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freetds - PHP 4.1.2 + Apache 1.3.26 + FreeTDS 0.53 + Sybase 11.9.2 stack traces

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  • From: Magnus Nilsson <magnusn AT advfn.com>
  • To: freetds AT franklin.metalab.unc.edu
  • Subject: PHP 4.1.2 + Apache 1.3.26 + FreeTDS 0.53 + Sybase 11.9.2 stack traces
  • Date: 16 Jul 2002 14:42:40 +0100


I'm running Debian Woody, with the versions in the topic. We're having
problems with Sybase spewing out stack traces related to the 3 machines
running this configuration:

00:00000:00009:2002/07/16 14:28:30.93 server SQL Text:
00:00000:00009:2002/07/16 14:28:30.93 kernel curdb = 5 pstat = 0x10000
lasterror = 0
00:00000:00009:2002/07/16 14:28:30.93 kernel preverror = 0 transtate =
1
00:00000:00009:2002/07/16 14:28:30.93 kernel curcmd = 0 program = PHP
4.0
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x8428543
ucbacktrace+0x67(0x0,0x1,0x86d035c,0xb,0x8a89d653)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x80afac5
terminate_process+0x7b5(0x0,0xffffffff,0xb,0x86d035c,0x857979c)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x84361d4
kisignal+0x48(0xb,0x0,0x0,0x2b,0x2b)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x40059c68
gcc2_compiled.+0x37b12250(0x8a89d653,0xa,0x857979c,0xa,0x86d035c)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x82b1e41
bin__sqlhilo+0x27d(0x4277d9a0,0x8a89d653,0x6c97efe7,0x857979c,0xa)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x80e5959
getlangid+0x3d(0x8a89d653,0x6c97efe7,0x414b719e,0x86d035c,0x414b7430)
00:00000:00009:2002/07/16 14:28:30.93 kernel pc 0x80d3c72
loginlang+0x9e(0xd5d5cb89,0x8a89d5d5,0x6c97efe7,0x7565050d,0x463e7c)
00:00000:00009:2002/07/16 14:28:30.93 kernel end of stack trace, spid
9, kpid 894566470, suid 3

Almost every night at about 4AM GMT, the Sybase server crashes. This
behaviour started about the same time as we introduced these Debian
machines into our environment. We've got a few RH machines aswell, which
are running homerolled Apache and PHP 4.0.6 (and are linked to the
native Sybase libs). They are not causing this error.
Could this be a problem with FreeTDS, or should we look somewhere else?


--
Magnus Nilsson Office: +44 2070 700941
Systems Administrator Mobile: +44 7973 796019
ADVFN.COM PLC





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