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godoc segfaults #747

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petar opened this issue Apr 26, 2010 · 4 comments
Closed

godoc segfaults #747

petar opened this issue Apr 26, 2010 · 4 comments
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@petar
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petar commented Apr 26, 2010 

Before filing a bug, please check whether it has been fixed since
the latest release: run "hg pull -u" and retry what you did to
reproduce the problem.  Thanks.

What steps will reproduce the problem?

I run godoc using the following command line:

godoc -path=/Users/petar/tonika-git/src/pkg -http=:6060

When I navigate to the menu item "Source files" I get a
segfault. This does not happen if I use:

godoc -http=:6060

What is the expected output? What do you see instead?

panic: interface conversion: interface is int64, not uint64 [recovered]
    panic: interface conversion: interface is int64, not uint64

panic PC=0x39bab8
runtime.panic+0x7c /Users/petar/go/src/pkg/runtime/proc.c:1012
    runtime.panic(0x0, 0x39bb00)
template.checkError+0xa2 /Users/petar/go/src/pkg/template/template.go:891
    template.checkError(0x13d320, 0xa63690)
runtime.panic+0xb2 /Users/petar/go/src/pkg/runtime/proc.c:994
    runtime.panic(0x70166, 0x8dca78)
runtime.ifaceE2T+0xf5 /Users/petar/go/src/pkg/runtime/iface.c:282
    runtime.ifaceE2T(0x13d320, 0xa63690, 0x1009b8, 0x0)
main.timeFmt+0x29 /Users/petar/go/src/cmd/godoc/godoc.go:786
    main.timeFmt(0x1009b8, 0x128b50, 0x11853b24269d5a00, 0x39bc88, 0x39bc78, ...)
template.*Template·writeVariable+0xff /Users/petar/go/src/pkg/template/template.go:717
    template.*Template·writeVariable(0x93bbd0, 0x3aa900, 0x128b50, 0x11853b24269d5a00, 
0x448129, ...)
template.*Template·executeElement+0xd5 /Users/petar/go/src/pkg/template/template.go:739
    template.*Template·executeElement(0x43f9b0, 0x414450, 0x8dcab0, 0x414450, 0x1, ...)
template._func_002+0xaa /Users/petar/go/src/pkg/template/template.go:832
    template._func_002(0x43f9b0, 0x100000021, 0x8dcab0, 0x21, 0x11536, ...)
template.*Template·executeRepeated+0x39f
/Users/petar/go/src/pkg/template/template.go:838
    template.*Template·executeRepeated(0x8dcab0, 0x9c42a0, 0xa382c0, 0x8dcab0, 0xa38e00, ...)
template.*Template·executeElement+0x330 /Users/petar/go/src/pkg/template/template.go:745
    template.*Template·executeElement(0x43f9b0, 0x4152a0, 0x8dca80, 0x4152a0, 0x1, ...)
template.*Template·execute+0x36 /Users/petar/go/src/pkg/template/template.go:756
    template.*Template·execute(0x43f9b0, 0x12, 0x8dca80, 0x12, 0x8, ...)
template.*Template·Execute+0xeb /Users/petar/go/src/pkg/template/template.go:923
    template.*Template·Execute(0x43f9b0, 0x2600000000, 0x8dca80, 0xa38e00, 0x91e6d0, ...)
main.applyTemplate+0x71 /Users/petar/go/src/cmd/godoc/godoc.go:970
    main.applyTemplate(0x43f9b0, 0x108af0, 0x91e6c0, 0x93bbd0, 0x3aa900, ...)
main.serveDirectory+0x241 /Users/petar/go/src/cmd/godoc/godoc.go:1091
    main.serveDirectory(0x43f9b0, 0xc8a30, 0xb, 0x108af0, 0x91e6c0, ...)
main.serveFile+0x5aa /Users/petar/go/src/cmd/godoc/godoc.go:1143
    main.serveFile(0xdb86c0, 0x430a480, 0x92c660, 0x300000013)
http.HandlerFunc·ServeHTTP+0x28 /Users/petar/go/src/pkg/http/server.go:326
    http.HandlerFunc·ServeHTTP(0xdb86c0, 0x430a480, 0x59658, 0x6b4a, 0xdb86c0, ...)
http.*ServeMux·ServeHTTP+0x1fd /Users/petar/go/src/pkg/http/server.go:508
    http.*ServeMux·ServeHTTP(0x6b4a, 0xdb86c0, 0x430a480, 0x5, 0x6b01, ...)
http.*Conn·serve+0x7d /Users/petar/go/src/pkg/http/server.go:289
    http.*Conn·serve(0x38e300, 0xdb86c0)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

