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runtime: exception at unknown PC on Windows when using webroot anti-virus #41138

Closed wa2nfn closed 4 years ago

wa2nfn commented 4 years ago

What version of Go are you using (go version)?

$ go version 1.15 windows amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\owner\AppData\Local\go-build
set GOENV=C:\Users\owner\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\owner\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\owner\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=c:\go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=c:\go\pkg\tool\windows_amd64
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\owner\AppData\Local\Temp\go-build564260466=/tmp/go-build -gno-record-gcc-switches

What did you do?

Windows did an update. I updated to go 1.15

windows 1904.450

I built and ran my code which has NOT changed. It appeared ok. Then intermittently got the runtime exception about unknown pc. I rebuilt, and ran with as: go run, go build, go build -ldflags="-s -w" (my normal build) it SEEMED more likely to fail with -w. It SEEMED to work until the build with the -w flag, then again intermittently failed without any of the run/build approaches. Decided to eliminate my code to see if it was the env, or my pc memory.

So I wrote std HelloWorld.go and still intermittently got the issue.

Below is latest run of my code built with both flags, first run OK, Enter the cmd again and this time failure as shown below.

What did you expect to see?

$ ./mcpt.exe

mcpt version: 1.2.1 08/23/2020 Copyright 2020

Error: Either you forgot a required option, or you are a New User.

    New User -
            run: mcpt -help=tour
            or

            run: mcpt -help
            to review options

            or see the MCPT User Guide.

$ go version go version go1.15 windows/amd64

owner@Mr-Finn MINGW64 ~/TTT/NEW/MCPT $ go env set GOMOD= set CGO_CFLAGS=-g -O2 set CGO_CPPFLAGS= set CGO_CXXFLAGS=-g -O2 set CGO_FFLAGS=-g -O2 set CGO_LDFLAGS=-g -O2 set PKG_CONFIG=pkg-config set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\owner\AppData\Local\Temp\go-build280805674=/tmp/go-build -gno-record-gcc-switches

What did you see instead?

$ ./mcpt.exe Exception 0xc0000005 0x0 0x7ffa795d0fff 0xa50000 PC=0xa50000

runtime: unknown pc 0xa50000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000170000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffa76f29f38 000000000092e780: 0000000000ab42c0 00007ffa793f46ce 000000000092e790: 00007ffa793d00e8 0000000000af6b20 000000000092e7a0: 00007ffa76f29f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000ab42c0 0000000000000000 000000000092e7d0: 0000000000aeaf20 006c006400050005 000000000092e7e0: 00007ffa76f29f32 0000000000000000 000000000092e7f0: 00007ffa00000000 00007ffa793d00e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffa793f3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000af6b20 00007ffa79520f00 000000000092e870: 0000000000ab42c0 00007ffa79523520 000000000092e880: 000000000000097d 00007ffa7697ccb8 000000000092e890: 00007ffa7697a148 00007ffa79520f28 000000000092e8a0: 00007ffa79533d4f 00007ffa76970000 000000000092e8b0: 00007ffa79525b14 00007ffa79450aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000af5f40 0000000000000044 000000000092e8f0: 0000000000000003 00007ffa7953a3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000aeaf20 00007ffa79431448 runtime: unknown pc 0xa50000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000170000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffa76f29f38 000000000092e780: 0000000000ab42c0 00007ffa793f46ce 000000000092e790: 00007ffa793d00e8 0000000000af6b20 000000000092e7a0: 00007ffa76f29f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000ab42c0 0000000000000000 000000000092e7d0: 0000000000aeaf20 006c006400050005 000000000092e7e0: 00007ffa76f29f32 0000000000000000 000000000092e7f0: 00007ffa00000000 00007ffa793d00e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffa793f3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000af6b20 00007ffa79520f00 000000000092e870: 0000000000ab42c0 00007ffa79523520 000000000092e880: 000000000000097d 00007ffa7697ccb8 000000000092e890: 00007ffa7697a148 00007ffa79520f28 000000000092e8a0: 00007ffa79533d4f 00007ffa76970000 000000000092e8b0: 00007ffa79525b14 00007ffa79450aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000af5f40 0000000000000044 000000000092e8f0: 0000000000000003 00007ffa7953a3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000aeaf20 00007ffa79431448 rax 0x7ffa7697d85c rbx 0x7ffa7697d85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffa769a9f00 rsp 0x92e820 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffa7697d85c r15 0x7ffa793d0000 rip 0xa50000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

ianlancetaylor commented 4 years ago

CC @alexbrainman

davecheney commented 4 years ago

I have a feeling we had a report of a very similar issue about two weeks ago but search 🤷

alexbrainman commented 4 years ago

I have a feeling we had a report of a very similar issue about two weeks ago but search 🤷

@davecheney do you mean #40401 or #40469 ? Does not look very similar to me.

@wa2nfn how much memory do you have in your PC? Also you did not show us the source code of your program. What does it look like? I would like to try to reproduce this issue myself. How can I do it?

Thank you.

Alex

networkimprov commented 4 years ago

Alex, perhaps due to ASLR?

alexbrainman commented 4 years ago

Alex, perhaps due to ASLR?

I would not know.

