conf/147444: /etc/rc.d/zfs stop not called on reboot & modules
cause system hang
Mykah
mburkhardt at exavault.com
Thu Jun 3 18:10:02 UTC 2010
>Number: 147444
>Category: conf
>Synopsis: /etc/rc.d/zfs stop not called on reboot & modules cause system hang
>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: Thu Jun 03 18:10:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Mykah
>Release: 7.3-RELEASE amd64
>Organization:
ExaVault / DO IT LLC
>Environment:
FreeBSD gluon-int.exavault.com 7.3-RELEASE FreeBSD 7.3-RELEASE #0: Sun Mar 21 05:25:24 UTC 2010 root at driscoll.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
Hardware:
CPU: Quad-Core Xeon L3426
MEM: 16G
CONTROLLER: 3ware 9750-8i (all disks as single-disk units exported individually, except for the OS which is a HW Raid1 = /dev/da0)
ZFS: 10 x 2TB raidz2 currently running defaults. (2TB Hitachi SATA)
ZFS is configured to start @ boot via 'zfs_enable="YES"' in the /etc/rc.conf.
Creation Commands:
# zpool create storage01 raidz2 da1 da2 da3 da4 da5 da6 da7 da8 da9 da10
# zpool add storage01 spare da11 da12
# zfs create storage01/tachyon
# zfs create storage01/iron
# zfs create storage01/boson
# zfs create storage01/hydro
>How-To-Repeat:
Create a pool and then attempt to:
# reboot
or
# shutdown -r now
Result:
Waiting (max 60 seconds) for system process `vnlru' to stop...done.
Waiting (max 60 seconds) for system process `bufdaemon' to stop...done.
Waiting (max 60 seconds) for system process `syncer' to stop...done.
Syncing disks, vnodes remaining... (etc, etc).. done
All buffers synced.
zfs_umount:1005[0] Force unmount is experimental - report any problems.
zfs_umount:1005[0] Force unmount is experimental - report any problems.
zfs_umount:1005[0] Force unmount is experimental - report any problems.
zfs_umount:1005[0] Force unmount is experimental - report any problems.
zfs_umount:1005[0] Force unmount is experimental - report any problems.
Uptime: <TIME>
--- HANGS ----
>Fix:
Note: You can get a clean 'shutdown -r now' after these edits. Unfortunately, 'reboot' still does not function and hangs the system. I believe 'reboot' does not trigger rc.shutdown and hence does not fire off the 'rcorder -k shutdown /etc/rc.d/*' that a 'shutdown' would.
Edit /etc/rc.d/zfs as follows:
ADD below '#REQUIRE: mountcritlocal':
# KEYWORD shutdown
ADD @ bottom of zfs_stop_main() subroutine/function:
kldunload zfs.ko opensolaris.ko
sleep 5
kldunload zfs.ko opensolaris.ko
sleep 5
>Release-Note:
>Audit-Trail:
>Unformatted:
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