Date: Sun, 28 Jul 2002 14:54:55 -0700 (PDT) From: David Wolfskill <david@catwhisker.org> To: current@FreeBSD.ORG, tanimura@r.dl.itc.u-tokyo.ac.jp Subject: Re: A fix of recent bugs in swapping in/out a process Message-ID: <200207282154.g6SLstjU072328@bunrab.catwhisker.org> In-Reply-To: <200207281252.g6SCpvSH064272@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp>
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>Date: Sun, 28 Jul 2002 21:51:57 +0900 >From: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> >If you are having a trouble of a broken thread state (eg a thread with >TDS_RUNQ on no run queue) or a mysterious page fault on a kernel >memory (probably in mi_switch()), you may want to try my patch at: >http://people.FreeBSD.org/~tanimura/patches/procswap.diff.gz I was having this kind of trouble with my (UP) laptop, but not my (SMP) build machine. However, the laptop may also be having some hardware issues, so I didn't press the issue.... But after getting another panic after trying to reboot after installing today's -CURRENT on the laptop, I applied that patch, and so far, things seem better. What I did: * Fetched the patch & unzipped it. * cd /usr/src/sys && patch -p6 <~/PATCHES/procswap.diff (I actually ran "patch -C" first, to verify that things looked good.) * cd /usr/src && make kernel KERNCONF=LAPTOP_30W * reboot (after a few syncs, in case that might help). * cd /usr/src && date && make installworld && date && \ mergemaster -u 0022 -i && date && df -k (I.e., re-do the "make installworld & mergemaster steps from the install where I had a panic on reboot, both to have some assurance that files I'd rather have didn't get truncated, and to serve as a first- order test of the patched code.) * reboot * Run a few tests. So far, so good. Thanks! Cheers, david (links to my resume at http://www.catwhisker.org/~david) -- David H. Wolfskill david@catwhisker.org To paraphrase David Hilbert, there can be no conflicts between Microsoft and the discipline of systems administration, since they have nothing in common. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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