Date: Sun, 07 Dec 2014 04:31:45 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: lev@FreeBSD.org, Wojciech Puchar <wojtek@puchar.net>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: 10.1-STABLE one week old from svn - random hangs Message-ID: <548448B1.20907@freebsd.org> In-Reply-To: <54843BB3.2000602@FreeBSD.org> References: <alpine.BSF.2.11.1412071035550.697@laptop> <54843BB3.2000602@FreeBSD.org>
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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" >
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