lkml.org 
[lkml]   [2018]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/2] xen: fix two issues in Xen pv qspinlock handling
From
Date
On Mon, 2018-10-01 at 09:16 +0200, Juergen Gross wrote:
> The Xen specific queue spinlock wait function has two issues which
> could result in a hanging system.
>
> They have a similar root cause of clearing a pending wakeup of a
> waiting vcpu and later going to sleep waiting for the just cleared
> wakeup event, which of course won't ever happen.
>
> Juergen Gross (2):
> xen: fix race in xen_qlock_wait()
> xen: make xen_qlock_wait() nestable
>
> arch/x86/xen/spinlock.c | 33 ++++++++++++---------------------
> 1 file changed, 12 insertions(+), 21 deletions(-)
>
> Cc: Waiman.Long@hp.com
> Cc: peterz@infradead.org

LGTM. Both these should be Cc:stable@vger.kernel.org, yes?

Thanks.
[unhandled content-type:application/x-pkcs7-signature]
\
 
 \ /
  Last update: 2018-10-09 16:41    [W:0.085 / U:1.656 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site