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Date: Tue, 17 Dec 2019 08:31:31 +0000
From: Eric Wong <e@80x24.org>
To: Arkadi Colson <arkadi@smartbit.be>
Cc: cmogstored-public@bogomips.org
Subject: Re: Heavy load
Message-ID: <20191217083131.GA32606@dcvr>
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Arkadi Colson <arkadi@smartbit.be> wrote:
> This is the output from another crash:
> 
> [Current thread is 1 (Thread 0x7f9aa16f2700 (LWP 3318))]
> (gdb) bt
> #0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
> #1  0x00007f9aa217742a in __GI_abort () at abort.c:89
> #2  0x00007f9aa21b3c00 in __libc_message (do_abort=do_abort@entry=2, 
> fmt=fmt@entry=0x7f9aa22a8fd0 "*** Error in `%s': %s: 0x%s ***\n") at 
> ../sysdeps/posix/libc_fatal.c:175
> #3  0x00007f9aa21b9fc6 in malloc_printerr (action=3, str=0x7f9aa22a5b8a 
> "free(): invalid pointer", ptr=<optimized out>, ar_ptr=<optimized out>) 
> at malloc.c:5049
> #4  0x00007f9aa21ba80e in _int_free (av=0x7f9aa24dcb00 <main_arena>, 
> p=0x7f9a580010f0, have_lock=0) at malloc.c:3905
> #5  0x000055d501c98659 in ?? ()
> #6  0x000055d501c9bfba in ?? ()
> #7  0x000055d501c9c10e in ?? ()
> #8  0x000055d501ca328d in ?? ()

Thanks, I really wish #5..#8 had more info instead of "??"

Was cmogstored compiled with -ggdb3? (should be the default)

When you run "file /path/to/cmogstored", it should
have something like: "with debug_info, not stripped"

You can check the "CFLAGS =" line in the Makefile after
running configure.  Thanks.

> #9  0x00007f9aa24e94a4 in start_thread (arg=0x7f9aa16f2700) at 
> pthread_create.c:456
> #10 0x00007f9aa222bd0f in clone () at 
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:97