goroutine 90812 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
chanrecv+0x164 /Users/petar/go/src/pkg/runtime/chan.c:355
    chanrecv(0xdb86b0, 0xa06e00, 0xab2e8, 0x100000001, 0x1, ...)
runtime.chanrecv1+0x41 /Users/petar/go/src/pkg/runtime/chan.c:429
    runtime.chanrecv1(0xdb8660, 0xd30ca8)
net.*pollServer·WaitRead+0x49 /Users/petar/go/src/pkg/net/fd.go:272
    net.*pollServer·WaitRead(0xdb8660, 0x150ec80, 0x93091, 0x480400)
net.*netFD·Read+0x14d /Users/petar/go/src/pkg/net/fd.go:380
    net.*netFD·Read(0x480400, 0x150ec80, 0x100000001001, 0x0, 0x473a20, ...)
net.*TCPConn·Read+0x74 /Users/petar/go/src/pkg/net/tcpsock.go:92
    net.*TCPConn·Read(0x150ec80, 0x14e4000, 0x100000001000, 0x0, 0x473a20, ...)
bufio.*Reader·fill+0x155 /Users/petar/go/src/pkg/bufio/bufio.go:95
    bufio.*Reader·fill(0x38ea48, 0x14e4000)
bufio.*Reader·ReadSlice+0x1d5 /Users/petar/go/src/pkg/bufio/bufio.go:221
    bufio.*Reader·ReadSlice(0x47a8c0, 0xe6e00000000, 0x1d80a, 0xffffffff, 0x3b87, ...)
http.readLineBytes+0x39 /Users/petar/go/src/pkg/http/request.go:225
    http.readLineBytes(0x47a8c0, 0x1450a, 0x0, 0x0, 0x0, ...)
http.readLine+0x34 /Users/petar/go/src/pkg/http/request.go:249
    http.readLine(0x47a8c0, 0x0, 0x0, 0x0, 0x0, ...)
http.ReadRequest+0x61 /Users/petar/go/src/pkg/http/request.go:467
    http.ReadRequest(0x47a8c0, 0x0, 0x0, 0x0, 0x0, ...)
http.*Conn·readRequest+0x58 /Users/petar/go/src/pkg/http/server.go:82
    http.*Conn·readRequest(0x47a8c0, 0x3b87300, 0x0, 0x0, 0x0, ...)
http.*Conn·serve+0x1c /Users/petar/go/src/pkg/http/server.go:282
    http.*Conn·serve(0xdb8cc0, 0xdb8cc0)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

goroutine 111 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
runfinq+0x3f /Users/petar/go/src/pkg/runtime/mgc0.c:368
    runfinq()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

