From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Josh Zhao <joshsystem@gmail.com>
Cc: Xen-devel <xen-devel@lists.xen.org>
Subject: Re: Xen watchdog improvements
Date: Mon, 12 Aug 2013 16:20:37 +0100 [thread overview]
Message-ID: <5208FD45.8010502@citrix.com> (raw)
In-Reply-To: <CAOYkbahPmGBGDTkzyUNaGjh+GufXnpsgtBKp-JEFXetTrypKfA@mail.gmail.com>
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On 12/08/13 14:47, Josh Zhao wrote:
> Hi Andrew,
> What's the Watchdog used for in Xen?
>
> Josh
Xen can set up a hardware watchdog on each pcpu, to help ensure that it
doesn't get stuck in loops. It is extra defence against bugs in Xen.
~Andrew
>
>
> 2013/8/12 Andrew Cooper <andrew.cooper3@citrix.com
> <mailto:andrew.cooper3@citrix.com>>
>
> This series offers some improvements to Xen watchdogs.
>
> Patch 1 moves the concept of a watchdog from x86 specific code to
> common.
> Patch 2 tweaks the x86 implementation, given the common
> implementation.
> Patch 3 is a bugfix for certain cases where the watchdog code
> interacts badly with
> console_force_unlock().
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com
> <mailto:andrew.cooper3@citrix.com>>
> CC: Keir Fraser <keir@xen.org <mailto:keir@xen.org>>
> CC: Jan Beulich <JBeulich@suse.com <mailto:JBeulich@suse.com>>
> CC: Tim Deegan <tim@xen.org <mailto:tim@xen.org>>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org <mailto:Xen-devel@lists.xen.org>
> http://lists.xen.org/xen-devel
>
>
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next prev parent reply other threads:[~2013-08-12 15:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-12 13:37 Xen watchdog improvements Andrew Cooper
2013-08-12 13:37 ` [PATCH 1/3] xen/watchdog: Move watchdog from being x86 specific to common code Andrew Cooper
2013-08-12 13:37 ` [PATCH 2/3] x86/watchdog: Tweak implementation given new " Andrew Cooper
2013-08-12 13:49 ` