Date: Wed, 4 Oct 2006 17:16:53 -0400 From: Vivek Khera <vivek@khera.org> To: Kostik Belousov <kostikbel@gmail.com> Cc: stable@freebsd.org Subject: Re: ffs snapshot lockup Message-ID: <40CE3CF0-49D2-4335-A0B8-34B5251E9E19@khera.org> In-Reply-To: <20061003084315.GA89654@deviant.kiev.zoral.com.ua> References: <917B087C-5E13-4D7F-94FA-95CB0E5C1884@khera.org> <20060922190328.GA64849@xor.obsecurity.org> <555B84D2-520F-44D6-84D6-CF9CE7EE47C7@khera.org> <20060922203654.GA65693@xor.obsecurity.org> <847DD3A5-D5DD-4D3E-B755-64B13D1DA506@khera.org> <20061003084315.GA89654@deviant.kiev.zoral.com.ua>
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--Apple-Mail-19--846696678 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On Oct 3, 2006, at 4:43 AM, Kostik Belousov wrote: >> Details are posted at http://vivek.khera.org/scratch/crashlogs/ >> >> I have the crashdumps available to a kernel hacker upon request (i'd >> rather not make them generally available to the public...) >> > It seems that you have snapshotted fs exported by nfsd ? At least, > 18a is > definitely the case. I have the patch (for current) that shall fix > the issue. > In fact, you need two patches: As per advice of Kris Kenneway, I turned off the software watchdog to rule out that as my problem. Then I ran a level 3 dump. Dump of root fs went fine, then it proceeded to do /usr. After a few minutes it locked up. Typescript 20 at the above URL shows the debugging info from the break into debugger of the locked up system. Since /usr was locked, nobody could log in at all. The network load was minimal at the time. I had everyone log out and close mail etc. --Apple-Mail-19--846696678--
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