From: Anand Jain <Anand.Jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: device failure hangs the system
Date: Fri, 01 Jul 2011 17:25:50 +0800 [thread overview]
Message-ID: <4E0D929E.7030704@oracle.com> (raw)
hi,
Following test case causes my remote system to hard-hang and does
not respond to any key strokes.
-----------
# btrfs fi show
failed to read /dev/sr0
Label: none uuid: 75ad3c9f-f661-498e-8c13-89d4e4c58312
Total devices 3 FS bytes used 28.00KB
devid 1 size 465.76GB used 2.02GB path /dev/sdb
devid 3 size 465.76GB used 2.01GB path /dev/sdd
devid 2 size 465.76GB used 1.01GB path /dev/sdc
Btrfs v0.19-35-g1b444cd
------------
Stopping the disk
------------
# echo 1 > /sys/block/sdd/device/delete
------------
------------
# dmesg | tail
sd 3:0:0:0: [sdd] Stopping disk
::
#
------------
------------
# btrfs fi show
failed to read /dev/sr0
Label: none uuid: 75ad3c9f-f661-498e-8c13-89d4e4c58312
Total devices 3 FS bytes used 28.00KB
devid 1 size 465.76GB used 2.02GB path /dev/sdb
devid 2 size 465.76GB used 1.01GB path /dev/sdc
*** Some devices missing
Btrfs v0.19-35-g1b444cd
------------
and the following command hangs the system.
-------------
# btrfs fi balance /btrfs
-------------
Any idea if this is an known issue ? OR if there is any better way
to fail a disk (or a loop disk) for testing.
(something similar to cfgadm -c unconfigure in solaris).
Thanks
-Anand
next reply other threads:[~2011-07-01 9:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-01 9:25 Anand Jain [this message]
2011-07-01 9:42 ` device failure hangs the system Anand Jain
2011-07-01 9:44 ` Roman Mamedov
2011-07-01 20:14 ` Josef Bacik
2011-07-07 9:35 ` Anand Jain
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