Date: Sat, 28 Nov 2009 09:16:01 -0600 (CST) From: "Sean C. Farley" <scf@FreeBSD.org> To: Gary Jennejohn <gary.jennejohn@freenet.de> Cc: current@FreeBSD.org Subject: Re: core dump in cvsup caused by _once()? Message-ID: <alpine.BSF.2.00.0911280910400.54979@thor.farley.org> In-Reply-To: <20091128111501.34a7a2a4@ernst.jennejohn.org> References: <20091128111501.34a7a2a4@ernst.jennejohn.org>
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On Sat, 28 Nov 2009, Gary Jennejohn wrote: > Since I installed a new world and kernel on November 26 I'm seeing > core dumps with cvsup, even though I reinstalled cvsup yesterday. > > Here the output from a gdb session without any debugging symbols: > > Core was generated by `cvsup'. > Program terminated with signal 4, Illegal instruction. > Reading symbols from /lib/libz.so.5...(no debugging symbols found)...done. > Loaded symbols for /lib/libz.so.5 > Reading symbols from /lib/libm.so.5...(no debugging symbols found)...done. > Loaded symbols for /lib/libm.so.5 > Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done. > Loaded symbols for /lib/libc.so.7 > Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done. > Loaded symbols for /libexec/ld-elf.so.1 > #0 0x00000008009edcf7 in gmtime_r () from /lib/libc.so.7 > (gdb) bt > #0 0x00000008009edcf7 in gmtime_r () from /lib/libc.so.7 > #1 0x00000008009ed79e in gmtime_r () from /lib/libc.so.7 > #2 0x00000008009ee420 in gmtime_r () from /lib/libc.so.7 > #3 0x00000008009ee638 in gmtime_r () from /lib/libc.so.7 > #4 0x00000008009f1988 in _once () from /lib/libc.so.7 > #5 0x00000008009ed41f in timeoff () from /lib/libc.so.7 > #6 0x00000008009eeca7 in gmtime () from /lib/libc.so.7 > #7 0x00000000004a643a in calloc () > #8 0x000000000043aec7 in ?? () > #9 0x0000000000448eaa in ?? () > #10 0x0000000000409ece in ?? () > #11 0x00000000004191a4 in ?? () > #12 0x0000000000417cbe in ?? () > #13 0x000000000041529f in ?? () > #14 0x0000000000414d7a in ?? () > #15 0x000000000049f980 in calloc () > #16 0x000000000048fa3d in fnmatch () > #17 0x00007fffffffd3e8 in ?? () > #18 0x00007fffffffe950 in ?? () > #19 0x00007fffffffea40 in ?? () > #20 0x00007fffffffea28 in ?? () > #21 0x0000000000000000 in ?? () > #22 0x0000000000000000 in ?? () > #23 0x00001fa00000037f in ?? () > #24 0x0000000000000000 in ?? () > #25 0x00000000006476c0 in ?? () > #26 0x00000000006476c0 in ?? () > #27 0x0000000000494d89 in fnmatch () > Previous frame inner to this frame (corrupt stack?) > > Seems to me that _once() was a very recent addition. Can't say for > certain whether this is the culprit, but it looks suspicious to me. Also, cvsupd will core dump (SIGILL) when built on stable/8 amd64 r199641 when a connection to it is made from csup. An i386-built cvsupd will run correctly on the same system. For cvsupd, it is dying at dladdr(), but I have not had time to debug it further. Sean -- scf@FreeBSD.org
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