Date: Tue, 14 Jan 1997 08:14:58 -0600 (CST) From: spatula@gulf.net To: FreeBSD-gnats-submit@freebsd.org Subject: kern/2494: page faults Message-ID: <199701141414.IAA00430@spatula.gulf.net> Resent-Message-ID: <199701141420.GAA14679@freefall.freebsd.org>
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>Number: 2494 >Category: kern >Synopsis: constant page faults in kernel mode >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jan 14 06:20:06 PST 1997 >Last-Modified: >Originator: Nick Johnson >Organization: >Release: FreeBSD 2.1-STABLE i386 (2.1.5-RELEASE) >Environment: Pentium-100 machine, 32 megs of ram. Typical FBSD 2.1.5 install. >Description: System pukes upon itself regularly. The debugger in the kernel indicates that the cause of death is a page fault while in kernel mode. This is almost always the error. Further information indicates that the error is a result of a page-not-present. Severity and frequency of the problem increase when external cache is turned on, and decreases slighly when it is disabled. Severity and frequency also appears to increase if X-windows is run. Hardware has been thoroughly tested for memory controller faults and bad cache/simms with everything testing out fine. >How-To-Repeat: Boot. >Fix: Unknown at this time; some help can be found by disabling the external cache memory, but the problem still occurs. >Audit-Trail: >Unformatted: <Synopsis of the problem (one line)> <[ non-critical | serious | critical ] (one line)> <[ low | medium | high ] (one line)> <Problem category (as listed above)> <[ sw-bug | doc-bug | change-request | support ] (one line)>
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