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Re: glibc 2.19 deadlock in asprintf
- From: Arkadiusz MiÅkiewicz <arekm at maven dot pl>
- To: Siddhesh Poyarekar <siddhesh dot poyarekar at gmail dot com>
- Cc: "libc-help" <libc-help at sourceware dot org>
- Date: Thu, 22 May 2014 12:38:09 +0200
- Subject: Re: glibc 2.19 deadlock in asprintf
- Authentication-results: sourceware.org; auth=none
- References: <201405221217 dot 54804 dot arekm at maven dot pl> <CAAHN_R2H=mgR8JiTTv0QRuH7oFRnP+Qn29h2nq8rGSfxrgt=gw at mail dot gmail dot com>
On Thursday 22 of May 2014, Siddhesh Poyarekar wrote:
> That's a backtrace of just one thread - please get a backtrace of all
> threads in play using 'thread apply all backtrace'. There isn't
> enough information to conclude that this is a bug, but I am going to
> guess that it is not, and that there may have been either some kind of
> memory corruption or a malloc call from a signal handler causing a
> deadlock.
There are no other threads. It's preforked apache.
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7f04bf416780 (LWP 12168) "httpd.prefork"
__lll_lock_wait_private () at
../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
kernel 3.4.90 btw.
> Siddhesh
--
Arkadiusz MiÅkiewicz, arekm / maven.pl