Date: Mon, 21 Jul 2003 23:20:10 -0400 From: Mik Firestone <mik@milkyway.stdio.com> To: Bruce Cran <bruce@cran.org.uk> Cc: current@freebsd.org Subject: Re: FreeBSD 5.1-R kernel panic Message-ID: <20030722032009.GA76667@terra.milkyway.stdio.com> In-Reply-To: <20030721231831.GA2795@buffy.brucec.backnet> References: <Law10-OE203riCTVuy100012a52@hotmail.com> <20030721222407.GA76150@terra.milkyway.stdio.com> <20030721184311.GB54315@technokratis.com> <20030721231831.GA2795@buffy.brucec.backnet>
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On Tue, Jul 22, 2003 at 12:18:31AM +0100, Bruce Cran wrote: > On Mon, Jul 21, 2003 at 06:43:11PM +0000, Bosko Milekic wrote: > > > > > > On Mon, Jul 21, 2003 at 06:24:07PM -0400, Mik Firestone wrote: > > > For what it is worth, I am having the exact same problem. I cvsup'd and > > > builtworld on Sunday, July 20, and my machine has been crashing about every > > > half-hour since. It starts slowing down, the load average begins to > > > climb until it eventually grinds to a halt. If I wait long enough, I > > > will see the same panic Stephane saw. > > > > > > Doing a ps -auxw shows that usb0 is using the vast majority of the CPU > > > time before the grinding halt. I have tried leaving the machine in > > > multi-user and sigle-user mode with the same results. I have attempted > > > to compile a new kernel that does not have the USB stuff compiled in, > > > but my machine won't stay running long enough. > > > > > > I do have the debugger compiled in, but I do not know enough of what I > > > am doing to provide reasonable information to the list. If somebody > > > can tell me the commands to run in the debugger, I will let my machine > > > panic again and grab that data. > > > > > > Mik > > > > Does reverting to pre-July 20 get rid of your problem? Note that the > > originator of the first Email mentionned that he is running what > > appeared to be stock 5.1-RELEASE, which may or may not be related to > > what you're seeing. > > > > If reverting to pre-July 20 gets rid of your problem, perhaps we can > > figure out what commit triggered this behavior for you. Also, do you > > have PAE enabled? > > > > It sounds like the same or similar problem reported in the 'USB crappiness' > thread - the system slows down, and then any command crashes the system with > the error about kmem. I posted a backtrace to the problem in usb_mem.c, and > the developer has posted a temporary fix - it was a problem with bus_dma, > it was allocating too much memory and running out of kernel memory. > > If the kernel debugger is compiled in, the system should drop to the db> > prompt when it panics. Type 'tr' and post the results it gives. This > panic appears to stop memory dumps working, otherwise you could set the > dumpdev variable in rc.conf also get > the source listing of where the problem occurs: the FreeBSD Developers Handbook > has more information. > > -- > Bruce Cran > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" Thanks! I found the thread in the archives and applied the patch. My machine is now up and seems to be much happier. Mik
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