Re: ext4 metadata corruption bug?

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Quoting Theodore Ts'o (tytso@xxxxxxx):

> Are you folks still seeing ext4_mb_generate_buddy or
> ext4_mb_release_inode_pa EXT4-fs errors?
> 
> I think I may have found a fix for this problem.  Or at least, I've
> found one of the causes.  If we get a memory allocation failure from
> ext4_mb_new_inode_pa(), it can cause these errors.

Good to hear a probable cause was found. Unfortunately for this bug's
progress, i've switched to a newer kernel altogether since the 3.13
tree in Ubuntu has had a lot of other problems besides this
EXT4 ext_mb_generate_buddy issue.

With 3.15.0 i have not experienced any ext4 issues at all.

If you want me to, i would be willing to boot that VM in 3.13 with this
patch, but as said, it can take ages before the bug was triggered...

Thanks for your hard work.

-Sndr.
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