Date: Sun, 07 Dec 2014 14:36:19 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: 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: <54843BB3.2000602@FreeBSD.org> In-Reply-To: <alpine.BSF.2.11.1412071035550.697@laptop> References: <alpine.BSF.2.11.1412071035550.697@laptop>
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-----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-----
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