Date: Tue, 4 Mar 1997 22:48:55 +0100 (MET) From: Joachim.Jaeckel@it-mannesmann.de To: FreeBSD-gnats-submit@freebsd.org Subject: kern/2877: Fatal Trap 12: page fault while in kernel mode Message-ID: <199703042148.WAA00423@dreamland.compuserve.com> Resent-Message-ID: <199703042150.NAA17877@freefall.freebsd.org>
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>Number: 2877 >Category: kern >Synopsis: Fatal Trap 12: page fault while in kernel mode >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Mar 4 13:50:01 PST 1997 >Last-Modified: >Originator: Joachim Jaeckel >Organization: Lucke EDV GmbH >Release: FreeBSD 2.1.6 i386 >Environment: Dell OptiPlex 466/Le (486 DX/2 66 Mhz) PS/2 Mouse Cirrus CL-GD5429 VGA on Board Video-Controller 16 MB Main-Memory 1 SCSI HD 1 GB with ID 0 (the first 600 MB for Windo... and the second partition of 192 MB for FreeBSD [64 MB /, 64 MB SWAP and 64 MB /var]) 1 SCSI CD-ROM with ID 1 1 SCSI HD 2 GB with ID 6 (nearly 900 MB for FreeBSD /usr) 1 IDE CD-ROM jumpered as MASTER but not used in my kernel!!! (By the way: I compiled the probing for a NE2000 Ethernet-Card into the kernel, but at the moment, there is no one in my computer.) >Description: In the case i make some swap-intensive compiles, after a while the following error-message appears: Fatal trap 12: page fault while in kernel mode fault virtual address = 0x218 fault code = supervisor read, page not present instruction pointer = 0x8 : 0xf010f175 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres1, def32 1, gran1 processor eflags = interrupt enabled, resume, IOPL=0 current process = 4(update) interrupt mask = net tty bio panic: page fault I don't think that this is a hardware problem, because my System runs under OS/2 and Linux without any problems. (At the moment :-)) My last thought was, that it could be a problem with a too little Swap-Space, but the *swapinfo* program shows only a usage maximum of 57%. >How-To-Repeat: That's no problem for me to reproduce this error, every time I make some swap-intensive compiles, this error comes up. (To reproduce I try to compile *ddd* and *plan* at one time) >Fix: >Audit-Trail: >Unformatted:help
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