Date: Wed, 14 Jan 2009 14:16:37 +0000 From: Pete French <petefrench@ticketswitch.com> To: rwatson@FreeBSD.org Cc: freebsd-stable@freebsd.org, drosih@rpi.edu, rblayzor.bulk@inoc.net Subject: Re: Big problems with 7.1 locking up :-( Message-ID: <E1LN6Xt-0001Je-On@dilbert.ticketswitch.com> In-Reply-To: <alpine.BSF.2.00.0901141339390.24256@fledge.watson.org>
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> effect on control flow, unlike, say, WITNESS, which significantly distorts > timing. Is there any chance you picked up any of the recent fixes that went > into RELENG_7 without noticing, and that perhaps one of those did it? With I'm pretty certian of that - I hav just been changing kernel config files, I havent actually csup'd at all. > regard to what to do: if you didn't pick up a fix without noticing, yeah, I > think it's worth testing the hypothesis that BREAK_TO_DEBUGGER fixed (or at > least, masked) the problem. OK. I think I need at leats 4 kernels to try here: GENERIC (which should show the problenm), my original DEBUG (which also shows the problem) plus both of those with BREAK_TO_DEBUGGER included to see if that fixes it. Can I just add BREAK_TO_DEBUGGER on its own to a config file ? I was wondering if I need to include one of the other debugger options so that it has something to break to ? > FWIW, I suspect the various reports we are seeing reflect more than one > problem, and that they must be relatively edge-case individually but reports > of a few problems have lead to more "coming out of the woodwork". Obviously, > the problems are not edge-case to the people experiencing them... I was thinking that too - I've been guilty of this in the past too, lumping my problem in with others under the asusmption that it's all the same. This is onbiously pretty rare - out of 24 of the HP servers the problems only crops up on 4 of them. But there is nothing dfferent about those 4. I will let you know what my various kerenl compiles give me - am buolding again from scratch, which is slow with WITNESS enabled. -pete.
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