Date: Wed, 14 Mar 2001 17:22:00 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: alpha@FreeBSD.org Subject: Re: Deadlocks, whee! Message-ID: <XFMail.010314172200.jhb@FreeBSD.org> In-Reply-To: <15024.5454.615759.779564@grasshopper.cs.duke.edu>
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On 15-Mar-01 Andrew Gallatin wrote: > > 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? I need to crack the case open and move the jumper over so that it does a halt instead of a reboot. :( I just need to get off my duff and do that (along with 10 million other things) and then take it from there. > Drew -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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