Description:

Sometimes, when I start dhcpcd (for some days now), it crashes with a backtrace (attached below).

Always (for some days) it exits, if the link goes does, it exits (it may have been crashed, too).




Additional info:
* package version(s)
* config and/or log files etc.


Steps to reproduce:


[8:39] brief:~# dhcpcd wlan0
dhcpcd[3385]: version 5.5.5 starting
dhcpcd[3385]: wlan0: waiting for carrier
dhcpcd[3385]: wlan0: carrier acquired
dhcpcd[3385]: wlan0: sending IPv6 Router Solicitation
dhcpcd[3385]: wlan0: rebinding lease of 192.168.1.38
dhcpcd[3385]: wlan0: NAK: requested address not available from 192.0.2.1
*** glibc detected *** dhcpcd: double free or corruption (fasttop): 0x00000000007a8960 ***
======= Backtrace: =========
/lib/libc.so.6(+0x78e66)[0x7fa5eb0cde66]
dhcpcd[0x40cdd0]
dhcpcd[0x40e597]
dhcpcd[0x4093f0]
dhcpcd[0x40aa8a]
dhcpcd[0x4028a8]
/lib/libc.so.6(__libc_start_main+0xed)[0x7fa5eb07638d]
dhcpcd[0x402d1d]
======= Memory map: ========
00400000-00419000 r-xp 00000000 fe:00 3685019 /sbin/dhcpcd
00619000-0061a000 r--p 00019000 fe:00 3685019 /sbin/dhcpcd
0061a000-0061b000 rw-p 0001a000 fe:00 3685019 /sbin/dhcpcd
0061b000-0061c000 rw-p 00000000 00:00 0
007a5000-007c7000 rw-p 00000000 00:00 0 [heap]
7fa5eac23000-7fa5eac38000 r-xp 00000000 fe:00 3672483 /usr/lib/libgcc_s.so.1
7fa5eac38000-7fa5eae38000 ---p 00015000 fe:00 3672483 /usr/lib/libgcc_s.so.1
7fa5eae38000-7fa5eae39000 rw-p 00015000 fe:00 3672483 /usr/lib/libgcc_s.so.1
7fa5eae39000-7fa5eae50000 r-xp 00000000 fe:00 3984244 /lib/libpthread-2.15.so
7fa5eae50000-7fa5eb04f000 ---p 00017000 fe:00 3984244 /lib/libpthread-2.15.so
7fa5eb04f000-7fa5eb050000 r--p 00016000 fe:00 3984244 /lib/libpthread-2.15.so
7fa5eb050000-7fa5eb051000 rw-p 00017000 fe:00 3984244 /lib/libpthread-2.15.so
7fa5eb051000-7fa5eb055000 rw-p 00000000 00:00 0
7fa5eb055000-7fa5eb1ec000 r-xp 00000000 fe:00 3984261 /lib/libc-2.15.so
7fa5eb1ec000-7fa5eb3ec000 ---p 00197000 fe:00 3984261 /lib/libc-2.15.so
7fa5eb3ec000-7fa5eb3f0000 r--p 00197000 fe:00 3984261 /lib/libc-2.15.so
7fa5eb3f0000-7fa5eb3f2000 rw-p 0019b000 fe:00 3984261 /lib/libc-2.15.so
7fa5eb3f2000-7fa5eb3f6000 rw-p 00000000 00:00 0
7fa5eb3f6000-7fa5eb3fd000 r-xp 00000000 fe:00 3984246 /lib/librt-2.15.so
7fa5eb3fd000-7fa5eb5fc000 ---p 00007000 fe:00 3984246 /lib/librt-2.15.so
7fa5eb5fc000-7fa5eb5fd000 r--p 00006000 fe:00 3984246 /lib/librt-2.15.so
7fa5eb5fd000-7fa5eb5fe000 rw-p 00007000 fe:00 3984246 /lib/librt-2.15.so
7fa5eb5fe000-7fa5eb61f000 r-xp 00000000 fe:00 3984269 /lib/ld-2.15.so
7fa5eb7f7000-7fa5eb7fb000 rw-p 00000000 00:00 0
7fa5eb81c000-7fa5eb81e000 rw-p 00000000 00:00 0
7fa5eb81e000-7fa5eb81f000 r--p 00020000 fe:00 3984269 /lib/ld-2.15.so
7fa5eb81f000-7fa5eb820000 rw-p 00021000 fe:00 3984269 /lib/ld-2.15.so
7fa5eb820000-7fa5eb821000 rw-p 00000000 00:00 0
7fff4da6a000-7fff4da8b000 rw-p 00000000 00:00 0 [stack]
7fff4dbe7000-7fff4dbe8000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
zsh: abort dhcpcd wlan0
[8:39] brief:~# dhcpcd wlan0
[8:40] brief:~# pacman -Qi dhcpcd
Name : dhcpcd
Version : 5.5.5-1
URL : http://roy.marples.name/dhcpcd/
Licenses : BSD
Groups : base
Provides : None
Depends On : glibc sh
Optional Deps : None
Required By : netcfg
Conflicts With : None
Replaces : None
Installed Size : 256.00 KiB
Packager : Ronald van Haren <ronald@archlinux.org>
Architecture : x86_64
Build Date : Fri 23 Mar 2012 05:25:47 PM CET
Install Date : Fri 30 Mar 2012 01:29:04 PM CEST
Install Reason : Explicitly installed
Install Script : No
Description : RFC2131 compliant DHCP client daemon