| |
|
 |
|
 |
|
|
|
| |
|
|
xen-ia64-devel
Re: [Xen-devel] Re: [Xen-ia64-devel] Weekly benchmark results [ww24]
|
To: |
Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx> |
|
Subject: |
Re: [Xen-devel] Re: [Xen-ia64-devel] Weekly benchmark results [ww24] |
|
From: |
Steven Hand <Steven.Hand@xxxxxxxxxxxx> |
|
Date: |
Tue, 20 Jun 2006 11:06:36 +0100 |
|
Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, "yo.fujita" <yo.fujita@xxxxxxxxxxxxxxxx>, "'You, Yongkang'" <yongkang.you@xxxxxxxxx>, Steven.Hand@xxxxxxxxxxxx, 'Alex Williamson' <alex.williamson@xxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
|
Delivery-date: |
Tue, 20 Jun 2006 03:07:01 -0700 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
Message from Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx> of "Tue, 20 Jun 2006 14:26:04 +0900." <200606200526.k5K5QWlK009993@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
|
List-help: |
<mailto:xen-devel-request@lists.xensource.com?subject=help> |
|
List-id: |
Xen developer discussion <xen-devel.lists.xensource.com> |
|
List-post: |
<mailto:xen-devel@lists.xensource.com> |
|
List-subscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
|
List-unsubscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
>==================
>STATUS
>==================
>I do the heavy load test of create/destroy.
>CREDIT scheduler(cshed_schedule) checks BUG_ON(!vcpu_running) at the end of co
de.
>It makes error.
>The reason is that
>atomic_inc(&v->pausecnt)@vcpu_pause() is called without lock.
>(spin_lock(&schedule_data[cpu].schedule_lock))
>This lock-less "pausecnt" makes vcpu_running state changing
>during the lock of
>spin_lock_irq(&schedule_data[cpu].schedule_lock)@__enter_schduler().
>The code of cshed_schedule exists within this lock.
Thanks for this - we have also reproduced.
The assertation was in fact bogus as you surmised. Have checked in a
fix.
cheers,
S.
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home