Bug#751993: multipath-tools: multipath -l segfaults (and multipath not working)

[Di Domizio Daniele]

This is the syslog content:

Jun 20 09:29:21 calc07 kernel: [161842.263432] multipathd[16102]: segfault at d8 ip 00007f141ddc3fb2 sp 00007fffee847ab0 error 6 in libc-2.19.so[7f141dcf0000+19f000]
Jun 20 09:29:28 calc07 kernel: [161848.502025] multipath[16509]: segfault at d8 ip 00007f30e9a5ffc2 sp 00007fffd2fbc730 error 6 in libc-2.19.so[7f30e998c000+19f000]
Jun 20 09:29:30 calc07 kernel: [161851.348927] multipath[16515]: segfault at d8 ip 00007f4402c4afc2 sp 00007fff15990180 error 6 in libc-2.19.so[7f4402b77000+19f000]

This is the gdb output:

Core was generated by `multipath -l'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f3230e79fc2 in __regexec (preg=0x7f32327f44a0, string=0x7f323288eb49 "Logical Volume", nmatch=0, pmatch=0x0, eflags=0) at regexec.c:248
248     regexec.c: No such file or directory.
#0  0x00007f3230e79fc2 in __regexec (preg=0x7f32327f44a0, string=0x7f323288eb49 "Logical Volume", nmatch=0, pmatch=0x0, eflags=0) at regexec.c:248
#1  0x00007f32313738b5 in _blacklist_device () from /lib/libmultipath.so.0
#2  0x00007f32313741aa in _filter_device () from /lib/libmultipath.so.0
#3  0x00007f32313741cf in filter_device () from /lib/libmultipath.so.0
#4  0x00007f323137a93b in pathinfo () from /lib/libmultipath.so.0
#5  0x00007f323137aca2 in store_pathinfo () from /lib/libmultipath.so.0
#6  0x00007f323137af47 in path_discovery () from /lib/libmultipath.so.0
#7  0x00007f3231e2566c in ?? ()
#8  0x00007f3230dc7b45 in __libc_start_main (main=0x7f3231e24eb0, argc=2, argv=0x7fff1512b4f8, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=0x7fff1512b4e8) at libc-start.c:287
#9  0x00007f3231e25a31 in ?? ()

and I have attached the core file.


Thanks,
Daniele

From: Ritesh Raj Sarraf [mailto:rrs at researchut.com] On Behalf Of Ritesh Raj Sarraf
Sent: Mittwoch, 18. Juni 2014 22:34
To: Di Domizio Daniele; 751993 at bugs.debian.org; Debian Bug Tracking System
Subject: Re: Bug#751993: multipath-tools: multipath -l segfaults (and multipath not working)

Can you check if you have additional information in syslog ?
Also, is it possible for you to generate the stacktrace and provide ?

On my boxes, the segfault is not seen.
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