[Pkg-dspam-misc] Bug#722057: libdspam7-drv-hash: dspam segfaults [libhash_drv on _hash_drv_seek()]

[Raphaël]

On Sat, Sep 07, 2013 at 08:33:21PM +0200, Thomas Preud'homme wrote:
> Le samedi 7 septembre 2013 09:51:28 Raphael Droz a écrit :
> Symbols for libdspam7-drv-hash are found in libdspam7-dbg. Could you install 
> it and give me stacktrace you get with it?

cannot reproduce the segfault with gdb attached [seems "caught"], see dmesg:


# before
> [1789927.243664] cssclean[19441]: segfault at 7f9a9235a000 ip 0000000000403b5b sp 00007fff03c76f50 error 7 in cssclean[400000+c000]
> [1790149.375722] cssclean[20088]: segfault at 7f47faf76000 ip 0000000000403b5b sp 00007fffe4ca6aa0 error 7 in cssclean[400000+c000]
> [1790258.467683] dspam[20448]: segfault at 7f3dbee971c0 ip 00007f3dbbfdc69a sp 00007f3dbbfd2048 error 4 in libhash_drv.so.7.0.0[7f3dbbfd8000+6000]
> [1790317.292935] dspam[20639]: segfault at 7fc7239e3c88 ip 00007fc7249e969a sp 00007fc7249df048 error 4 in libhash_drv.so.7.0.0[7fc7249e5000+6000]
> [1790436.865577] cssclean[21207]: segfault at 7f115c85b000 ip 0000000000403af6 sp 00007fffbad55270 error 4 in cssclean[400000+c000]
> [1790683.690902] dspam[21369]: segfault at 7f818dc5db20 ip 00007f818acfe69a sp 00007f818a2b2048 error 4 in libhash_drv.so.7.0.0[7f818acfa000+6000]
> [1790726.958260] cssclean[21906]: segfault at 7f2943d15000 ip 0000000000403af6 sp 00007fff4de21140 error 4 in cssclean[400000+c000]
> [1861882.986382] cssclean[29031]: segfault at 7f5961562000 ip 0000000000403af6 sp 00007fff8ee5a630 error 4 in cssclean[400000+c000]

# since gdb is attached:
> [1866157.050310] dspam[19015] trap int3 ip:7f796e791c21 sp:7fff8ace3708 error:0
> [1873018.143174] cssclean[13762]: segfault at 7f5e84d35000 ip 0000000000403af6 sp 00007fff606566c0 error 4 in cssclean[400000+c000]
> [1873320.510550] cssstat[14430]: segfault at 7f3a35434010 ip 000000000040373d sp 00007fff2cbfcac0 error 4 in cssstat[400000+c000]
> [1873509.922881] cssstat[14900]: segfault at 7fb25cd23010 ip 000000000040373d sp 00007fffcab5bc00 error 4 in cssstat[400000+c000]
> [1873528.544267] cssstat[14984]: segfault at 7fcde4ed2010 ip 000000000040373d sp 00007ffffa51a510 error 4 in cssstat[400000+c000]
> [1948279.518065] cssclean[25403]: segfault at 7f89cc849000 ip 0000000000403af6 sp 00007fff016eb060 error 4 in cssclean[400000+c000]
> [1953904.527031] dspam[13449] trap int3 ip:7ffa2a143c21 sp:7fff4001f358 error:0

how would I trace these ?