Date: Wed, 17 Jan 2001 20:05:38 +0100 (CET) From: Soren Schmidt <sos@freebsd.dk> To: bright@wintelcom.net (Alfred Perlstein) Cc: rjesup@wgate.com (Randell Jesup), arch@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: HEADS-UP: await/asleep removal imminent Message-ID: <200101171905.UAA18132@freebsd.dk> In-Reply-To: <20010117105226.V7240@fw.wintelcom.net> from Alfred Perlstein at "Jan 17, 2001 10:52:26 am"
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It seems Alfred Perlstein wrote: > > > > > > You and Poul-Henning have to figure out what's going on, no one > > > else is able to reproduce this instability you're talking about. > > > > Oohh you dont read the mailing lists then, there has been plenty > > of reports of hanging -current boxen since SMPng... > > Yes, but none with anything useful. :( Check, but thats because the breakage is the way it is, there *IS* no useful info to pass on, other than it locks up, is that so hard to understand ?? > > > There has to be a way for you guys to get us some reasonable > > > tracebacks or diagnostics instead of just saying "it's broke". > > > > Its close to impossible, the two symptoms I see here are either > > spontanous reboots, or solid hangs where only a reset can get > > you out, so I cant say much other than "it's broke". > > You probably have a much better understanding of low level programming > than I do, you _should_ be able to figure out what's going on. Ohh, thanks for the roses, but I havn't been following the SMP work that closely I thought it was in good hands, thats why I have told you guys that its broken for the last couble of months :) > > So there is nothing special to it guys, you just have to try.. > > Oh btw using a ccd/vinum/ATA-raid thingy makes the problem worse, > > probably due to the higher interrupt rates. > > I will try stacking a vinum over vn striped setup later tonight > to see if this still locks up. > > You're still not telling me what combination of vn/vinum does this, > so I guess I'll have to stumble around in the dark for a bit until > I find the magic combination to find the Danish panic/lockup? I didn't mention vn above, I use the ata-raid thingy with src & obj put on two striped disks each. The main point here being that this changes the way IO's are done... > I think phk just told me that you need a UP kernel to find this, > but he's being pretty vague about it so I don't know. You need sleep :) I said that SMP lockups quickly, UP runs pretty well and only hangs on rare occasions... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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