Date: 18 Sep 2003 08:59:17 -0000 From: John Gillis <zefram@zefram.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/56976: Random panic on reading virtual memory Message-ID: <20030918085917.500.qmail@boobookittyfuck.zefram.net> Resent-Message-ID: <200309180900.h8I90YIB009205@freefall.freebsd.org>
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>Number: 56976 >Category: kern >Synopsis: Random panic on reading virtual memory >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 Sep 18 02:00:34 PDT 2003 >Closed-Date: >Last-Modified: >Originator: John Gillis >Release: FreeBSD 4.8-STABLE i386 >Organization: >Environment: System: FreeBSD boobookittyfuck.zefram.net 4.8-STABLE FreeBSD 4.8-STABLE #3: Sun Aug 17 04:06:58 EDT 2003 zefram@boobookittyfuck.zefram.net:/usr/obj/usr/src/sys/BOOBOOKITTYFUCK i386 Developer machine running X and KDE, using an nVidia board. nVidia's drivers seem to make X eat alot of memory (nearly 1G before crash). AMD XP 2000+ on a ASUS board, 512M DDR 2100 RAM. IBM 15G drive with 512M VM partition. I was using portupgrade at the time of the crash. >Description: Not much to describe, my computer randomly shut off. Here's some useful information (I hope). First is of course the error from /v/l/messages, then I ran nm on the kernel (sorry, it was not in debug). Error appears to happen 44 double words (however long an instruction pointer is) into vm_page_lookup. Anything I can do to be of help, please ask. I wonder if it could be a bad sector or some such on the hard drive. Any thoughts? Any way to check? ------ Sep 18 04:34:26 boobookittyfuck /kernel: Fatal trap 12: page fault while in kernel mode Sep 18 04:34:26 boobookittyfuck /kernel: fault virtual address = 0x13 Sep 18 04:34:26 boobookittyfuck /kernel: fault code = supervisor read, page not present Sep 18 04:34:26 boobookittyfuck /kernel: instruction pointer = 0x8:0xc022ceb0 Sep 18 04:34:26 boobookittyfuck /kernel: stack pointer = 0x10:0xe05cee34 Sep 18 04:34:26 boobookittyfuck /kernel: frame pointer = 0x10:0xe05cee3c Sep 18 04:34:26 boobookittyfuck /kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Sep 18 04:34:26 boobookittyfuck /kernel: = DPL 0, pres 1, def32 1, gran 1 Sep 18 04:34:26 boobookittyfuck /kernel: processor eflags = interrupt enabled, resume, IOPL = 0 Sep 18 04:34:26 boobookittyfuck /kernel: current process = 90949 (sh) Sep 18 04:34:26 boobookittyfuck /kernel: interrupt mask = net bio cam Sep 18 04:34:26 boobookittyfuck /kernel: trap number = 12 Sep 18 04:34:26 boobookittyfuck /kernel: panic: page fault ------- > nm -n /kernel | grep c022ce c022ce84 T vm_page_lookup c022cee0 T vm_page_rename >How-To-Repeat: Running X & KDE for a week and a half, which ate up alot of virtual memory. Then compiling. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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