Re: Fw: Problems with bdev_write_page().

On 06/12/2015 07:48 AM, Matthew Wilcox wrote:
...

quoted

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