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bug#19980: master: `Backtrace after malloc arena is corrupted` causes se
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From: |
Daniel Colascione |
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Subject: |
bug#19980: master: `Backtrace after malloc arena is corrupted` causes segfault during build |
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Date: |
Sun, 01 Mar 2015 19:38:16 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
On 03/01/2015 07:28 PM, Eric Hanchrow wrote:
> Program received signal SIGSEGV, Segmentation fault.
> __GI___backtrace (array=array@entry=0xbfffedcc, size=size@entry=0) at
> ../sysdeps/i386/backtrace.c:141
> 141../sysdeps/i386/backtrace.c: No such file or directory.
> (gdb) bt
> #0 __GI___backtrace (array=array@entry=0xbfffedcc, size=size@entry=0)
> at ../sysdeps/i386/backtrace.c:141
> #1 0x080ed543 in emacs_backtrace
> (backtrace_limit=backtrace_limit@entry=-1) at sysdep.c:2177
> #2 0x0804f744 in main (argc=<optimized out>, argv=0xbffff6d4) at
> emacs.c:887
> (gdb)
So we're crashing inside glibc's backtrace? Between this crash and the
bug that commit b74db6347cf5cac1ebd4c604fd5691c588fd8e32 is trying to
work around, maybe we should link against libunwind instead of using the
system backtrace.
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