From owner-freebsd-hackers@FreeBSD.ORG Sun Dec 7 12:32:14 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A695C5CF; Sun, 7 Dec 2014 12:32:14 +0000 (UTC) Received: from elvis.mu.org (elvis.mu.org [IPv6:2001:470:1f05:b76::196]) by mx1.freebsd.org (Postfix) with ESMTP id 933FDC35; Sun, 7 Dec 2014 12:32:14 +0000 (UTC) Received: from AlfredMacbookAir.local (c-76-21-10-192.hsd1.ca.comcast.net [76.21.10.192]) by elvis.mu.org (Postfix) with ESMTPSA id DAD64341F84E; Sun, 7 Dec 2014 04:32:13 -0800 (PST) Message-ID: <548448B1.20907@freebsd.org> Date: Sun, 07 Dec 2014 04:31:45 -0800 From: Alfred Perlstein Organization: FreeBSD User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: lev@FreeBSD.org, Wojciech Puchar , FreeBSD Hackers Subject: Re: 10.1-STABLE one week old from svn - random hangs References: <54843BB3.2000602@FreeBSD.org> In-Reply-To: <54843BB3.2000602@FreeBSD.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Dec 2014 12:32:14 -0000 Can you enable crashdumps please and then send a traceback? https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html These two are most helpful: https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html#kerneldebug-obtain https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html On 12/7/14, 3:36 AM, Lev Serebryakov wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > On 07.12.2014 12:40, Wojciech Puchar wrote: > >> The problem. At random moment system I/O stops. If you are running >> top at this moment, there are lots of prosesses stalled in vnread >> or biord. network keeps running, processes that doesn't need I/O >> still runs. >> >> top often reports at least 10MB free memory. >> >> seems like a deadlock. Anyone know that problem. How to trace it >> down? > Looks like I have same problem sometimes. And you could not run any > new process, you could not login on console, but you could switch > virtual consoles & if "top" is running on one of them, it doesn't hang > itself, right? > > I get this typically when "svnsync" synchronize my local FreeBSD repo > mirror and after that FS (UFS2 with SUJ) with my repo is heavily damaged. > > - -- > // Lev Serebryakov AKA Black Lion > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (MingW32) > > iQJ8BAEBCgBmBQJUhDuzXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w > ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRGOTZEMUNBMEI1RjQzMThCNjc0QjMzMEFF > QUIwM0M1OEJGREM0NzhGAAoJEOqwPFi/3EePuI8QANK2Xw8oUrApeMMsCqWs6mGo > NsijmCLWhTBNGLszEk1pD/GQrqVZRIm8qmn3GReknYZzMdiYYc89b+9ou5nZnQfk > +j+ngdBWNTGkxBa5qjBTLSZm2yYZ70rxxIUs4HualK6kgF2CLlLA9XEWlm+pBtCG > ZaBWCP/vH5mBvLk+YUOtZtPlMhC7ckNe4Uq13gSkZRaZBtHy0WZ+1nqZz7Xi1nFx > XBAlcJMUi4c9EAtBJGovKAVXjkIk6TINhDF+76J8aQlL4drliLvRZQjCnulbQecc > VMQP4hFKghmdH1DTSwPX4R44hZd7TF1CW7FNT/qZLyPuZHIcwVYOsH+5gq95liCP > CDCt5N8dF/q8wgyMGRyHv8PCdOA9MK8/6PtZY2KAXdIkfPZ6u0bTMHXPWb3qDWPX > kdYPIKYZ5rzF3oY6Yuk6Mn4OIJ+Aww5FhNQ5ad4IkUty7p06JMt+sw9X9VEbyZYC > ejQ96Tquy9Si2TnjZZbtSySvUZAlJxDT5z5eBvOh9BoexEsrKG8pV1nMv3LMgat8 > 0kKxWTXtkD/NPO4+FGFasV/lSgteXWGjRv3s+g1cqmCSWRn4ed8xhFcLoTzbJLQf > a5E1LGIDGJPsARmfyD1FF1RS/kYdfWlG7BA6mg91zExZpuuS4oFexh4YaAbfjTe/ > oeXgB3qxqhPtvfDmUm+X > =R88v > -----END PGP SIGNATURE----- > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" >