Date: Thu, 15 Mar 2001 12:34:51 -0800 (PST) From: Matthew Jacob <mjacob@feral.com> To: John Baldwin <jhb@FreeBSD.org> Cc: alpha@FreeBSD.org Subject: Re: Deadlocks, whee! Message-ID: <Pine.LNX.4.21.0103151233510.1824-100000@zeppo.feral.com> In-Reply-To: <XFMail.010315123213.jhb@FreeBSD.org>
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> > On 15-Mar-01 Matthew Jacob wrote: > > btw- it's been true for quite some time that ithreads seem to get dropped and > > not addressed- at least I think that this might be what would explain isp > > timeouts during makeworlds. > > Hmmmmmmmm. When an interrupt comes in we always mark it as needing to be > serviced before we grab the scheduler lock, and in the main ithread loop > we always check that flag after getting the scheduler lock before we > switch out. That _should_ mean that interrupts shouldn't be lost. Indeed! > > > When you deadlock'd your alpha, did you go and brew a cup of tea? What's your > > quantum for determining deadlock? > > No interrupts. I.e. ctrl-alt-esc doesn't work, pings are dropped, etc. I > think it locked up durng an overnight buildworld and I reset it the next day. Hmm... The FreeBSD portion of what I do got swapped out to the /dev/drum, but it's due back in early next week. I'll see where we are then. -matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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