3 Apr
2008
3 Apr
'08
20:13
All KOTDs since 2.6.25-rc7-git2-HEAD_20080331133119
-default are showing the following problem in the logs :
dentry_open called with NULL vfsmount
Apr 3 05:27:05 PC1 kernel: Pid: 5246, comm: kmail Tainted: P N
2.6.25-rc8-HEAD_20080401233651-default #1
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: Call Trace:
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020d7f2>] dump_trace+0xc4/0x52e
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020dc9c>] show_trace+0x40/0x57
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020e421>] dump_stack+0x72/0x7b
Apr 3 05:27:05 PC1 kernel: [<ffffffff8029e322>] dentry_open+0x35/0x88
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d60a7>] :reiserfs:xattr_readdir+0x1d/0x52
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d6226>] :reiserfs:reiserfs_for_each_xattr+0x14a/0x23b
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d633e>] :reiserfs:reiserfs_delete_xattrs+0x12/0x14
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880bdd3a>] :reiserfs:reiserfs_delete_inode+0x72/0x10a
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b16e5>]
generic_delete_inode+0xaf/0x129
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b1776>]
generic_drop_inode+0x17/0x15d
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b0e9d>] iput+0x7c/0x80
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8e8d>] do_unlinkat+0xfc/0x150
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8ef2>] sys_unlink+0x11/0x13
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020c1aa>]
system_call_after_swapgs+0x8a/0x8f
Apr 3 05:27:05 PC1 kernel: [<00007fc424f821a7>]
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: REISERFS warning (device dm-6): jdm-20005
reiserfs_for_each_xattr: Couldn't chown all xattrs (-22)
These kernels are a running on a SUSE-10.3 base system , compiled from source
with defconfig.default. and gcc 4.2.3 20071030 (prerelease)
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3 Apr
3 Apr
21:33
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Markus Koßmann wrote:
All KOTDs since 2.6.25-rc7-git2-HEAD_20080331133119
-default are showing the following problem in the logs :
dentry_open called with NULL vfsmount
I was wondering how long I'd be able to get away with that. Question
answered. I'll come up with a fix today.
- -Jeff
Apr 3 05:27:05 PC1 kernel: Pid: 5246, comm: kmail
Tainted: P N
2.6.25-rc8-HEAD_20080401233651-default #1
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: Call Trace:
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020d7f2>] dump_trace+0xc4/0x52e
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020dc9c>] show_trace+0x40/0x57
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020e421>] dump_stack+0x72/0x7b
Apr 3 05:27:05 PC1 kernel: [<ffffffff8029e322>] dentry_open+0x35/0x88
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d60a7>] :reiserfs:xattr_readdir+0x1d/0x52
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d6226>] :reiserfs:reiserfs_for_each_xattr+0x14a/0x23b
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d633e>] :reiserfs:reiserfs_delete_xattrs+0x12/0x14
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880bdd3a>] :reiserfs:reiserfs_delete_inode+0x72/0x10a
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b16e5>]
generic_delete_inode+0xaf/0x129
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b1776>]
generic_drop_inode+0x17/0x15d
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b0e9d>] iput+0x7c/0x80
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8e8d>] do_unlinkat+0xfc/0x150
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8ef2>] sys_unlink+0x11/0x13
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020c1aa>]
system_call_after_swapgs+0x8a/0x8f
Apr 3 05:27:05 PC1 kernel: [<00007fc424f821a7>]
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: REISERFS warning (device dm-6): jdm-20005
reiserfs_for_each_xattr: Couldn't chown all xattrs (-22)
These kernels are a running on a SUSE-10.3 base system , compiled from source
with defconfig.default. and gcc 4.2.3 20071030 (prerelease)
- --
Jeff Mahoney
SUSE Labs
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6 Apr
6 Apr
07:36
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Jeff Mahoney wrote:
Markus Koßmann wrote:
Or not. I've fixed this problem, but run into others. I'll keep the list
updated.