Alex

networkimprov commented 4 years ago

@wa2nfn maybe try go build -buildmode=exe ...

wa2nfn commented 4 years ago

1- I have 2 G memory, I was suspect of memory or harddisk. I performed both tests from microsoft. Last night harddisk screen CLAIMED disk was good, but I ran anyway. The scan found and repaired some issues. I ran about 7 tests with different flags and it seemed ok. ANd then of course it failed as before. This failure with just: ./mcpt -help=tutors but it is simply a bunch of print statements, while one of my tests that passed reads in a 60K english words and stores them in a map - so lack of ram doesn't seem likely to me.

2- below is latest stack trace. I'm new to GO, but notice the lines I marked below, is the "<" a clue to anything?

$ ./mcpt -help=tutors Exception 0xc0000005 0x0 0x7ffbca290fff 0x9f0000 PC=0x9f0000

runtime: unknown pc 0x9f0000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffbc7b09f38 000000000092e780: 0000000000a14300 00007ffbca0b46ce 000000000092e790: 00007ffbca0900e8 0000000000a55cf0 000000000092e7a0: 00007ffbc7b09f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000a14300 0000000000000000 000000000092e7d0: 0000000000a4dda0 006c006400050005 000000000092e7e0: 00007ffbc7b09f32 0000000000000000 000000000092e7f0: 00007ffb00000000 00007ffbca0900e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffbca0b3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000a55cf0 00007ffbca1e0f00 000000000092e870: 0000000000a14300 00007ffbca1e3520 000000000092e880: 000000000000097d 00007ffbc763ccb8 000000000092e890: 00007ffbc763a148 00007ffbca1e0f28 000000000092e8a0: 00007ffbca1f3d4f 00007ffbc7630000 000000000092e8b0: 00007ffbca1e5b14 00007ffbca110aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000a555d0 0000000000000044 000000000092e8f0: 0000000000000003 00007ffbca1fa3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000a4dda0 00007ffbca0f1448 runtime: unknown pc 0x9f0000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffbc7b09f38 000000000092e780: 0000000000a14300 00007ffbca0b46ce 000000000092e790: 00007ffbca0900e8 0000000000a55cf0 000000000092e7a0: 00007ffbc7b09f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000a14300 0000000000000000 000000000092e7d0: 0000000000a4dda0 006c006400050005 000000000092e7e0: 00007ffbc7b09f32 0000000000000000 000000000092e7f0: 00007ffb00000000 00007ffbca0900e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffbca0b3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000a55cf0 00007ffbca1e0f00 000000000092e870: 0000000000a14300 00007ffbca1e3520 000000000092e880: 000000000000097d 00007ffbc763ccb8 000000000092e890: 00007ffbc763a148 00007ffbca1e0f28 000000000092e8a0: 00007ffbca1f3d4f 00007ffbc7630000 000000000092e8b0: 00007ffbca1e5b14 00007ffbca110aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000a555d0 0000000000000044 000000000092e8f0: 0000000000000003 00007ffbca1fa3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000a4dda0 00007ffbca0f1448 rax 0x7ffbc763d85c rbx 0x7ffbc763d85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffbc7669f00 rsp 0x92e820 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffbc763d85c r15 0x7ffbca090000 rip 0x9f0000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

2 source files attached, I know this should have been decomposed into many more files and I relied on too many global variables but its my second program and it was evolving as I learned (that might be debatable) and thought of features.

On Mon, Aug 31, 2020 at 6:06 AM Liam notifications@github.com wrote:

@wa2nfn https://github.com/wa2nfn maybe try go build -buildmode=exe ...

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/golang/go/issues/41138#issuecomment-683688205, or unsubscribe https://github.com/notifications/unsubscribe-auth/AMNS5U2QRPJCOM4T762EKIDSDNY3BANCNFSM4QPXR3RA .

wa2nfn commented 4 years ago

recompiled as: go build -ldflags="-s -w" -buildmode=exe mcpt.go callSign.go

or without ldflags same thing

executing between 4-6 times in succession: ./mcpt -help=tutors and I get the run time error, again its NOT only this simple option, but just to narrow down a reproducible case.

Note, since I've not had much runtime error experience, I'll also mention that after the stack trace the window is hung. I had to close with the X (not ctrl-c, ctrl-d), and the popup that says the program is still running listed \ProgramData\mingw - I'm clueless maybe this is a windows thing.

Tnx Bill

On Mon, Aug 31, 2020 at 11:55 AM Bill Lanahan wa2nfn@gmail.com wrote:

1- I have 2 G memory, I was suspect of memory or harddisk. I performed both tests from microsoft. Last night harddisk screen CLAIMED disk was good, but I ran anyway. The scan found and repaired some issues. I ran about 7 tests with different flags and it seemed ok. ANd then of course it failed as before. This failure with just: ./mcpt -help=tutors but it is simply a bunch of print statements, while one of my tests that passed reads in a 60K english words and stores them in a map - so lack of ram doesn't seem likely to me.

2- below is latest stack trace. I'm new to GO, but notice the lines I marked below, is the "<" a clue to anything?

