Date: Thu, 22 Jan 2004 23:44:55 -0600 From: Chip Norkus <wd@teleri.net> To: current@freebsd.org Subject: Re: Strange behaviour Message-ID: <20040123054454.GI58188@teleri.net> In-Reply-To: <F5992EE4-4C7D-11D8-9DA3-000A95DBB47C@ca.com> References: <EE3D3FBAFFCAED448C21C398FDAD91AC0108DE@EBE1.gc.nat> <20040121182730.GB40652@xor.obsecurity.org> <20040121183959.GA25589@electra.cse.Buffalo.EDU> <20040121184307.GA41138@xor.obsecurity.org> <F5992EE4-4C7D-11D8-9DA3-000A95DBB47C@ca.com>
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On Thu Jan 22, 2004; 12:54PM +1100 Lachlan O'Dea propagated the following: [snip] > > I have exactly the same behaviour on a Dell PowerEdge 2500, including > progressive degradation as more processes get hung on filesystem > access. I don't need network activity to recreate it. Makewhatis at the > end of installworld in single user mode all on the same local partition > will hang forever on getblk. The find commands run by the daily cron > jobs almost always hang as well. It seems to be triggered by certain > patterns of filesystem use. Please see: > Let me throw in a 'me too' here. I've had the same problem on 2650s and 1650s, if a process gets stuck in getblk/ufs states eventually the machine will become almost unuseable and will require a reboot. If a developer wants to check this out I have a spare machine that can be used for futzing, and I can provide serial console access. > <http://docs.freebsd.org/cgi/mid.cgi?D90B8DC2-471E-11D8-A84C > - -000A95DBB47C> > > and I believe this thread is discussing the same thing: > > <http://docs.freebsd.org/cgi/mid.cgi?7mznedas57.wl>; (includes some DDB > output) > > I have DEBUG_LOCKS in my kernel, but I'm not really sure what to do > with it. I haven't heard of DEBUG_VFS_LOCKS before, I'll look into it. > 'me too' here too. :/ > - -- > Lachlan O'Dea > Computer Associates > Programmer > tel: +61 3 8416 5627 > fax: +61 3 8416 5810 > mobile: +61 412 390 650 > odela01@ca.com > [snip] -chip -- personal: chip norkus; renaissance hacker; wd@teleri.net work: systems engineer @ lunarpages, inc.; chip@lunarpages.com info: finger wd@teleri.net for plan or keys; http://telekinesis.org
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