Slab corruption with ext3-handle-cache.patch

Slab corruption with ext3-handle-cache.patch

[Martin Schlemmer]

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Hi

I tried this patch a few days again, but not in the mm patch set.  So
when I got problems with slab corruption, I figured it was maybe a
patch I missed, and dropped it.

Now with 2.5.66-bk10+, it is merged, and I get it again.

----------------------------------------------------------
Slab corruption: start=cfaeecc4, expend=cfaeee77, problemat=cfaeed28
Last user: [<c01890de>](ext3_destroy_inode+0x1b/0x1f)
Data:
****************************************************************************************************3C 26 99 DF *******************************************************************************************************************************************************************************************************************************************************************************************************************************************A5 
Next: 71 F0 2C .DE 90 18 C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 
slab error in check_poison_obj(): cache `ext3_inode_cache': object was
modified after freeing
Call Trace:
 [<c0137894>] check_poison_obj+0x14f/0x18f
 [<c0138c8b>] kmem_cache_alloc+0x11c/0x141
 [<c01890aa>] ext3_alloc_inode+0x18/0x31
 [<c01890aa>] ext3_alloc_inode+0x18/0x31
 [<c0162c0c>] alloc_inode+0x1c/0x13d
 [<c0163510>] new_inode+0x13/0x7d
 [<c017fcf2>] ext3_new_inode+0x41/0x7c7
 [<c0138c8b>] kmem_cache_alloc+0x11c/0x141
 [<c018de05>] start_this_handle+0x94/0x1b9
 [<c018df46>] new_handle+0x1c/0x50
 [<c018e025>] journal_start+0xab/0xd2
 [<c0187fb4>] ext3_symlink+0xd6/0x2bd
 [<c015a4c7>] vfs_symlink+0x5c/0xa3
 [<c015a5f0>] sys_symlink+0xe2/0xf2
 [<c010a8fd>] sysenter_past_esp+0x52/0x71

-----------------------------------------------------------

If you need more info, just ask.


Regards,

-- 

Martin Schlemmer




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Re: Slab corruption with ext3-handle-cache.patch

[Andrew Morton]

Martin Schlemmer <azarah@gentoo.org> wrote:
>
> Hi
> 
> I tried this patch a few days again, but not in the mm patch set.  So
> when I got problems with slab corruption, I figured it was maybe a
> patch I missed, and dropped it.
> 
> Now with 2.5.66-bk10+, it is merged, and I get it again.
> 
> ----------------------------------------------------------
> Slab corruption: start=cfaeecc4, expend=cfaeee77, problemat=cfaeed28
> Last user: [<c01890de>](ext3_destroy_inode+0x1b/0x1f)
> Data:
> ****************************************************************************************************3C 26 99 DF *******************************************************************************************************************************************************************************************************************************************************************************************************************************************A5 

Do you have CONFIG_EXT3_FS_POSIX_ACL enabled?

Re: Slab corruption with ext3-handle-cache.patch

[Martin Schlemmer]

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On Sun, 2003-04-06 at 00:38, Andrew Morton wrote:
> Martin Schlemmer <azarah@gentoo.org> wrote:
> >
> > Hi
> > 
> > I tried this patch a few days again, but not in the mm patch set.  So
> > when I got problems with slab corruption, I figured it was maybe a
> > patch I missed, and dropped it.
> > 
> > Now with 2.5.66-bk10+, it is merged, and I get it again.
> > 
> > ----------------------------------------------------------
> > Slab corruption: start=cfaeecc4, expend=cfaeee77, problemat=cfaeed28
> > Last user: [<c01890de>](ext3_destroy_inode+0x1b/0x1f)
> > Data:
> > ****************************************************************************************************3C 26 99 DF *******************************************************************************************************************************************************************************************************************************************************************************************************************************************A5 
> 
> Do you have CONFIG_EXT3_FS_POSIX_ACL enabled?

Nope.

-------------------
 # grep CONFIG_EXT3_FS_POSIX_ACL .config
# CONFIG_EXT3_FS_POSIX_ACL is not set
 # 
-------------------


-- 

Martin Schlemmer




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Re: Slab corruption with ext3-handle-cache.patch

[Andrew Morton]

Martin Schlemmer <azarah@gentoo.org> wrote:
>
> > Do you have CONFIG_EXT3_FS_POSIX_ACL enabled?
> 
> Nope.

So we're leaving an inode on the orphan list.  I wonder why that started
happening.  Thanks.

Re: Slab corruption with ext3-handle-cache.patch

[Martin Schlemmer]

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On Sun, 2003-04-06 at 01:10, Andrew Morton wrote:

> 
> So we're leaving an inode on the orphan list.  I wonder why that started
> happening.  Thanks.

Well, HTREE/dir_index is used on that partition.  I did mail about a
weird problem some time ago where some files are deleted, but don't
get removed (or something to that regards).  The thread was:

  Corruption problem with ext3 and htree

Sorry, cannot get onto http://www.lkml.org/ right now.


Regards,

-- 

Martin Schlemmer




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Re: Slab corruption with ext3-handle-cache.patch

[Martin Schlemmer]

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On Sun, 2003-04-06 at 01:18, Martin Schlemmer wrote:
> On Sun, 2003-04-06 at 01:10, Andrew Morton wrote:
> 
> > 
> > So we're leaving an inode on the orphan list.  I wonder why that started
> > happening.  Thanks.
> 
> Well, HTREE/dir_index is used on that partition.  I did mail about a
> weird problem some time ago where some files are deleted, but don't
> get removed (or something to that regards).  The thread was:
> 
>   Corruption problem with ext3 and htree
> 
> Sorry, cannot get onto http://www.lkml.org/ right now.
> 

Err, what I tried to say here, was that I do not know if it could
be related ...


Regards,

-- 

Martin Schlemmer




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Re: Slab corruption with ext3-handle-cache.patch

[Martin Schlemmer]

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On Sun, 2003-04-06 at 01:10, Andrew Morton wrote:
> Martin Schlemmer <azarah@gentoo.org> wrote:
> >
> > > Do you have CONFIG_EXT3_FS_POSIX_ACL enabled?
> > 
> > Nope.
> 
> So we're leaving an inode on the orphan list.  I wonder why that started
> happening.  Thanks.

I moved all my data off that partition, removed it, and recreated it
without HTREE/dir_index, and moved everything back.  All issues are
resolved, as well as the weird corruption I had.

It seems thus that its only related to HTREE ...


Regards,

-- 

Martin Schlemmer


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