https://github.com/vitalyisaev2/pprof_cgo_issue

Pprof crashes CGO application
https://github.com/vitalyisaev2/pprof_cgo_issue

Last synced: 25 days ago
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Pprof crashes CGO application

• Host: GitHub
• URL: https://github.com/vitalyisaev2/pprof_cgo_issue
• Owner: vitalyisaev2
• Created: 2019-04-30T11:07:20.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-04-30T13:04:09.000Z (over 5 years ago)
• Last Synced: 2024-04-20T00:17:28.530Z (9 months ago)
• Language: Go
• Size: 5.86 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Steps to reproduce [Golang #31758](https://github.com/golang/go/issues/31758):

```bash

# build docker image

git clone https://github.com/vitalyisaev2/pprof_cgo_issue.git

docker build -t pprof_cgo_issue

# run docker container (omit --privileged if you already have core_pattern configured)

docker run -it --name=pprof_cgo_issue --privileged pprof_cgo_issue bash

# setup core_pattern if neccessary

echo '/tmp/core.%h.%e.%t' > /proc/sys/kernel/core_pattern

ulimit -c unlimited

# launch process without profiler - works good

./pprof_cgo_issue

[179 142 216 38 137 21 205 79 196 127 27 100 185 152 49 247 13 156 231 179 50 95 170 87 16 217 60 126 116 206 223 3]

# launch process with profiler - crash

./pprof_cgo_issue -profiler

2019/04/30 12:14:40 profile: cpu profiling enabled, cpu.pprof

Segmentation fault (core dumped)

# check core dump

gdb ./pprof_cgo_issue /tmp/core.d685d2a145b4.pprof_cgo_issue.1556626480.20

(gdb) bt

#0  0x00007fb47640c246 in ?? () from /lib64/libgcc_s.so.1

#1  0x00007fb47640cefd in _Unwind_Backtrace () from /lib64/libgcc_s.so.1

#2  0x00000000007322bc in cgoTraceback (parg=0xc0002dd970, parg@entry=) at traceback.c:82

#3  0x00000000007364e6 in x_cgo_callers (sig=27, info=0xc0002ddaf0, context=0xc0002dd9c0, cgoTraceback=, cgoCallers=, sigtramp=0x46a2f0 ) at gcc_traceback.c:22

#4  

#5  0x00007fb476614232 in ?? () from /lib64/libcrypto.so.1.1

Backtrace stopped: Cannot access memory at address 0xa7382544026add44

```