goroutine 4 [3]:
runtime.entersyscall+0x50 /Users/petar/go/src/pkg/runtime/proc.c:563
    runtime.entersyscall()
syscall.Syscall6+0x5 /Users/petar/go/src/pkg/syscall/asm_darwin_amd64.s:39
    syscall.Syscall6()
syscall.kevent+0x6d /Users/petar/go/src/pkg/syscall/zsyscall_darwin_amd64.go:108
    syscall.kevent(0x16b, 0x8, 0x0, 0x0, 0x8ec008, ...)
syscall.Kevent+0x99 /Users/petar/go/src/pkg/syscall/syscall_bsd.go:375
    syscall.Kevent(0x8, 0x0, 0x0, 0x8ec008, 0xa, ...)
net.*pollster·WaitFD+0xfb /Users/petar/go/src/pkg/net/fd_darwin.go:87
    net.*pollster·WaitFD(0x8, 0x0, 0x0, 0x8ec008, 0xa0000000a, ...)
net.*pollServer·Run+0x9e /Users/petar/go/src/pkg/net/fd.go:232
    net.*pollServer·Run(0x8ec000, 0x0)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

goroutine 3 [3]:
runtime.entersyscall+0x50 /Users/petar/go/src/pkg/runtime/proc.c:563
    runtime.entersyscall()
syscall.Syscall6+0x5 /Users/petar/go/src/pkg/syscall/asm_darwin_amd64.s:39
    syscall.Syscall6()
syscall.Select+0x5d /Users/petar/go/src/pkg/syscall/zsyscall_darwin_amd64.go:512
    syscall.Select(0x5d, 0x0, 0x0, 0x0, 0x0, ...)
syscall.Sleep+0x71 /Users/petar/go/src/pkg/syscall/syscall_bsd.go:145
    syscall.Sleep(0xd00000000, 0x0, 0x0, 0x0)
time.Sleep+0x3b /Users/petar/go/src/pkg/time/sleep.go:19
    time.Sleep(0xdf8475800, 0x5f2c8, 0x3945c0, 0x2)
main.indexer+0x410 /Users/petar/go/src/cmd/godoc/godoc.go:1414
    main.indexer()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

goroutine 1 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
chanrecv+0x164 /Users/petar/go/src/pkg/runtime/chan.c:355
    chanrecv(0x911050, 0x48d660, 0xab2e8, 0x100000001, 0x1, ...)
runtime.chanrecv1+0x41 /Users/petar/go/src/pkg/runtime/chan.c:429
    runtime.chanrecv1(0x911000, 0x397b50)
net.*pollServer·WaitRead+0x49 /Users/petar/go/src/pkg/net/fd.go:272
    net.*pollServer·WaitRead(0x911000, 0x8f60a0, 0x93b0e, 0x480400)
net.*netFD·accept+0x2f2 /Users/petar/go/src/pkg/net/fd.go:508
    net.*netFD·accept(0x480400, 0x8f60a0, 0x0, 0x0, 0x23, ...)
net.*TCPListener·AcceptTCP+0x5a /Users/petar/go/src/pkg/net/tcpsock.go:253
    net.*TCPListener·AcceptTCP(0x8f60a0, 0x990de, 0x0, 0x0, 0x0, ...)
net.*TCPListener·Accept+0x34 /Users/petar/go/src/pkg/net/tcpsock.go:263
    net.*TCPListener·Accept(0x47b788, 0x132cb, 0x0, 0x0, 0x8, ...)
http.Serve+0x66 /Users/petar/go/src/pkg/http/server.go:551
    http.Serve(0x47b788, 0x0, 0x0, 0x0, 0x0, ...)
http.ListenAndServe+0x8e /Users/petar/go/src/pkg/http/server.go:596
    http.ListenAndServe(0x480880, 0x47b788, 0x473810, 0x38e300, 0x480880, ...)
main.main+0x6f7 /Users/petar/go/src/cmd/godoc/main.go:285
    main.main()
mainstart+0xf /Users/petar/go/src/pkg/runtime/amd64/asm.s:60
    mainstart()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()


What is your $GOOS?  $GOARCH?
darwin, amd64

Which revision are you using?  (hg identify)
9c15ff12bfe3+ tip

Please provide any additional information below.
@griesemer
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Comment 1:

Owner changed to g...@golang.org.

