Hi,
On mer., 02 nov. 2022 at 12:25, Mathieu Othacehe <othac...@gnu.org> wrote:
> I'll see if this can be reproduced on
> a foreign distribution.
Using Guix 00ff6f7.
--8<---------------cut here---------------start------------->8---
$ uname -a
Linux pfiuh07 5.13.0-40-generic #45~20.04.1-Ubuntu SMP Mon Apr 4 09:38:31 UTC
2022 x86_64 x86_64 x86_64 GNU/Linux
$ echo "/tmp/my-core-%p" | sudo tee /proc/sys/kernel/core_pattern
/tmp/my-core-%p
$ guix shell -C coreutils gcc-toolchain gdb
/tmp/bug-58923 [env]$ cat test.c
#include <stdio.h>
int main() {
int *t = NULL;
return *t;
}
/tmp/bug-58923 [env]$ gcc test.c
/tmp/bug-58923 [env]$ ulimit -a
real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 255927
max locked memory (kbytes, -l) 65536
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 9788
cpu time (seconds, -t) unlimited
max user processes (-u) 255927
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
/tmp/bug-58923 [env]$ ulimit -c unlimited
/tmp/bug-58923 [env]$ ulimit -a
real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 255927
max locked memory (kbytes, -l) 65536
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 9788
cpu time (seconds, -t) unlimited
max user processes (-u) 255927
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
/tmp/bug-58923 [env]$ ./a.out
Segmentation fault (core dumped)
/tmp/bug-58923 [env]$ ls /tmp/
bug-58923 my-core-23
/tmp/bug-58923 [env]$ gdb ./a.out /tmp/my-core-23
GNU gdb (GDB) 12.1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from ./a.out...
(No debugging symbols found in ./a.out)
[New LWP 23]
Core was generated by `./a.out'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000000401106 in main ()
(gdb) bt
#0 0x0000000000401106 in main ()
(gdb) exit
/tmp/bug-58923 [env]$ exit
exit
--8<---------------cut here---------------end--------------->8---
Cheers,
simon
