Date: Fri, 12 Nov 2010 14:13:19 +0200 From: Andriy Gapon <avg@freebsd.org> To: Alexander Zagrebin <alexz@visp.ru> Cc: freebsd-fs@freebsd.org, freebsd-stable@freebsd.org Subject: Re: 8.1-STABLE: problem with unmounting ZFS snapshots Message-ID: <4CDD2F5F.2000902@freebsd.org> In-Reply-To: <D9ABDE54892A4D9285FE7FFA6E1B1B69@vosz.local> References: <D9ABDE54892A4D9285FE7FFA6E1B1B69@vosz.local>
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on 12/11/2010 13:57 Alexander Zagrebin said the following: > 2. the umount is waiting for disk > #ps | egrep 'PID|umount' > PID TT STAT TIME COMMAND > 958 0 D+ 0:00,04 umount /mnt > # procstat -t 958 > PID TID COMM TDNAME CPU PRI STATE WCHAN > 958 100731 umount - 3 133 sleep mntref procstat -kk <pid> > Can anybody confirm this issue? > Any suggestions? > ktrace-ing umount could also be useful. -- Andriy Gapon
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