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Segmentation Violation

Posted in 2000

Michael Hoffman — — source: Informix-list mailing list archive (1991-1998)

Hi all, Well, my first real major crisis and I had no idea what was going on. :-( Informix crashed early Saturday AM, but no one noticed until Monday AM. I got Informix up and running, but have no idea what caused the problem (other than what was in the online.log file). All I can see is that a Segmentation Violation forced Informix to Shut-down. Can anyone make heads or tails out of the following log excerpt? I've also included the /tmp/af.fe941 file. (I know for the future to get a Shared Memory dump, but it's too late now, huh?) Thanks, Michael Hoffman =========================== online.log ---------- 03:10:05 Checkpoint Completed: duration was 2 seconds. 03:11:46 Assert Failed: Internal Error - Segmentation Violation 03:11:46 Who: Thread(15, kaio, bae0898, 1) 03:11:46 Results: OnLine must abort 03:11:46 Action: Reinitialize shared memory 03:11:46 See Also: /tmp/af.fe941 03:11:46 rsinit.c, line 9968, thread 15, proc id 371, Segmentation Violation. 03:11:46 PANIC: Attempting to bring system down Mon Dec 11 07:42:51 2000 07:42:51 Event alarms enabled. ALARMPROG = '/home/informix/log_full.sh' 07:42:56 DR: DRAUTO is 0 (Off) 07:42:57 INFORMIX-OnLine Initialized -- Shared Memory Initialized. 07:42:57 Physical Recovery Started. ============================================= /tmp/af.fe941 -------------- 03:11:46 03:11:46 Assert Failed: Internal Error - Segmentation Violation 03:11:46 Who: Thread(15, kaio, bae0898, 1) 03:11:46 Results: OnLine must abort 03:11:46 Action: Reinitialize shared memory 03:11:46 See Also: /tmp/af.fe941 03:11:46 Stack for thread: 15 kaio base: 0x0bcf4018 len: 33280 pc: 0x00385610 tos: 0x0bcfae20 0x00384fac mt_affail (0x0, 0x0, 0x4e38d8, 0xbb04260, 0x4e38d4, 0x0) 0x00280464 rsam_affail (0xbf5c018, 0xbb37208, 0xbdbdfe0, 0xbae0898, 0xbb04260, 0x0) 0x0007bf90 hang_thread (0x4e27c8, 0x2400, 0xb, 0x0, 0x0, 0x0) 0xff195ec4 ***unknown*** (0xb, 0x0, 0xbcfb6f0, 0xffffffff, 0x0, 0x1) 0x0be1a000 ***unknown*** (0xbb32018, 0xbe1a000, 0x0, 0x0, 0x0, 0x0) 0x0037a67c morecore (0xbb32018, 0x8818, 0xffffffff, 0xbaa8000, 0xbb6c948, 0x5801800) 0x00379f5c mt_shm_malloc_segid(0xbb32018, 0x8800, 0x1b, 0xffffffff, 0xbcc2800, 0xff3468b8) 0x00379bf4 mt_shm_malloc (0xbb32018, 0x8800, 0x1b, 0xfffffff8, 0x0, 0xbb6c945) 0x00370a9c mt_aio_malloc (0x8800, 0x0, 0x0, 0x28, 0x0, 0x580a800) 0x00383d64 kaio_bb_get (0xbb96b50, 0x0, 0x580a800, 0x0, 0x0, 0xbcc2800) 0x00383104 kaio_workon (0x0, 0xbc46330, 0x2, 0xbc46364, 0xbb97530, 0xbb97208) 0x003827b8 kaiothread (0xbb97500, 0x3a107f52, 0xbbff808, 0x7, 0x0, 0xbb97504) 0x0036b404 startup (0xffffffff, 0x2, 0x4, 0x3, 0x0, 0x0) 0x00371da4 mt_aio_wait (0x0, 0x0, 0x0, 0x0, 0x0, 0x0) 0x00000000 ***unknown*** 03:11:46 ------------------ End of assertion failure 0 -----------------