- -Jeff
All KOTDs since
2.6.25-rc7-git2-HEAD_20080331133119
-default are showing the following problem in the logs :
dentry_open called with NULL vfsmount
I was wondering how long I'd be able to get away with that. Question
answered. I'll come up with a fix today. -Jeff
- --
Jeff Mahoney
SUSE Labs
Apr 3 05:27:05 PC1 kernel: Pid: 5246, comm:
kmail Tainted: P N
2.6.25-rc8-HEAD_20080401233651-default #1
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: Call Trace:
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020d7f2>] dump_trace+0xc4/0x52e
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020dc9c>] show_trace+0x40/0x57
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020e421>] dump_stack+0x72/0x7b
Apr 3 05:27:05 PC1 kernel: [<ffffffff8029e322>] dentry_open+0x35/0x88
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d60a7>] :reiserfs:xattr_readdir+0x1d/0x52
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d6226>] :reiserfs:reiserfs_for_each_xattr+0x14a/0x23b
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880d633e>] :reiserfs:reiserfs_delete_xattrs+0x12/0x14
Apr 3 05:27:05 PC1 kernel:
[<ffffffff880bdd3a>] :reiserfs:reiserfs_delete_inode+0x72/0x10a
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b16e5>]
generic_delete_inode+0xaf/0x129
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b1776>]
generic_drop_inode+0x17/0x15d
Apr 3 05:27:05 PC1 kernel: [<ffffffff802b0e9d>] iput+0x7c/0x80
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8e8d>] do_unlinkat+0xfc/0x150
Apr 3 05:27:05 PC1 kernel: [<ffffffff802a8ef2>] sys_unlink+0x11/0x13
Apr 3 05:27:05 PC1 kernel: [<ffffffff8020c1aa>]
system_call_after_swapgs+0x8a/0x8f
Apr 3 05:27:05 PC1 kernel: [<00007fc424f821a7>]
Apr 3 05:27:05 PC1 kernel:
Apr 3 05:27:05 PC1 kernel: REISERFS warning (device dm-6): jdm-20005
reiserfs_for_each_xattr: Couldn't chown all xattrs (-22)
These kernels are a running on a SUSE-10.3 base system , compiled from source
with defconfig.default. and gcc 4.2.3 20071030 (prerelease)
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19:25
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Jeff Mahoney wrote:
Jeff Mahoney wrote:
I've just updated the reiserfs xattr patches to fix the problems.
Tomorrow's KOTD will have the update.
It should contain the following in the changelog:
- - patches.suse/reiserfs-kill-xattr-readdir.diff: Eliminated use
of vfsmount-less dentry_open().
- -Jeff
- --
Jeff Mahoney
SUSE Labs
Markus Koßmann wrote:
Or not. I've fixed this problem, but run into others. I'll keep the list
updated. All KOTDs since
2.6.25-rc7-git2-HEAD_20080331133119
-default are showing the following problem in the logs :
dentry_open called with NULL vfsmount
I was wondering how long I'd be able to
get away with that. Question
answered. I'll come up with a fix today. -----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.4-svn0 (GNU/Linux)
Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org
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/T0z7RNZS8gmEVuAbp90Dlk=
=9c99
-----END PGP SIGNATURE-----
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7 Apr
7 Apr
19:29
Am Sonntag, 6. April 2008 schrieb Jeff Mahoney:
Jeff Mahoney wrote:
Thanks, that made "dentry_open called with NULL vfsmount" disappear.
But unfortnunately, there is another problem introduced with 2.6.25-rc7 that
still exists. When I shutdown the system, there is a segmentation fault
during the final umount and the system stops with extra sync but filesystems
still mounted readonly . Nothing in the logs. Syslog seems to be allready
stopped at that time.
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Jeff Mahoney wrote:
I've just updated the reiserfs xattr patches to fix the problems.
Tomorrow's KOTD will have the update.
It should contain the following in the changelog:
- patches.suse/reiserfs-kill-xattr-readdir.diff: Eliminated use
of vfsmount-less dentry_open().
Markus Koßmann wrote:
Or not. I've fixed this problem, but run into others. I'll keep the list
updated. All KOTDs since
2.6.25-rc7-git2-HEAD_20080331133119
-default are showing the following problem in the logs :
dentry_open called with NULL vfsmount
I was wondering how long I'd be able to get away with that. Question
answered. I'll come up with a fix today.
20:13
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Markus Koßmann wrote:
Am Sonntag, 6. April 2008 schrieb Jeff Mahoney:
Can you switch to console 10 and see what the Oops says?
Thanks.
- -Jeff
- --
Jeff Mahoney
SUSE Labs
Jeff Mahoney wrote:
Thanks, that made "dentry_open called with NULL vfsmount" disappear.
But unfortnunately, there is another problem introduced with 2.6.25-rc7 that
still exists. When I shutdown the system, there is a segmentation fault
during the final umount and the system stops with extra sync but filesystems
still mounted readonly . Nothing in the logs. Syslog seems to be allready
stopped at that time. Jeff Mahoney wrote:
I've just updated the reiserfs xattr patches to fix the problems.
Tomorrow's KOTD will have the update.
It should contain the following in the changelog:
- patches.suse/reiserfs-kill-xattr-readdir.diff: Eliminated use
of vfsmount-less dentry_open().
Markus Koßmann wrote:
> All KOTDs since 2.6.25-rc7-git2-HEAD_20080331133119
> -default are showing the following problem in the logs :
> dentry_open called with NULL vfsmount
I was wondering how long I'd be able to get away with that. Question
answered. I'll come up with a fix today.
