Hello,

On Thu, Sep 08, 2016 at 10:27:37PM +0300, Mike Krinkin wrote:

Hi,

i tried recent linux-next on my laptop, and after boot system is
almost unusable because most of apps just crash with segfaults and
in dmesg output there are a lot of errors like this:

...

git bisect points at commit 7b20309428598df00ffe ("libata: Add support for SCT
Write Same". I temporary fixed problem with the following change:

Shaun, any ideas?  If this isn't an easy fix, I'm gonna disable
write_same for all devices for now.

Thanks.

-- 
tejun