$ ./mcpt -help=tutors Exception 0xc0000005 0x0 0x7ffbca290fff 0x9f0000 PC=0x9f0000

runtime: unknown pc 0x9f0000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffbc7b09f38 000000000092e780: 0000000000a14300 00007ffbca0b46ce 000000000092e790: 00007ffbca0900e8 0000000000a55cf0 000000000092e7a0: 00007ffbc7b09f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000a14300 0000000000000000 000000000092e7d0: 0000000000a4dda0 006c006400050005 000000000092e7e0: 00007ffbc7b09f32 0000000000000000 000000000092e7f0: 00007ffb00000000 00007ffbca0900e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffbca0b3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000a55cf0 00007ffbca1e0f00 000000000092e870: 0000000000a14300 00007ffbca1e3520 000000000092e880: 000000000000097d 00007ffbc763ccb8 000000000092e890: 00007ffbc763a148 00007ffbca1e0f28 000000000092e8a0: 00007ffbca1f3d4f 00007ffbc7630000 000000000092e8b0: 00007ffbca1e5b14 00007ffbca110aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000a555d0 0000000000000044 000000000092e8f0: 0000000000000003 00007ffbca1fa3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000a4dda0 00007ffbca0f1448 runtime: unknown pc 0x9f0000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffbc7b09f38 000000000092e780: 0000000000a14300 00007ffbca0b46ce 000000000092e790: 00007ffbca0900e8 0000000000a55cf0 000000000092e7a0: 00007ffbc7b09f32 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000a14300 0000000000000000 000000000092e7d0: 0000000000a4dda0 006c006400050005 000000000092e7e0: 00007ffbc7b09f32 0000000000000000 000000000092e7f0: 00007ffb00000000 00007ffbca0900e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffbca0b3783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000a55cf0 00007ffbca1e0f00 000000000092e870: 0000000000a14300 00007ffbca1e3520 000000000092e880: 000000000000097d 00007ffbc763ccb8 000000000092e890: 00007ffbc763a148 00007ffbca1e0f28 000000000092e8a0: 00007ffbca1f3d4f 00007ffbc7630000 000000000092e8b0: 00007ffbca1e5b14 00007ffbca110aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000a555d0 0000000000000044 000000000092e8f0: 0000000000000003 00007ffbca1fa3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000a4dda0 00007ffbca0f1448 rax 0x7ffbc763d85c rbx 0x7ffbc763d85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffbc7669f00 rsp 0x92e820 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffbc763d85c r15 0x7ffbca090000 rip 0x9f0000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

2 source files attached, I know this should have been decomposed into many more files and I relied on too many global variables but its my second program and it was evolving as I learned (that might be debatable) and thought of features.

On Mon, Aug 31, 2020 at 6:06 AM Liam notifications@github.com wrote:

@wa2nfn https://github.com/wa2nfn maybe try go build -buildmode=exe ...

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/golang/go/issues/41138#issuecomment-683688205, or unsubscribe https://github.com/notifications/unsubscribe-auth/AMNS5U2QRPJCOM4T762EKIDSDNY3BANCNFSM4QPXR3RA .

networkimprov commented 4 years ago

Would you be able to try it on a different Windows box running the same OS?

EDIT: Also it would help if you can post the code required for -help=tutors

wa2nfn commented 4 years ago

The code worked fine on another windows pc

I now suspect that the recent add of Webroot antivirus damaged my pc, which had now been made worse

Please close the ticket while I rebuild my pc. Sorry for the red herring

Bill

On Aug 31, 2020, at 4:28 PM, Liam notifications@github.com wrote:

 Would you be able to try it on a different Windows box running the same OS?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

wa2nfn commented 4 years ago

Problem is back. Since last email, because I suspected it was my PC:

PC restored to windows 8.1 and then upgraded from microsoft to Windows 10Home Edition 10.0.1901 Build 19041

Reloaded all app from official sites: go 1.15, bash. I am building and running windows exe. Executing in a Windows terminal window.

As before I can run my code with a number of different options some create a large map and slice but other than than its parse, generate random numbers, create text and print it.

Again after a half dozens executions one after the other I will crash with the stack trace that ALWAYS has a complaint about a PC.

This build was again using ldflags -s -w

networkimprov commented 4 years ago

cc @randall77 @aclements @prattmic

Possibly same as #40878

networkimprov commented 4 years ago

@wa2nfn try this and post its output (assuming the Windows command prompt)

set GOTRACEBACK=system
./mcpt.exe ...
wa2nfn commented 4 years ago

It will be later tonight, I’m on the road

1 - I assume going to get output you want, and it needs to be a failure case?

2 - do you want the buildmode=exe since that’s another variable or just the ldflags I’ve used for a year?

Bill

On Sep 6, 2020, at 1:07 PM, Liam notifications@github.com wrote:

 @wa2nfn try this -- assuming the Windows command prompt...

set GOTRACEBACK=system ./mcpt ... — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

networkimprov commented 4 years ago

We want output for a failure, yes.

A second pass with -buildmode=exe could be useful if it produces a different state on failure.

wa2nfn commented 4 years ago

I'm skeptical of the cmd you gave me: set GOTRACEBACK=system ./mcpt..... It executes too fast, nothing comes to STDOUT/STDERR, and if I use jibberish instead of mcpt it still acts as if I typed: echo ""

I did capture another output (attached), they are less frequent but I I di have about 3 (maybe some windows auto update did something - a wild guess).

I'll keep trying.

Tnx Bill

file name meant a stacktrace without having the set GOTRACEBACK etc.

