Date: Wed, 19 Jun 2013 20:19:16 +0200 From: Ian FREISLICH <ianf@clue.co.za> To: Gleb Smirnoff <glebius@FreeBSD.org> Cc: jeffr@FreeBSD.org, Andre Oppermann <andre@freebsd.org>, current@freebsd.org Subject: Re: Panic in tcp_input Message-ID: <E1UpMyU-0005fA-5r@clue.co.za> In-Reply-To: <20130619123131.GC1214@glebius.int.ru> References: <20130619123131.GC1214@glebius.int.ru> <51C17A3B.2030809@freebsd.org> <E1UpEPp-0000iW-Lq@clue.co.za> <E1UpEmc-0000ls-7Q@clue.co.za> <51C1A1FE.8040300@freebsd.org>
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Gleb Smirnoff wrote: > A> This seems to be a fallout of the recent UMA changes and its interaction > A> with the per-cpu counter(9) system. > A> > A> Adding in and handing over to Gleb and Jeff as they touched this area last . > > Ian has reported this panic several days before Jeff's changes :( Do you want me to try to find the revision of origin? I have a verified sighting at r251615 and I'm pretty sure I've seen it earlier than that. Subjectively, it seems to have got a lot worse lately. Maybe the "recent UMA changes" have exposed some latent issue? Ian -- Ian Freislich
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