Status changed to Accepted.

@petar
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petar commented Apr 27, 2010

Comment 2:

If you care to know, today's checkout (1ca43d937dbf+ tip) still segfaults
when I use godoc with a -path parameter and click on "Source files":
2010/04/27 10:20:21 bytes=68242824 footprint=129235192
panic: interface conversion: interface is int64, not uint64 [recovered]
    panic: interface conversion: interface is int64, not uint64
panic PC=0x3b1ab8
runtime.panic+0x7c /Users/petar/go/src/pkg/runtime/proc.c:1012
    runtime.panic(0x0, 0x3b1b00)
template.checkError+0xa2 /Users/petar/go/src/pkg/template/template.go:891
    template.checkError(0x1523e8, 0x11f6690)
runtime.panic+0xb2 /Users/petar/go/src/pkg/runtime/proc.c:994
    runtime.panic(0x4dfb1, 0x23a2988)
runtime.ifaceE2T+0xf5 /Users/petar/go/src/pkg/runtime/iface.c:282
    runtime.ifaceE2T(0x1523e8, 0x11f6690, 0x1132c8, 0x0)
main.timeFmt+0x29 /Users/petar/go/src/cmd/godoc/godoc.go:787
    main.timeFmt(0x1132c8, 0x13cb38, 0x11853b24269d5a00, 0x3b1c88, 0x3b1c78, ...)
template.*Template·writeVariable+0xff /Users/petar/go/src/pkg/template/template.go:717
    template.*Template·writeVariable(0xab9ab0, 0x13ff060, 0x13cb38, 0x11853b24269d5a00, 0x46e8d9, 
...)
template.*Template·executeElement+0xd5 /Users/petar/go/src/pkg/template/template.go:739
    template.*Template·executeElement(0x458a00, 0x3c60c0, 0x23a29c0, 0x3c60c0, 0x1, ...)
template._func_002+0xaa /Users/petar/go/src/pkg/template/template.go:832
    template._func_002(0x458a00, 0x100000021, 0x23a29c0, 0x21, 0x139ca, ...)
template.*Template·executeRepeated+0x39f
/Users/petar/go/src/pkg/template/template.go:838
    template.*Template·executeRepeated(0x23a29c0, 0x2086720, 0x1372520, 0x23a29c0, 0x1372500, ...)
template.*Template·executeElement+0x330 /Users/petar/go/src/pkg/template/template.go:745
    template.*Template·executeElement(0x458a00, 0x42bc00, 0x23a2990, 0x42bc00, 0x1, ...)
template.*Template·execute+0x36 /Users/petar/go/src/pkg/template/template.go:756
    template.*Template·execute(0x458a00, 0x12, 0x23a2990, 0x12, 0x8, ...)
template.*Template·Execute+0xeb /Users/petar/go/src/pkg/template/template.go:923
    template.*Template·Execute(0x458a00, 0x2600000000, 0x23a2990, 0x1372500, 0x300aa80, ...)
main.applyTemplate+0x71 /Users/petar/go/src/cmd/godoc/godoc.go:975
    main.applyTemplate(0x458a00, 0x11b728, 0x300aa70, 0xab9ab0, 0x13ff060, ...)
main.serveDirectory+0x241 /Users/petar/go/src/cmd/godoc/godoc.go:1096
    main.serveDirectory(0x458a00, 0xd5898, 0xb, 0x11b728, 0x300aa70, ...)
main.serveFile+0x5aa /Users/petar/go/src/cmd/godoc/godoc.go:1148
    main.serveFile(0x1fc2de0, 0x44c4300, 0x1096b40, 0x300000013)
http.HandlerFunc·ServeHTTP+0x28 /Users/petar/go/src/pkg/http/server.go:326