On Sat, Sep 5, 2020 at 7:25 PM Liam notifications@github.com wrote:

cc @randall77 https://github.com/randall77 @aclements https://github.com/aclements

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:\Users\wa2nf_000\Downloads> mcpt -in=words.txt -repeat=2 -num=20 Exception 0xc0000005 0x0 0x7ffde4dd0fff 0x20e2e4f0000 PC=0x20e2e4f0000

runtime: unknown pc 0x20e2e4f0000 stack: frame={sp:0xa40f3fe820, fp:0x0} stack=[0x0,0xa40f3fff00) 000000a40f3fe720: 000000a40f3fe768 000000a40f3fe790 000000a40f3fe730: 000000a40f3fe758 000000a40f3fe750 000000a40f3fe740: 000000a40f3fe754 0000020e2e210000 000000a40f3fe750: 0000000000000000 0000000000000000 000000a40f3fe760: 0000000000000000 0000000000000005 000000a40f3fe770: 000000a40f3fe8b8 00007ffde29e9f28 000000a40f3fe780: 0000020e2e272bb0 00007ffde4bf46ce 000000a40f3fe790: 00007ffde4bd00e8 0000020e2e286f50 000000a40f3fe7a0: 00007ffde29e9f22 000000a40f3fe7f0 000000a40f3fe7b0: 004f0044004e0049 0053005c00530057 000000a40f3fe7c0: 0000020e2e272bb0 0000000000000000 000000a40f3fe7d0: 0000020e2e286e70 006c006400050005 000000a40f3fe7e0: 00007ffde29e9f22 0000000000000000 000000a40f3fe7f0: 00007ffd00000000 00007ffde4bd00e8 000000a40f3fe800: 0000000000000000 0000000000000000 000000a40f3fe810: 0000000000000001 00007ffde4bf3783 000000a40f3fe820: <0000020e00000001 0000000000000000 000000a40f3fe830: 0000000000000000 000000a40f3fe928 000000a40f3fe840: 0000000000000000 0000000000000000 000000a40f3fe850: 0000000000000000 0000000000000000 000000a40f3fe860: 0000020e2e286f50 00007ffde4d20ef0 000000a40f3fe870: 0000020e2e272bb0 00007ffde4d23510 000000a40f3fe880: 000000000000097d 00007ffde21eccb8 000000a40f3fe890: 00007ffde21ea148 00007ffde4d20f18 000000a40f3fe8a0: 00007ffde4d33d3f 00007ffde21e0000 000000a40f3fe8b0: 00007ffde4d25b04 00007ffde4c50aa0 000000a40f3fe8c0: 0000000000000000 0000000000000000 000000a40f3fe8d0: 0000000000000000 0000000000000000 000000a40f3fe8e0: 0000020e2e29d9f0 0000000000000040 000000a40f3fe8f0: 0000000000000003 00007ffde4d3a3f0 000000a40f3fe900: 0000000000000001 000000a40f3feb00 000000a40f3fe910: 0000020e2e286e70 00007ffde4c31448 runtime: unknown pc 0x20e2e4f0000 stack: frame={sp:0xa40f3fe820, fp:0x0} stack=[0x0,0xa40f3fff00) 000000a40f3fe720: 000000a40f3fe768 000000a40f3fe790 000000a40f3fe730: 000000a40f3fe758 000000a40f3fe750 000000a40f3fe740: 000000a40f3fe754 0000020e2e210000 000000a40f3fe750: 0000000000000000 0000000000000000 000000a40f3fe760: 0000000000000000 0000000000000005 000000a40f3fe770: 000000a40f3fe8b8 00007ffde29e9f28 000000a40f3fe780: 0000020e2e272bb0 00007ffde4bf46ce 000000a40f3fe790: 00007ffde4bd00e8 0000020e2e286f50 000000a40f3fe7a0: 00007ffde29e9f22 000000a40f3fe7f0 000000a40f3fe7b0: 004f0044004e0049 0053005c00530057 000000a40f3fe7c0: 0000020e2e272bb0 0000000000000000 000000a40f3fe7d0: 0000020e2e286e70 006c006400050005 000000a40f3fe7e0: 00007ffde29e9f22 0000000000000000 000000a40f3fe7f0: 00007ffd00000000 00007ffde4bd00e8 000000a40f3fe800: 0000000000000000 0000000000000000 000000a40f3fe810: 0000000000000001 00007ffde4bf3783 000000a40f3fe820: <0000020e00000001 0000000000000000 000000a40f3fe830: 0000000000000000 000000a40f3fe928 000000a40f3fe840: 0000000000000000 0000000000000000 000000a40f3fe850: 0000000000000000 0000000000000000 000000a40f3fe860: 0000020e2e286f50 00007ffde4d20ef0 000000a40f3fe870: 0000020e2e272bb0 00007ffde4d23510 000000a40f3fe880: 000000000000097d 00007ffde21eccb8 000000a40f3fe890: 00007ffde21ea148 00007ffde4d20f18 000000a40f3fe8a0: 00007ffde4d33d3f 00007ffde21e0000 000000a40f3fe8b0: 00007ffde4d25b04 00007ffde4c50aa0 000000a40f3fe8c0: 0000000000000000 0000000000000000 000000a40f3fe8d0: 0000000000000000 0000000000000000 000000a40f3fe8e0: 0000020e2e29d9f0 0000000000000040 000000a40f3fe8f0: 0000000000000003 00007ffde4d3a3f0 000000a40f3fe900: 0000000000000001 000000a40f3feb00 000000a40f3fe910: 0000020e2e286e70 00007ffde4c31448 rax 0x7ffde21ed85c rbx 0x7ffde21ed85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffde2219f00 rsp 0xa40f3fe820 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffde21ed85c r15 0x7ffde4bd0000 rip 0x20e2e4f0000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

networkimprov commented 4 years ago

skeptical of the cmd you gave me: set GOTRACEBACK=system ./mcpt.....

