Date: Sun, 4 Apr 2004 17:20:15 -0400 From: Garance A Drosihn <drosih@rpi.edu> To: Martin Blapp <mb@imp.ch>, current@freebsd.org Cc: dillon@backplane.com Subject: Re: Possible race in the filesystem code (softupdates) ? Message-ID: <p060204e9bc962b225fba@[128.113.24.47]> In-Reply-To: <20040404224036.K37637@cvs.imp.ch> References: <20040404224036.K37637@cvs.imp.ch>
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At 10:55 PM +0200 4/4/04, Martin Blapp wrote: >Hi, > >During testing I found that the following procedure is pretty >dangerous and leads sometimes to a panic(): For the times when it does not cause a panic, does it cause any other problems? Ie, would it be better to say "procedure is pretty dangerous *because* it sometimes causes a panic"? Or is there some other problem in addition to the possible panic? >I'm trying to reproduce it tomorrow for a useful dump. I had it >happen twice but was not able to take any notices because it >happenend on a productive server. I can exclude any hardware >problems. We use current from a week ago. What kind of hardware are you doing this on? Is it multi-CPU? Does it have a lot of RAM? (I am just curious...) Once you have a dump, you might want to include Kirk McKusick <mckusick@beastie.mckusick.com> on a message with a pointer to the dump. I don't know how often he reads freebsd-current. -- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu
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