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[Bug 568319] DM lockup causes filesystem failure
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sat, 13 Feb 2010 23:39:43 +0000
  • Message-id: <20100213233943.928C424551B@xxxxxxxxxxxxxxxxxxxxxx>
http://bugzilla.novell.com/show_bug.cgi?id=568319

http://bugzilla.novell.com/show_bug.cgi?id=568319#c13


Carlos Robinson <carlos.e.r@xxxxxxxxxxxx> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
Info Provider|carlos.e.r@xxxxxxxxxxxx |

--- Comment #13 from Carlos Robinson <carlos.e.r@xxxxxxxxxxxx> 2010-02-13
23:39:41 UTC ---
Ok, done. I got a lock simply by copying files, with this script:

#!/bin/bash

echo One
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.one.iso
echo Two
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.two.iso
echo Three
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.three.iso
echo Four
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.four.iso
Echo Five
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.five.iso
echo Six
cp
/mnt/Ext/Huge/copia_nimrodel/Grande/cer/distros/openSUSE-11.2-GNOME-LiveCD-i686.iso
openSUSE-11.2-GNOME-LiveCD-i686.six.iso

l
df -h


I started four xterms, and on each one I run the above script copying the iso
image of 11.2 CD to one fo the four crypto loop device (I have four of DVD
size). Ie, four different copy processes, one on each loop.

The output went like this wen it halted:

----------- xterm 1 reads ---------------------------------
@Elessar:/mnt/crypta.mm_dvd1.x> test_copy
One
Two
Three
----------- xterm 2 reads ---------------------------------
@Elessar:/mnt/crypta.mm_dvd2.x> test_copy
One
Two
Three
----------- xterm 3 reads ---------------------------------
@Elessar:/mnt/crypta.mm_dvd3.x> test_copy
One
Two
----------- xterm 4 reads ---------------------------------
@Elessar:/mnt/crypta.mm_dvd4.x> test_copy
One
Two
Three
-----------------------------------------------------------


Elessar:~ # mount
/dev/sdd9 on / type reiserfs (rw,acl,user_xattr)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
debugfs on /sys/kernel/debug type debugfs (rw)
udev on /dev type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/sdd3 on /boot type ext2 (rw,acl,user_xattr)
/dev/sdd8 on /data/vmware type xfs (rw)
/dev/sdd12 on /data/storage_a type xfs (rw)
/dev/sdf14 on /data/storage_c type xfs (rw)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
securityfs on /sys/kernel/security type securityfs (rw)
/dev/mapper/crmm_dvd_f1x on /mnt/crypta.mm_dvd1.x type xfs (rw,_netdev,noatime)
/dev/mapper/crmm_dvd_f2x on /mnt/crypta.mm_dvd2.x type xfs (rw,_netdev,noatime)
/dev/mapper/crmm_dvd_f3x on /mnt/crypta.mm_dvd3.x type xfs (rw,_netdev,noatime)
/dev/mapper/crmm_dvd_f4x on /mnt/crypta.mm_dvd4.x type xfs (rw,_netdev,noatime)
/dev/sdb5 on /mnt/Ext/Huge type xfs
(rw,nosuid,nodev,_netdev,noatime,nodiratime)
Elessar:~ #
Elessar:~ # dmsetup table
crmm_dvd_f3x: 0 9177656 crypt aes-cbc-essiv:sha256
0000000000000000000000000000000000000000000000000000000000000000 0 7:2 2056
crmm_dvd_f1x: 0 9177656 crypt aes-cbc-essiv:sha256
0000000000000000000000000000000000000000000000000000000000000000 0 7:0 2056
crmm_dvd_f4x: 0 9177656 crypt aes-cbc-essiv:sha256
0000000000000000000000000000000000000000000000000000000000000000 0 7:3 2056
crmm_dvd_f2x: 0 9177656 crypt aes-cbc-essiv:sha256
0000000000000000000000000000000000000000000000000000000000000000 0 7:1 2056


output of lsof will follow.

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