func1()
	/workdir/go/src/runtime/mwbbuf.go:200 +0x3a
runtime.systemstack(0x0)
	/workdir/go/src/runtime/asm_amd64.s:351 +0x66
runtime.mstart()
	/workdir/go/src/runtime/proc.go:1153

/cc @aclements @RLH

@ianlancetaylor

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commented Dec 14, 2018

I believe that @aclements is tracking that problem in #27993.

@minux

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commented Dec 14, 2018

@minux

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commented Dec 14, 2018

Assuming duplicate of #27993, closing.

@minux minux closed this Dec 14, 2018

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