Date: Wed, 14 Mar 2001 20:05:18 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: John Baldwin <jhb@FreeBSD.org> Cc: alpha@FreeBSD.org Subject: Re: Deadlocks, whee! Message-ID: <15024.5454.615759.779564@grasshopper.cs.duke.edu> In-Reply-To: <XFMail.010314164809.jhb@FreeBSD.org> References: <15024.3948.98001.417245@grasshopper.cs.duke.edu> <XFMail.010314164809.jhb@FreeBSD.org>
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John Baldwin writes: > > On 15-Mar-01 Andrew Gallatin wrote: > > > > John Baldwin writes: > > > Hi all, > > > > > > I managed to deadlock my alpha yesterday with a -j 4 buildworld. > > Previously it > > > would die when it trapped with a raised IPL as a blockable mtx_lock() of > > lockmgr > > > in trap(). I'm not sure if these two things are related or not. I'll try > > a > > > normal world without -j X today to see if it fairs better. Just FYI for > > those > > > running current that heavy load may deadlock right now. :( > > > > The machine is really deadlocked, or just one process is wedged and > > the buildworld stalled? > > Well, no messages on the console, no ddb (I have vidconsole), no pings, etc. > So interrupts aren't getting through, or if they are their threads aren't > running, and since I use preemption on this alpha, that is very, very unlikely. > I'm assuming it is genuinely deadlocked or possibly spinning somewhere with a > raised IPL. Do you have a halt button? If so, what does the console tell you your PC and RA are? Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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