Just to clarify, it's two separate commands, and the "..." was meant as a reference to whatever params you've used previously.

wa2nfn commented 4 years ago

:##### this built with: go build -ldflags="-s -w" mcpt.go callSign.go

OK did the set GOTRACKBACK, followed by the same execution: .\mcpt -help=tutors first 4 were fine then the trace below:

C:\Users\wa2nf_000\Downloads>.\mcpt.exe -help=tutors Exception 0xc0000005 0x0 0x7ffece200fff 0x1b0f3650000 PC=0x1b0f3650000

runtime: unknown pc 0x1b0f3650000 stack: frame={sp:0x69dbdff1d0, fp:0x0} stack=[0x0,0x69dbdffa30) 00000069dbdff0d0: 00000069dbdff118 00000069dbdff140 00000069dbdff0e0: 00000069dbdff108 00000069dbdff100 00000069dbdff0f0: 00000069dbdff104 000001b0ce230000 00000069dbdff100: 0000000000000000 0000000000000000 00000069dbdff110: 0000000000000000 0000000000000005 00000069dbdff120: 00000069dbdff268 00007ffeccc90395 00000069dbdff130: 000001b0ce2c2b30 00007ffecec746ce 00000069dbdff140: 00007ffecec500e8 000001b0ce2eb8d0 00000069dbdff150: 00007ffeccc9038f 00000069dbdff1a0 00000069dbdff160: 004f0044004e0049 0053005c00530057 00000069dbdff170: 000001b0ce2c2b30 0000000000000000 00000069dbdff180: 000001b0ce2d4380 0066006f00050005 00000069dbdff190: 00007ffeccc9038f 0000000000000000 00000069dbdff1a0: 00007ffe00000000 00007ffece1400f0 00000069dbdff1b0: 0000000000000000 0000000000000000 00000069dbdff1c0: 0000000000000001 00007ffecec73783 00000069dbdff1d0: <000001b000000001 0000000000000000 00000069dbdff1e0: 0000000000000000 00000069dbdff2d8 00000069dbdff1f0: 0000000000000000 0000000000000000 00000069dbdff200: 0000000000000000 0000000000000000 00000069dbdff210: 000001b0ce2eb8d0 00007ffece1d8f10 00000069dbdff220: 000001b0ce2c3180 00007ffece1da8b4 00000069dbdff230: 000000000000065f 00007ffecc4dd2e0 00000069dbdff240: 00007ffecc4a96b0 00007ffece1d8f38 00000069dbdff250: 00007ffece1e6d54 00007ffecc3f0000 00000069dbdff260: 00007ffece1dc230 00007ffececc0060 00000069dbdff270: 0000000000000000 0000000000000000 00000069dbdff280: 0000000000000000 0000000000000000 00000069dbdff290: 0000000000000000 0000000000000040 00000069dbdff2a0: 0000000000000004 00007ffecedba3f0 00000069dbdff2b0: 0000000000000001 00000069dbdff400 00000069dbdff2c0: 000001b0ce2d4380 00007ffececb1448 runtime: unknown pc 0x1b0f3650000 stack: frame={sp:0x69dbdff1d0, fp:0x0} stack=[0x0,0x69dbdffa30) 00000069dbdff0d0: 00000069dbdff118 00000069dbdff140 00000069dbdff0e0: 00000069dbdff108 00000069dbdff100 00000069dbdff0f0: 00000069dbdff104 000001b0ce230000 00000069dbdff100: 0000000000000000 0000000000000000 00000069dbdff110: 0000000000000000 0000000000000005 00000069dbdff120: 00000069dbdff268 00007ffeccc90395 00000069dbdff130: 000001b0ce2c2b30 00007ffecec746ce 00000069dbdff140: 00007ffecec500e8 000001b0ce2eb8d0 00000069dbdff150: 00007ffeccc9038f 00000069dbdff1a0 00000069dbdff160: 004f0044004e0049 0053005c00530057 00000069dbdff170: 000001b0ce2c2b30 0000000000000000 00000069dbdff180: 000001b0ce2d4380 0066006f00050005 00000069dbdff190: 00007ffeccc9038f 0000000000000000 00000069dbdff1a0: 00007ffe00000000 00007ffece1400f0 00000069dbdff1b0: 0000000000000000 0000000000000000 00000069dbdff1c0: 0000000000000001 00007ffecec73783 00000069dbdff1d0: <000001b000000001 0000000000000000 00000069dbdff1e0: 0000000000000000 00000069dbdff2d8 00000069dbdff1f0: 0000000000000000 0000000000000000 00000069dbdff200: 0000000000000000 0000000000000000 00000069dbdff210: 000001b0ce2eb8d0 00007ffece1d8f10 00000069dbdff220: 000001b0ce2c3180 00007ffece1da8b4 00000069dbdff230: 000000000000065f 00007ffecc4dd2e0 00000069dbdff240: 00007ffecc4a96b0 00007ffece1d8f38 00000069dbdff250: 00007ffece1e6d54 00007ffecc3f0000 00000069dbdff260: 00007ffece1dc230 00007ffececc0060 00000069dbdff270: 0000000000000000 0000000000000000 00000069dbdff280: 0000000000000000 0000000000000000 00000069dbdff290: 0000000000000000 0000000000000040 00000069dbdff2a0: 0000000000000004 00007ffecedba3f0 00000069dbdff2b0: 0000000000000001 00000069dbdff400 00000069dbdff2c0: 000001b0ce2d4380 00007ffececb1448 rax 0x7ffecc4ddc74 rbx 0x7ffecc4ddc72 rcx 0x42 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x69dbdff400 rsp 0x69dbdff1d0 r8 0x0 r9 0x0 r10 0x0 r11 0x65e r12 0xc000007a r13 0x0 r14 0x7ffecc4ddc74 r15 0x7ffece140000 rip 0x1b0f3650000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

