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hamon-in / librtcdcpp

A simple WebRTC DataChannels library
BSD 3-Clause "New" or "Revised" License
13 stars 3 forks source link

SIGILL @ rpi3 on alpine armhf container #28

Open mo3rfan opened 6 years ago

mo3rfan commented 6 years ago

Commit: https://github.com/hamon-in/librtcdcpp/commit/4280238feee45e19ad085d0b46d7b032988a2f7b

Warnings

mo3rfan commented 6 years ago 
/psl-librtcdcpp # python3 python/stress_test.py
terminate called after throwing an instance of 'std::runtime_error'
  what():  Couldn't close file
Aborted (core dumped)
/psl-librtcdcpp/examples/websocket_client # ./2in1

====================++++10++

Process 12 exited with a coredump!!
mo3rfan commented 6 years ago

Debugging inside an alpine docker container with --cap-add=SYS_PTRACE --security-opt seccomp=unconfined https://stackoverflow.com/a/46676907/679829

(gdb) exec-file ./2in1
(gdb) core-file ./core
[New LWP 411]
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warning: Can't read pathname for load map: No error information.
Core was generated by `./2in1'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x76efb27c in __lookup_serv () from /lib/ld-musl-armhf.so.1
[Current thread is 1 (LWP 411)]
(gdb) bt
#0  0x76efb27c in __lookup_serv () at /lib/ld-musl-armhf.so.1
#1  0x76ef8084 in getaddrinfo () at /lib/ld-musl-armhf.so.1
(gdb) l
1       crt/arm/crti.s: No such file or directory.
(gdb) frame 1
#1  0x76ef8084 in getaddrinfo () from /lib/ld-musl-armhf.so.1
(gdb) l
1       in crt/arm/crti.s

GDB freezes when I try to run a program inside it. CPU goes to 100% and stays there. I was only able to inspect the crash via the coredump method above.

mo3rfan commented 6 years ago

Had to install debug symbols for musl, glib and libnice.

mo3rfan commented 6 years ago

gdb

This was on alpine docker container under x86.