Re: Random file system corruption in 3.17 (not BTRFS related...?)

[David Arendt <admin@prnet.org>]

I didn't notice a corruption on other filesystems with kernel 3.17.0. 
Also I didn't experience any hangs except when trying to mount a 
corrupted btrfs but this was causing a hang within less than 10 seconds. 
It could be that your problem is unrelated and that the corruption you 
are experiencing is due to an unrelated hang followed by a hard 
powerdown. Have you been able to capture any btrfs related kernel panics ?

On 10/14/14 6:54 PM, Robert White wrote:
> Howdy,
>
> So I run several gentoo systems and I upgraded two of them to kernel 
> 3.17.0
>
> One using BTRFS for root.
> One using ext3 for root (via the ext4 driver)
>
> _Both_ systems exhibited strange behavior (long pauses and then hangs 
> requiring hard-power) within several hours. Both then had random 
> filesystem damage.
>
> On the BTRFS system much of my browser settings for firefox were 
> trashed, particularly the cookies and saved conifigurations for 
> add-ons (like which sites had scripts enabled/disabled in no-script) etc.
>
> On the ext3/4 system there were several corruptions including a 
> pipe/special file with a large non-zero size that required I do a 
> "fsck -fyD /dev/sda3" to repair. (one comment from fsck was that the 
> pipe/special file "looked like a directory" or some such)
>
> So I can say that corruption is taking place, but I suspect it is 
> _not_ happening in the BTRFS specific code.
>
> (ASIDE: both systems are older amd64 using built-in radeon display 
> hardware.)
>
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