########################################## now rebuild with: go build -buildmode=exe mcpt.go callSign.go

first 4 executions fine, and then on the 5th trace below C:\Users\wa2nf_000\MYGO\MCPT>.\mcpt -help=tutors Exception 0xc0000005 0x0 0x7ffecee50fff 0x26300000 PC=0x26300000

runtime: unknown pc 0x26300000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffeccc89f28 000000000092e780: 0000000000ae2b20 00007ffecec746ce 000000000092e790: 00007ffecec500e8 0000000000af5a70 000000000092e7a0: 00007ffeccc89f22 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000ae2b20 0000000000000000 000000000092e7d0: 0000000000ae3350 006c006400050005 000000000092e7e0: 00007ffeccc89f22 0000000000000000 000000000092e7f0: 00007ffe00000000 00007ffecec500e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffecec73783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000af5a70 00007ffeceda0ef0 000000000092e870: 0000000000ae2b20 00007ffeceda3510 000000000092e880: 000000000000097d 00007ffecc23ccb8 000000000092e890: 00007ffecc23a148 00007ffeceda0f18 000000000092e8a0: 00007ffecedb3d3f 00007ffecc230000 000000000092e8b0: 00007ffeceda5b04 00007ffececd0aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000b0d5f0 0000000000000040 000000000092e8f0: 0000000000000003 00007ffecedba3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000ae3350 00007ffececb1448 runtime: unknown pc 0x26300000 stack: frame={sp:0x92e820, fp:0x0} stack=[0x0,0x92ff00) 000000000092e720: 000000000092e768 000000000092e790 000000000092e730: 000000000092e758 000000000092e750 000000000092e740: 000000000092e754 0000000000180000 000000000092e750: 0000000000000000 0000000000000000 000000000092e760: 0000000000000000 0000000000000005 000000000092e770: 000000000092e8b8 00007ffeccc89f28 000000000092e780: 0000000000ae2b20 00007ffecec746ce 000000000092e790: 00007ffecec500e8 0000000000af5a70 000000000092e7a0: 00007ffeccc89f22 000000000092e7f0 000000000092e7b0: 004f0044004e0049 0053005c00530057 000000000092e7c0: 0000000000ae2b20 0000000000000000 000000000092e7d0: 0000000000ae3350 006c006400050005 000000000092e7e0: 00007ffeccc89f22 0000000000000000 000000000092e7f0: 00007ffe00000000 00007ffecec500e8 000000000092e800: 0000000000000000 0000000000000000 000000000092e810: 0000000000000001 00007ffecec73783 000000000092e820: <0000000000000001 0000000000000000 000000000092e830: 0000000000000000 000000000092e928 000000000092e840: 0000000000000000 0000000000000000 000000000092e850: 0000000000000000 0000000000000000 000000000092e860: 0000000000af5a70 00007ffeceda0ef0 000000000092e870: 0000000000ae2b20 00007ffeceda3510 000000000092e880: 000000000000097d 00007ffecc23ccb8 000000000092e890: 00007ffecc23a148 00007ffeceda0f18 000000000092e8a0: 00007ffecedb3d3f 00007ffecc230000 000000000092e8b0: 00007ffeceda5b04 00007ffececd0aa0 000000000092e8c0: 0000000000000000 0000000000000000 000000000092e8d0: 0000000000000000 0000000000000000 000000000092e8e0: 0000000000b0d5f0 0000000000000040 000000000092e8f0: 0000000000000003 00007ffecedba3f0 000000000092e900: 0000000000000001 000000000092eb00 000000000092e910: 0000000000ae3350 00007ffececb1448 rax 0x7ffecc23d85c rbx 0x7ffecc23d85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffecc269f00 rsp 0x92e820 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffecc23d85c r15 0x7ffecec50000 rip 0x26300000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

On Mon, Sep 7, 2020 at 1:00 AM Bill Lanahan wa2nfn@gmail.com wrote:

I'm skeptical of the cmd you gave me: set GOTRACEBACK=system ./mcpt..... It executes too fast, nothing comes to STDOUT/STDERR, and if I use jibberish instead of mcpt it still acts as if I typed: echo ""

I did capture another output (attached), they are less frequent but I I di have about 3 (maybe some windows auto update did something - a wild guess).

I'll keep trying.

Tnx Bill

file name meant a stacktrace without having the set GOTRACEBACK etc.

