Date: Fri, 2 Apr 2004 16:03:08 +0400 From: "Artem Koutchine" <matrix@itlegion.ru> To: <freebsd-current@freebsd.org> Subject: 5.2-current does not allow login and panics with modified memory after free Message-ID: <00da01c418aa$8247b160$0c00a8c0@artem>
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Hello! I am trying to run 5.2-CURRENT (cvsupped and rebuild apr 1) on the following server: Supermicro DPE-G2 motherboard DUAL XEON 2.66Ghz (HT enabled) 2GB RAM 4 SATA SEAGTE 120GB DRIVES 3WARE 8506-4LP SATA RAID5 CONTROLLER SATA drivers are joint into a single RAID5 array which is seens as twe0. 3dm is installed. The box ran half a day and a night just fine. After that it was shutdown correctly and after a couple of hours turned on. I have heared (leds do not work due to connector incompatibility with supermicro case) high hdd activity for some time, but all filesysrems were marked as clean. I tried to login but i could not because after i types 'root' at the login nothing happened at all. Just a blinking cursor. However, the box was not hanging - screensaver appeared after some time and i can type on tty and also swicth vttys and use scroll lock to scroll boot messages. 3DM did not respond via web. So, i waited 4 hours and rebooted. After reboot i can logon but after several requests to RAID status via web (3dm) i got the following on the console: twe0: TWEIO_GET_PARAM failed for 0x402/0x3/16 Then after a minute or two the following happened: Memory modified after free 0x788f400(508) val=20202020 @ 0xe788f400 panic: Most recently used by devbuf at line 128 in file /usr/src/sys/udm_dbg.c cpu=0; Debugger ("panic") Stopped at Debugger +0.46: xchgl %ebx, in_Debugger.0 and i typed 'c' in debugger: the system started to shutdown and here is what i saw: twe0: failed to delete unit 0 stray irq9 Is this all a twe driver problem or general 5.2-CURRENT instability? Any ideas what happened in two cases and how to avoid it or/and solve the problems? Regards, Artem Kuchin General Director of IT Legion Ltd. Russia, Moscow www.itlegion.ru matrix@itlegion.ru +7 095 232-0338
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