Date: Thu, 11 Nov 2004 18:40:57 GMT From: jim feldman <secmgr@jim-liesl.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/73830: kernel panic when raid5 member disk is removed Message-ID: <200411111840.iABIevN5023386@www.freebsd.org> Resent-Message-ID: <200411111850.iABIoN4V010583@freefall.freebsd.org>
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>Number: 73830 >Category: kern >Synopsis: kernel panic when raid5 member disk is removed >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Nov 11 18:50:23 GMT 2004 >Closed-Date: >Last-Modified: >Originator: jim feldman >Release: 5.3-RELEASE >Organization: none >Environment: FreeBSD greybrd.xxx.xxx.xxx 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Tue Nov 9 04:04:09 MST 2004 root@greybrd.xxx.xxx.xxx:/usr/obj/usr/src/sys/GREYBRD i386 >Description: physically removing a gvinum raid5 plex subdisk (to test raid 5 function) causes the system to trap 12 page fault while in kernel mode, instead of continuing on in degraded mode. I pull one of the scsi drives, and then see a bunch of scsi msgs as the system notices the drive has gone. I then get the following: sub-disk down plex degraded g_access failed:6 trap 12 page fault while in kernel mode cpuid=1 apic id=01 fault virtual address =0x18c fault code supervisor write, page not present instruction pointer =0x8:0xc043d72c stack pointer =0x10:cbb17bf0 code segment =base 0x0, limit 0xfff, type 0x1b =DPL0, pres1,def32,gran1 Processor flags interupt enabled, resume,IOPL=0 current process 22(irq11:ahc1) hw is a dual pentium pro, the scsi controller is ahc1: <Adaptec aic7880 Ultra SCSI adapter> port 0x8400-0x84ff mem 0xfdffd000-0xf dffdfff irq 11 at device 15.0 on pci1 >How-To-Repeat: I set up a 4 disk gvinum raid set. I pull one of the drives, and the systems crashes >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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