    http.HandlerFunc·ServeHTTP(0x1fc2de0, 0x44c4300, 0x33048, 0x8fd4, 0x1fc2de0, ...)
http.*ServeMux·ServeHTTP+0x1fd /Users/petar/go/src/pkg/http/server.go:508
    http.*ServeMux·ServeHTTP(0x8fd4, 0x1fc2de0, 0x44c4300, 0x5, 0x8f01, ...)
http.*Conn·serve+0x7d /Users/petar/go/src/pkg/http/server.go:289
    http.*Conn·serve(0x3a4300, 0x1fc2de0)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()
goroutine 163046 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
chanrecv+0x164 /Users/petar/go/src/pkg/runtime/chan.c:355
    chanrecv(0x18bb530, 0x1501660, 0xb6fb8, 0x100000001, 0x1, ...)
runtime.chanrecv1+0x41 /Users/petar/go/src/pkg/runtime/chan.c:429
    runtime.chanrecv1(0x18bb4e0, 0xa8ac90)
net.*pollServer·WaitRead+0x49 /Users/petar/go/src/pkg/net/fd.go:279
    net.*pollServer·WaitRead(0x18bb4e0, 0x34ffc80, 0x9c365, 0x8f5040)
net.*netFD·Read+0x143 /Users/petar/go/src/pkg/net/fd.go:382
    net.*netFD·Read(0x8f5040, 0x34ffc80, 0x100000001000, 0x23ffffffff, 0x0, ...)
net.*TCPConn·Read+0x74 /Users/petar/go/src/pkg/net/tcpsock.go:89
    net.*TCPConn·Read(0x34ffc80, 0x36b3000, 0x100000001000, 0x0, 0x0, ...)
bufio.*Reader·fill+0x155 /Users/petar/go/src/pkg/bufio/bufio.go:410
    bufio.*Reader·fill(0xec84f8, 0x36b3000)
bufio.*Reader·ReadSlice+0x1d5 /Users/petar/go/src/pkg/bufio/bufio.go:416
    bufio.*Reader·ReadSlice(0x115e640, 0xe5500000000, 0x1fe0a, 0xffffffff, 0x3c6c, ...)
http.readLineBytes+0x39 /Users/petar/go/src/pkg/http/request.go:225
    http.readLineBytes(0x115e640, 0x16a0a, 0x0, 0x0, 0x0, ...)
http.readLine+0x34 /Users/petar/go/src/pkg/http/request.go:249
    http.readLine(0x115e640, 0x0, 0x0, 0x0, 0x0, ...)
http.ReadRequest+0x61 /Users/petar/go/src/pkg/http/request.go:467
    http.ReadRequest(0x115e640, 0x0, 0x0, 0x0, 0x0, ...)
http.*Conn·readRequest+0x58 /Users/petar/go/src/pkg/http/server.go:82
    http.*Conn·readRequest(0x115e640, 0x3c6c840, 0x0, 0x0, 0x0, ...)
http.*Conn·serve+0x1c /Users/petar/go/src/pkg/http/server.go:282
    http.*Conn·serve(0x18bb660, 0x18bb660)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()
goroutine 36 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
runfinq+0x3f /Users/petar/go/src/pkg/runtime/mgc0.c:368
    runfinq()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()
goroutine 4 [3]:
runtime.entersyscall+0x50 /Users/petar/go/src/pkg/runtime/proc.c:563
    runtime.entersyscall()
syscall.Syscall6+0x5 /Users/petar/go/src/pkg/syscall/asm_darwin_amd64.s:39
    syscall.Syscall6()
syscall.kevent+0x6d /Users/petar/go/src/pkg/syscall/zsyscall_darwin_amd64.go:108
    syscall.kevent(0x16b, 0x8, 0x0, 0x0, 0x91c008, ...)
syscall.Kevent+0x99 /Users/petar/go/src/pkg/syscall/syscall_bsd.go:375
    syscall.Kevent(0x8, 0x0, 0x0, 0x91c008, 0xa, ...)
