[Mageia-dev] urpmi segfaults on the build system (was Re: Our BS is about to eat packages?)

Sat Aug 11 12:33:47 CEST 2012

nicolas vigier <boklm at mars-attacks.org> writes:
+
+> On Mon, 29 Aug 2011, Michael Scherer wrote:
+
+[...]
+
+>> > After looking at the problem, I suspect it could be linked to texmf.
+>> > Each time iurt install it, the process stop.  
+>> 
+>> Boklm found the problem, it was urpmi segfaulting.
+>> 
+>> We remove the chroot, and thing seems to be ok now again.
+>
+> But we probably still have the problem, as segfaults seems to be
+> happenning not all the time.
+>
+> After succesfully reproducing the error using the old chroot and running
+> urpmi several times, the backtrace :
+>
+> #0  0xf7405b29 in _int_malloc () from /lib/i686/libc.so.6
+> #1  0xf7408177 in malloc () from /lib/i686/libc.so.6
+> #2  0xf6eadfa8 in __os_malloc (env=0xb442db8, size=4149199776, storep=0xffbbf5cc) at ../os/os_alloc.c:253
+> #3  0xf6eac47c in __memp_sync_int (env=0xb442db8, dbmfp=0xb893130, trickle_max=0, flags=8, wrote_totalp=0x0, interruptedp=0x0)
+>     at ../mp/mp_sync.c:294
+> #4  0xf6eacfaf in __memp_fsync (dbmfp=0xb893130) at ../mp/mp_sync.c:202
+> #5  0xf6e3cdf9 in __db_sync (dbp=0xb8963e8) at ../db/db_am.c:706
+> #6  0xf6e3aa68 in __db_refresh (dbp=0xb8963e8, txn=0x0, flags=0, deferred_closep=0xffbbf6fc, reuse=0) at ../db/db.c:819
+> #7  0xf6e3adc5 in __db_close (dbp=0xb8963e8, txn=0x0, flags=0) at ../db/db.c:695
+> #8  0xf6e52a38 in __db_close_pp (dbp=0xb8963e8, flags=0) at ../db/db_iface.c:253
+> #9  0xf72fec45 in db3close (dbi=0xb893030, flags=0) at backend/db3.c:494
+> #10 0xf73071c6 in dbiClose (db=0xb2b6950) at ../lib/rpmdb_internal.h:453
+> #11 rpmdbClose (db=0xb2b6950) at rpmdb.c:852
+> #12 0xf73379d6 in rpmtsCloseDB (ts=0xb231b20) at rpmts.c:64
+> #13 0xf7337a48 in rpmtsFree (ts=0xb231b20) at rpmts.c:567
+> #14 0xf736c7a1 in XS_URPM__DB_DESTROY (my_perl=0x8d42008, cv=0x8e2d420) at URPM.xs:2794
+
+[...]
+
+Hello,
+
+After hitting the issue yesterday with the "git" package, we had a look
+at the issue together with pterjan.
+I had to merge some patches in valgrind to support the new compressed
+debug info first, but then valgrind spotted some interesting issues.
+
+pterjan fixed some of them, fixes are now in perl-URPM 4.12.
+It should help preventing "build loops" in the BS.
+
+Attached is the valgrind log with remaining issues, maybe insightful for
+Titi.
+
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+
+-- 
+Olivier Blin - blino
+