Date: Mon, 10 Mar 2014 11:39:39 GMT From: Gordon Yeu <kmd@kmd.twbbs.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/187414: ZFS Write Deadlock Message-ID: <201403101139.s2ABddJS069144@cgiserv.freebsd.org> Resent-Message-ID: <201403101140.s2ABe1gF055845@freefall.freebsd.org>
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>Number: 187414 >Category: kern >Synopsis: ZFS Write Deadlock >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Mar 10 11:40:00 UTC 2014 >Closed-Date: >Last-Modified: >Originator: Gordon Yeu >Release: 8.4-STABLE >Organization: >Environment: FreeBSD kmd.twbbs.org 8.4-STABLE FreeBSD 8.4-STABLE #6 r262357: Sun Feb 23 18:38:39 CST 2014 root@kmd.twbbs.org:/usr/obj/usr/src/sys/MERCURY amd64 >Description: Just did a periodical update to 8.4-STABLE r262357 on a self-build home server. The only change I did after update is upgrade zpool version to latest (version 28). My zpool is in mirror configuration, built from dual Seagate 3TB hard drives (ST3000DM001). Moving large files in ~4GB size hangs the target directory, and Bonnie++ leads to deadlock as well. So I believe it was caused by large write operations. Here are logs for both cases. mv: procstat -kk -a http://pastebin.com/WManZzbv bonnie++: procstat -kk -a http://pastebin.com/fe2bmbbY bonnie++: kgdb (thread apply all bt) http://pastebin.com/kdm5xQwM >How-To-Repeat: run bonnie++ and set -d scratch-dir on ZFS. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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