On Sat, Sep 5, 2020 at 7:25 PM Liam notifications@github.com wrote:

cc @randall77 https://github.com/randall77 @aclements https://github.com/aclements

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networkimprov commented 4 years ago

Hopefully we'll get some help from the runtime team, whom I cc'd above.

Ping back if there's no progress soon here or #40878

wa2nfn commented 4 years ago

I didn't see any update or add to the info I supplied.

I did see info from another post so I did:

set GOTRACEBACK=system set GODEBUG=asyncpreemptoff=1

after 3 quick executions go this stack trace - I didn't diff it to others but in case its tells more its here.

BTW I do have WEBROOT, I'm going to uninstall it but another poster didn't see a benefit to that

Exception 0xc0000005 0x0 0x7ffd0f2d0fff 0x21871010000 PC=0x21871010000

runtime: unknown pc 0x21871010000 stack: frame={sp:0x26077fe5b0, fp:0x0} stack=[0x0,0x26077ffc90) 00000026077fe4b0: 00000026077fe4f8 00000026077fe520 00000026077fe4c0: 00000026077fe4e8 00000026077fe4e0 00000026077fe4d0: 00000026077fe4e4 000002186bbe0000 00000026077fe4e0: 0000000000000000 0000000000000000 00000026077fe4f0: 0000000000000000 0000000000000005 00000026077fe500: 00000026077fe648 00007ffd0d139f28 00000026077fe510: 000002186bc92b40 00007ffd0f0f46ce 00000026077fe520: 00007ffd0f0d00e8 000002186bcc0880 00000026077fe530: 00007ffd0d139f22 00000026077fe580 00000026077fe540: 004f0044004e0049 0053005c00530057 00000026077fe550: 000002186bc92b40 0000000000000000 00000026077fe560: 000002186bcc07a0 006c006400050005 00000026077fe570: 00007ffd0d139f22 0000000000000000 00000026077fe580: 00007ffd00000000 00007ffd0f0d00e8 00000026077fe590: 0000000000000000 0000000000000000 00000026077fe5a0: 0000000000000001 00007ffd0f0f3783 00000026077fe5b0: <0000021800000001 0000000000000000 00000026077fe5c0: 0000000000000000 00000026077fe6b8 00000026077fe5d0: 0000000000000000 0000000000000000 00000026077fe5e0: 0000000000000000 0000000000000000 00000026077fe5f0: 000002186bcc0880 00007ffd0f220ef0 00000026077fe600: 000002186bc92b40 00007ffd0f223510 00000026077fe610: 000000000000097d 00007ffd0c6bccb8 00000026077fe620: 00007ffd0c6ba148 00007ffd0f220f18 00000026077fe630: 00007ffd0f233d3f 00007ffd0c6b0000 00000026077fe640: 00007ffd0f225b04 00007ffd0f150aa0 00000026077fe650: 0000000000000000 0000000000000000 00000026077fe660: 0000000000000000 0000000000000000 00000026077fe670: 000002186bcbb7a0 0000000000000040 00000026077fe680: 0000000000000003 00007ffd0f23a3f0 00000026077fe690: 0000000000000001 00000026077fe900 00000026077fe6a0: 000002186bcc07a0 00007ffd0f131448 runtime: unknown pc 0x21871010000 stack: frame={sp:0x26077fe5b0, fp:0x0} stack=[0x0,0x26077ffc90) 00000026077fe4b0: 00000026077fe4f8 00000026077fe520 00000026077fe4c0: 00000026077fe4e8 00000026077fe4e0 00000026077fe4d0: 00000026077fe4e4 000002186bbe0000 00000026077fe4e0: 0000000000000000 0000000000000000 00000026077fe4f0: 0000000000000000 0000000000000005 00000026077fe500: 00000026077fe648 00007ffd0d139f28 00000026077fe510: 000002186bc92b40 00007ffd0f0f46ce 00000026077fe520: 00007ffd0f0d00e8 000002186bcc0880 00000026077fe530: 00007ffd0d139f22 00000026077fe580 00000026077fe540: 004f0044004e0049 0053005c00530057 00000026077fe550: 000002186bc92b40 0000000000000000 00000026077fe560: 000002186bcc07a0 006c006400050005 00000026077fe570: 00007ffd0d139f22 0000000000000000 00000026077fe580: 00007ffd00000000 00007ffd0f0d00e8 00000026077fe590: 0000000000000000 0000000000000000 00000026077fe5a0: 0000000000000001 00007ffd0f0f3783 00000026077fe5b0: <0000021800000001 0000000000000000 00000026077fe5c0: 0000000000000000 00000026077fe6b8 00000026077fe5d0: 0000000000000000 0000000000000000 00000026077fe5e0: 0000000000000000 0000000000000000 00000026077fe5f0: 000002186bcc0880 00007ffd0f220ef0 00000026077fe600: 000002186bc92b40 00007ffd0f223510 00000026077fe610: 000000000000097d 00007ffd0c6bccb8 00000026077fe620: 00007ffd0c6ba148 00007ffd0f220f18 00000026077fe630: 00007ffd0f233d3f 00007ffd0c6b0000 00000026077fe640: 00007ffd0f225b04 00007ffd0f150aa0 00000026077fe650: 0000000000000000 0000000000000000 00000026077fe660: 0000000000000000 0000000000000000 00000026077fe670: 000002186bcbb7a0 0000000000000040 00000026077fe680: 0000000000000003 00007ffd0f23a3f0 00000026077fe690: 0000000000000001 00000026077fe900 00000026077fe6a0: 000002186bcc07a0 00007ffd0f131448 rax 0x7ffd0c6bd85c rbx 0x7ffd0c6bd85a rcx 0x41 rdi 0xffffffffffbadd11 rsi 0x0 rbp 0x7ffd0c6e9f00 rsp 0x26077fe5b0 r8 0x0 r9 0x0 r10 0x0 r11 0x97c r12 0xc000007a r13 0x0 r14 0x7ffd0c6bd85c r15 0x7ffd0f0d0000 rip 0x21871010000 rflags 0x10206 cs 0x33 fs 0x53 gs 0x2b

