[2.2.17pre9] General Protection Fault while running canvas7

From: Marc Lefranc (Marc.Lefranc@univ-lille1.fr)
Date: Thu Jul 06 2000 - 09:53:52 EST


Info: Kernel 2.2.17pre9 with Trond and dhiggen NFS patches applied
[compiled with egcs 1.1.2, options -O3 -march=pentium pro], on
a otherwise stock RH 6.2.

I was testing a beta version of canvas7 (www.deneba.com), which is
linked with libwine if that matters.

Upon exit of the program, things became weird. I could not type in
terminals, nor launch new ones from the gnome panel. I was able to
switch to a console to login as root, but the thing froze after typing
the password, just before getting to the prompt. Same thing occured
while trying to rlogin from another machine. I had to user the power
switch !

The problem is that this does not seem to be reproducible: I have
tested this program a few times before, and although particularly
slow, it didn't hurt the system.

Here is the relevant excerpt from /var/log/messages:

Jul 5 18:18:03 platon kernel: general protection fault: 04f4
Jul 5 18:18:03 platon kernel: CPU: 0
Jul 5 18:18:03 platon kernel: EIP: 0010:[__switch_to+110/188]
Jul 5 18:18:03 platon kernel: EFLAGS: 00210206
Jul 5 18:18:03 platon kernel: eax: 02ca2000 ebx: c7346000 ecx: c01f8000 edx: c6269e40
Jul 5 18:18:03 platon kernel: esi: c01f8000 edi: 0000003b ebp: c01f9fa4 esp: c7347d78
Jul 5 18:18:03 platon kernel: ds: 0018 es: 0018 ss: 0018
Jul 5 18:18:03 platon kernel: Process canvas7 (pid: 28162, process nr: 75, stackpage=c7347000)
Jul 5 18:18:03 platon kernel: Stack: c0111da8 c7347da4 00000039 c01f8000 00000000 c15b8960 c7347dc4 00000027
Jul 5 18:18:03 platon kernel: 00000000 c01f8000 c0208c00 c7346000 c0128235 c7347e88 00000000 00002bfe
Jul 5 18:18:03 platon kernel: c6790fa4 c7347dc4 c7347dc4 c7346000 c15b898c c0149b75 c15b8960 c7347e88
Jul 5 18:18:03 platon kernel: Call Trace: [schedule+340/640] [__wait_on_buffer+149/208] [block_getblk+85/600] [ext2_getblk+367/524] [ext2_file_write+1340/1632] [setup_sigcontext+234/304] [setup_frame+246/460]
Jul 5 18:18:03 platon kernel: [handle_signal+113/232] [do_acct_process+995/1036] [ext2_file_write+0/1632] [acct_process+16/20] [do_exit+118/628] [sys_exit+14/16] [system_call+52/56]
Jul 5 18:18:03 platon kernel: Code: 8e a3 34 02 00 00 8e ab 38 02 00 00 83 bb f8 02 00 00 00 74

-- 
_____________________________________________________________
 Marc Lefranc, Chargé de Recherche au CNRS
 Laboratoire de Physique des Lasers, Atomes, Molécules
 Bat P5, UFR de Physique
 Université des Sciences et Technologies de Lille
 F-59655 Villeneuve d'Ascq CEDEX (FRANCE)
 e-mail: Marc.Lefranc@univ-lille1.fr
 Tel : +33 (0)3 20 33 64 50 ;  FAX : +33 (0)3 20 33 70 20
_____________________________________________________________

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