[Bug 1535898] Re: Trusty & Vivid multipath-tools (multipathd) seg-fault core dump

[Louis Bouchard]

To further add to Mathieu's comment, here is the backtrace of one of the
recent core that we got :

(gdb) bt
#0  0x00007f17a122a0d5 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x00007f17a122d83b in __GI_abort () at abort.c:91
#2  0x00007f17a126732e in __libc_message (do_abort=2, fmt=0x7f17a13715d8 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
#3  0x00007f17a1271b26 in malloc_printerr (action=3, str=0x7f17a13717c8 "double free or corruption (fasttop)", 
    ptr=<optimized out>) at malloc.c:5051
#4  0x00007f17a15c8f27 in free_multipath (mpp=0x7f177c009160, free_paths=0) at structs.c:174
#5  0x00007f17a15ec09a in _remove_map (mpp=0x7f177c009160, vecs=0xbaea70, stop_waiter=1, purge_vec=1) at structs_vec.c:143
#6  0x00007f17a15ec0f8 in remove_map_and_stop_waiter (mpp=0x7f177c009160, vecs=0xbaea70, purge_vec=1) at structs_vec.c:156
#7  0x00000000004075f5 in mpvec_garbage_collector (vecs=0xbaea70) at main.c:949
#8  0x00007f177c007060 in ?? ()
#9  0x0000000000baea70 in ?? ()
#10 0x00007f177c009160 in ?? ()
#11 0x0000000200000003 in ?? ()
#12 0x00007f17a2274e20 in ?? ()
#13 0x00000000004080f0 in checkerloop (ap=0x7f17a13717c8) at main.c:1162
#14 0x0000000000000000 in ?? ()
(gdb) f 4
#4  0x00007f17a15c8f27 in free_multipath (mpp=0x7f177c009160, free_paths=0) at structs.c:174
warning: Source file is more recent than executable.
174                     FREE(mpp->dmi);
(gdb) l
169                     FREE(mpp->alias);
170                     mpp->alias = NULL;
171             }
172
173             if (mpp->dmi) {
174                     FREE(mpp->dmi);
175                     mpp->dmi = NULL;
176             }
177
178             /*
(gdb)

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Title:
  Trusty & Vivid multipath-tools (multipathd) seg-fault core dump

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