Or not. I've fixed this
problem, but run into others. I'll keep the list
updated. -----BEGIN PGP SIGNATURE-----
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Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org
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20:56
Am Montag, 7. April 2008 schrieb Jeff Mahoney:
Markus Koßmann wrote:
Sorry, don't have the time to write down the whole message
Kernel Bug at fs/dcache.c 637
Invalid Opcode:0000 [1] SMP
Backtrace begins with :
shrink_dache_for_umount+0x37/0x47
RIP: shrink_dcache_for_umount_subtree 0x146/0x216
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Am Sonntag, 6. April 2008 schrieb Jeff Mahoney:
Can you switch to console 10 and see what the Oops says?
Jeff Mahoney wrote:
Thanks, that made "dentry_open called with NULL vfsmount" disappear.
But unfortnunately, there is another problem introduced with 2.6.25-rc7
that still exists. When I shutdown the system, there is a segmentation
fault during the final umount and the system stops with extra sync but
filesystems still mounted readonly . Nothing in the logs. Syslog seems to
be allready stopped at that time. Jeff Mahoney wrote:
> Markus Koßmann wrote:
>> All KOTDs since 2.6.25-rc7-git2-HEAD_20080331133119
>> -default are showing the following problem in the logs :
>> dentry_open called with NULL vfsmount
>
> I was wondering how long I'd be able to get away with that. Question
> answered. I'll come up with a fix today.
Or not. I've fixed this problem, but run into others. I'll keep the
list updated.
I've just updated the reiserfs xattr patches to fix the problems.
Tomorrow's KOTD will have the update.
It should contain the following in the changelog:
- patches.suse/reiserfs-kill-xattr-readdir.diff: Eliminated use
of vfsmount-less dentry_open().
12 Apr
12 Apr
08:41
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Markus Koßmann wrote:
Am Montag, 7. April 2008 schrieb Jeff Mahoney:
Ok, this means that there's a reference counting problem and a dentry
isn't getting released before umount. I can't reproduce it locally, but
I've been continuing the development of these patches.
I'll update them as soon as I solve the ABBA deadlock I've been
observing under load. What I'm seeing is that one thread is holding the
xattr dir i_mutex and waiting on the journal while another thread is in
the middle of a transaction and waiting on the xattr dir i_mutex. And
then we're stuck.
The solution is probably going to be defining a separate dir_action
callback that is responsible for locking the dir in addition to avoiding
the deadlock. My old version of these patches had a comment saying
"Revisit the lock ordering here." Now I remember why.
- -Jeff
- --
Jeff Mahoney
SUSE Labs
Markus Koßmann wrote:
Sorry, don't have the time to write down the whole message
Kernel Bug at fs/dcache.c 637
Invalid Opcode:0000 [1] SMP
Backtrace begins with :
shrink_dache_for_umount+0x37/0x47
RIP: shrink_dcache_for_umount_subtree 0x146/0x216 Am Sonntag, 6. April 2008 schrieb Jeff Mahoney:
Can you switch to console 10 and see what the
Oops says?
Jeff Mahoney wrote:
> Jeff Mahoney wrote:
>> Markus Koßmann wrote:
>>> All KOTDs since 2.6.25-rc7-git2-HEAD_20080331133119
>>> -default are showing the following problem in the logs :
>>> dentry_open called with NULL vfsmount
>> I was wondering how long I'd be able to get away with that. Question
>> answered. I'll come up with a fix today.
> Or not. I've fixed this problem, but run into others. I'll keep the
> list updated.
I've just updated the reiserfs xattr patches to fix the problems.
Tomorrow's KOTD will have the update.
It should contain the following in the changelog:
- patches.suse/reiserfs-kill-xattr-readdir.diff: Eliminated use
of vfsmount-less dentry_open().
Thanks, that made "dentry_open called with
NULL vfsmount" disappear.
But unfortnunately, there is another problem introduced with 2.6.25-rc7
that still exists. When I shutdown the system, there is a segmentation
fault during the final umount and the system stops with extra sync but
filesystems still mounted readonly . Nothing in the logs. Syslog seems to
be allready stopped at that time. -----BEGIN PGP SIGNATURE-----
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8 Apr
8 Apr
20:30
Am Montag, 7. April 2008 schrieb Jeff Mahoney:
Can you switch to console 10 and see what the Oops says?
I've opened Bugzilla #378095 for that problem and attached a screenshot of
the Kernel BUG message in the bugreport
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4819
days inactive
4828
days old
8 comments
2 participants
participants (2)
-
Jeff Mahoney -
Markus Koßmann