On Tue, Sep 8, 2020 at 3:50 PM Liam notifications@github.com wrote:

Hopefully we'll get some help from the runtime team, whom I cc'd above.

Ping back if there's no progress soon here or #40878 https://github.com/golang/go/issues/40878

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networkimprov commented 4 years ago

Does mcpt use cgo? Mistakes with it can cause memory corruption.

Could you create a subset of mcpt, or small program, that reproduces the crash and share that?

Another thing to try is building with the race detector.

wa2nfn commented 4 years ago

Fisrt, I don't even know what cgo is ;-(( All I do is download windows version from golang.org, use std imports, and build as previously discussed.

I HAVE discovered that some how the culprit IS WEBROOT.

I did a clean build of my exe, and run with a simple option that after doing all the flag analysis jist does a bunch of fmt.Printfs.

I can't to more than 5 or so with out a crash. I deleted WEBROOT and put that cmd in a shell and ran it 300 times with no issues. I reinstalled WEBROOT and it crashes within 5 or so executions. Repeated the remove, test, and reinstall with same result.

My conclusion is that when WEBROOT runs it must step on your memory some how, thats why its intermintent with when it happens.

I can do a small exe, with WEBROOT on before I call them a get my $ back, then I'll go back to McAfee.

Tell me more about the build command to explicitly use. And do I do any of the set GOTRACEBACK etc as well?

Bill

On Wed, Sep 9, 2020 at 2:08 PM Liam notifications@github.com wrote:

Does mcpt use cgo? Mistakes with it can cause memory corruption.

Could you create a subset of mcpt, or small program, that reproduces the crash and share that?

Another thing to try is building with the race detector.

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networkimprov commented 4 years ago

Since you've isolated this to an external source, I think you're done :-)

FYI, cgo is a way to call C language libraries from a Go program.

wa2nfn commented 4 years ago

OK but it would be nice to know that there is some tool or approach to finding this kind of issue.

I can from 37 years of software testing at Bell Labs and ATT Labs, I must say its disappointing that the man pages are so terse, as are explanations to many of these env variables, and general troubleshooting.

I hope the thought process isn't that since the source is available that people are going to paw through that.

Anyway - at least I can move on, but have my fingers crossed that the next background app can't do the same thing.

Thanks for your help Bill

On Wed, Sep 9, 2020 at 3:00 PM Liam notifications@github.com wrote:

Since you've isolated this to an external source, I think you're done :-)

FYI, cgo is a way to call C language libraries from a Go program.

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networkimprov commented 4 years ago

The Go ecosystem is relatively tiny compared to what you're used to.

networkimprov commented 4 years ago

Can you retitle this issue to indicate that the problem was Webroot?

wa2nfn commented 4 years ago

Removal of Webroot and retest confirmed PC issue was due to product interaction. Discussion with WEBROOT was useless. Go exe runs fine again. (tested 500 consecutive times in tight loop), with WEBROOT a stact trace would occur within 5 execututions.

On Wed, Sep 9, 2020 at 3:43 PM Liam notifications@github.com wrote:

Can you retitle this issue to indicate that the problem was Webroot?

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wa2nfn commented 4 years ago

While the problem is the interaction with WEBROOT - when both WEBROOT wakes up and does its scanning AND the Go exe which run either in bash or the windows command line cause Go to dump the stack trace, its baffling to image what computer resource a 5 line HelloWorld would use that a "go build" or "go run" would not. There has never been a crash during compile, even if they run for 15-30 seconds on my device.

I would really hope that both the Go support would have a solution, as well as WEBROOT. In the case of WEBROOT they scan the exe and have no issue with it, Its just a runtime problem.

networkimprov commented 4 years ago

Webroot may recognize the Go tooling binaries and leave them alone, and fail to recognize Go-built binaries.

ianlancetaylor commented 4 years ago

I suggest that you contact WEBROOT and ask them what is going wrong. If there is something that we can change in the Go toolchain to avoid the problem, we can take a look at doing that.

But I suspect that @networkimprov is correct.

jimitheat commented 3 years ago

Just made the decision to uninstall webroot. I was going mad with the number of errors I was getting with the runtime errors etc.

Everything compiles correctly now.

wa2nfn commented 3 years ago

I had to use their white lsit and avoid all my go exes. You should add a compliant to the webrot support link, thier response to me was they had only2 complaints about Go so it wasn't worth looking into.

jimitheat commented 3 years ago

nah screw it, I removed it. They asked for feedback and I gave them feedback. If they don't read my feedback, it's their own demise. It's not my responsibility to get their customer support to listen to me, I just take my business elsewhere