# Re: Fw: Problems with bdev\_write\_page().

- From: Charles Bertsch \<hidden\>
- Date: 2015-06-15 14:19:17 
- List: linux-raid
- Page: https://ratatoskr.run/linux-raid/2015/06/96734
- Thread: https://ratatoskr.run/linux-fsdevel/2015/06/96734/t.md

```text
On 06/12/2015 07:48 AM, Matthew Wilcox wrote:
...
>>
>> Can you propose a fix for Charles, who can trigger this bug and nicely
>> bisected it for us - thanks Charles!!!
>
....
>
> (this patch probably doesn't apply to the current tree; it's done against
> a bit of a mishmash tree in my current working directory.  it's not for
> applynig, but for commentary).
>
Matthhew,

I tested again with v4.1-rc7, bug still present.

I was able to apply the patch (at offsets -10, -1, -8 for fs/block_dev.c, fs/mpage.c, and mm/page_io.c).  That test has been running without error for 14 hours.  The bug would occur with this setup within 10 minutes.

Thanks.

Charles Bertsch
```