net.*pollster·WaitFD+0xfb /Users/petar/go/src/pkg/net/fd_darwin.go:87
    net.*pollster·WaitFD(0x8, 0x0, 0x0, 0x91c008, 0xa0000000a, ...)
net.*pollServer·Run+0x9e /Users/petar/go/src/pkg/net/fd.go:239
    net.*pollServer·Run(0x91c000, 0x0)
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()
goroutine 3 [3]:
runtime.entersyscall+0x50 /Users/petar/go/src/pkg/runtime/proc.c:563
    runtime.entersyscall()
syscall.Syscall6+0x5 /Users/petar/go/src/pkg/syscall/asm_darwin_amd64.s:39
    syscall.Syscall6()
syscall.Select+0x5d /Users/petar/go/src/pkg/syscall/zsyscall_darwin_amd64.go:512
    syscall.Select(0x5d, 0x0, 0x0, 0x0, 0x0, ...)
syscall.Sleep+0x71 /Users/petar/go/src/pkg/syscall/syscall_bsd.go:145
    syscall.Sleep(0xd00000000, 0x0, 0x0, 0x0)
time.Sleep+0x3b /Users/petar/go/src/pkg/time/sleep.go:19
    time.Sleep(0xdf8475800, 0x38e20, 0x3aa5c0, 0x2)
main.indexer+0x410 /Users/petar/go/src/cmd/godoc/godoc.go:1419
    main.indexer()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()
goroutine 1 [4]:
gosched+0x4e /Users/petar/go/src/pkg/runtime/proc.c:542
    gosched()
chanrecv+0x164 /Users/petar/go/src/pkg/runtime/chan.c:355
    chanrecv(0x91a170, 0x90c500, 0xb6fb8, 0x100000001, 0x1, ...)
runtime.chanrecv1+0x41 /Users/petar/go/src/pkg/runtime/chan.c:429
    runtime.chanrecv1(0x91a120, 0x3adb50)
net.*pollServer·WaitRead+0x49 /Users/petar/go/src/pkg/net/fd.go:279
    net.*pollServer·WaitRead(0x91a120, 0x8d81e0, 0x9cfa0, 0x8f5040)
net.*netFD·accept+0x2f2 /Users/petar/go/src/pkg/net/fd.go:528
    net.*netFD·accept(0x8f5040, 0x8d81e0, 0x0, 0x0, 0x23, ...)
net.*TCPListener·AcceptTCP+0x5a /Users/petar/go/src/pkg/net/tcpsock.go:240
    net.*TCPListener·AcceptTCP(0x8d81e0, 0xa2751, 0x0, 0x0, 0x0, ...)
net.*TCPListener·Accept+0x34 /Users/petar/go/src/pkg/net/tcpsock.go:250
    net.*TCPListener·Accept(0x8d0400, 0x1575f, 0x0, 0x0, 0x8, ...)
http.Serve+0x66 /Users/petar/go/src/pkg/http/server.go:551
    http.Serve(0x8d0400, 0x0, 0x0, 0x0, 0x0, ...)
http.ListenAndServe+0x8e /Users/petar/go/src/pkg/http/server.go:596
    http.ListenAndServe(0x8f5800, 0x8d0400, 0x8cf060, 0x3a4300, 0x8f5800, ...)
main.main+0x6f7 /Users/petar/go/src/cmd/godoc/main.go:285
    main.main()
mainstart+0xf /Users/petar/go/src/pkg/runtime/amd64/asm.s:60
    mainstart()
goexit /Users/petar/go/src/pkg/runtime/proc.c:145
    goexit()

@griesemer
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Comment 3:

Fix pending ( http://golang.org/cl/1010042/show ).

Status changed to Started.

@griesemer
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Comment 4:

This issue was closed by revision 23c0644.

Status changed to Fixed.

@golang golang locked and limited conversation to collaborators Jun 24, 2016
This issue was closed.
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