WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-bugs

[Xen-bugs] [Bug 758] magic sysrq operation "p" does not work

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 758] magic sysrq operation "p" does not work
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Thu, 02 Nov 2006 01:15:03 -0800
Delivery-date: Thu, 02 Nov 2006 13:41:49 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <bug-758-3@xxxxxxxxxxxxxxxxxxxxxxxxxxx/bugzilla/>
List-help: <mailto:xen-bugs-request@lists.xensource.com?subject=help>
List-id: Xen Bugzilla <xen-bugs.lists.xensource.com>
List-post: <mailto:xen-bugs@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-bugs>, <mailto:xen-bugs-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-bugs>, <mailto:xen-bugs-request@lists.xensource.com?subject=unsubscribe>
Reply-to: bugs@xxxxxxxxxxxxxxxxxx
Sender: xen-bugs-bounces@xxxxxxxxxxxxxxxxxxx
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=758





------- Comment #2 from ian.campbell@xxxxxxxxxxxxx  2006-11-02 01:15 -------
The reason that no registers are passed to handle_sysrq() is that xm sysrq is
implemented as a xenstore watch and hence occurs in a kernel thread rather than
an interrupt. Therefore there is no useful register state which we could
include.

The observed behaviour is consistant with other keyboard drivers which have
similar non-interrupt based implementations (e.g. the pSeries virtual console
driver).

If you trigger sysrq with Ctrl-O on the xen console instead then things work as
expected.


-- 
Configure bugmail: 
http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

_______________________________________________
Xen-bugs mailing list
Xen-bugs@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-bugs

<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-bugs] [Bug 758] magic sysrq operation "p" does not work, bugzilla-daemon <=