Date: Sun, 09 Jan 2011 10:00:51 +0100 From: Attila Nagy <bra@fsn.hu> To: Martin Matuska <mm@FreeBSD.org> Cc: freebsd-fs@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Re: New ZFSv28 patchset for 8-STABLE Message-ID: <4D297943.1040507@fsn.hu> In-Reply-To: <4D0A09AF.3040005@FreeBSD.org> References: <4D0A09AF.3040005@FreeBSD.org>
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On 12/16/2010 01:44 PM, Martin Matuska wrote: > Hi everyone, > > following the announcement of Pawel Jakub Dawidek (pjd@FreeBSD.org) I am > providing a ZFSv28 testing patch for 8-STABLE. > > Link to the patch: > > http://people.freebsd.org/~mm/patches/zfs/v28/stable-8-zfsv28-20101215.patch.xz > I've got an IO hang with dedup enabled (not sure it's related, I've started to rewrite all data on pool, which makes a heavy load): The processes are in various states: 65747 1001 1 54 10 28620K 24360K tx->tx 0 6:58 0.00% cvsup 80383 1001 1 54 10 40616K 30196K select 1 5:38 0.00% rsync 1501 www 1 44 0 7304K 2504K zio->i 0 2:09 0.00% nginx 1479 www 1 44 0 7304K 2416K zio->i 1 2:03 0.00% nginx 1477 www 1 44 0 7304K 2664K zio->i 0 2:02 0.00% nginx 1487 www 1 44 0 7304K 2376K zio->i 0 1:40 0.00% nginx 1490 www 1 44 0 7304K 1852K zfs 0 1:30 0.00% nginx 1486 www 1 44 0 7304K 2400K zfsvfs 1 1:05 0.00% nginx And everything which wants to touch the pool is/becomes dead. Procstat says about one process: # procstat -k 1497 PID TID COMM TDNAME KSTACK 1497 100257 nginx - mi_switch sleepq_wait __lockmgr_args vop_stdlock VOP_LOCK1_APV null_lock VOP_LOCK1_APV _vn_lock nullfs_root lookup namei vn_open_cred kern_openat syscallenter syscall Xfast_syscall
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