[elrepo] RAID 0 bug

[Akemi Yagi]

On Thu, Oct 29, 2015 at 2:42 PM, Peter Steele <pwsteele at gmail.com> wrote:
> We hit this exception this week while running
> kernel-ml-4.0.5-1.el7.elrepo.x86_64:
>
> Oct 28 16:32:56 localhost kernel: WARNING: CPU: 21 PID: 619 at
> mm/backing-dev.c:372 bdi_unregister+0x36/0x40()

> This is a RAID 0 issue and appears to be identical to the bug described
> here: https://bugzilla.redhat.com/show_bug.cgi?id=1226621.
>
> The fix mentioned in this ticket unfortunately is for Fedora core
> (kernel-4.0.5-200.fc21) and is not readily usable with CentOS (at least not
> without dealing with lots of dependency issues). Is there a 4.0.x kernel
> from El Repo that has this fix?

According to the info in the referenced bugzilla entry, the issue was
fixed in kernel 4.1-rc7. So, you'd want to update kernel-ml to the
current version which is 4.2.5. That should have the patch.

Akemi