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Date:      Thu, 8 Jun 2017 16:20:58 -0700
From:      Tim Gustafson <tjg@ucsc.edu>
To:        Xin LI <delphij@gmail.com>
Cc:        freebsd-fs <freebsd-fs@freebsd.org>
Subject:   Re: ZFS Commands In "D" State
Message-ID:  <CAPyBAS7PmwTLjp4KPj1%2BcS4N1pUojVyrbB=p3a_O=7NHai5CEA@mail.gmail.com>
In-Reply-To: <CAPyBAS44c=jb5AJprWSYHSHje0oBLAcoCqJKZNsrA%2BWuh4=9WA@mail.gmail.com>
References:  <CAPyBAS6Du=059Pef=wUC9D61mUEd%2BJXBxt6ydAdjypVYJptnvQ@mail.gmail.com> <CAGMYy3vUsfzTYknt8yENzP8xqR0V4wkNfSDmtuS65U=yL1trzQ@mail.gmail.com> <CAPyBAS44c=jb5AJprWSYHSHje0oBLAcoCqJKZNsrA%2BWuh4=9WA@mail.gmail.com>

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By the way, the output of the procstat command changed after it ran
for a while (but it's still in the "D" state):

  PID    TID COMM             TDNAME           KSTACK
 1646 101975 zfs              -                mi_switch+0xd2
sleepq_wait+0x3a _cv_wait+0x194 txg_wait_synced+0x85
dsl_sync_task+0x205 dsl_destroy_snapshot+0x87 zfs_ioc_destroy+0x3c
zfsdev_ioctl+0x5f5 devfs_ioctl_f+0x13f kern_ioctl+0x2d4
sys_ioctl+0x171 amd64_syscall+0x4ce Xfast_syscall+0xfb

-- 

Tim Gustafson
BSOE Computing Director
tjg@ucsc.edu
831-459-5354
Baskin Engineering, Room 313A

To request BSOE IT support, please visit https://support.soe.ucsc.edu/
or send e-mail to help@soe.ucsc.edu.



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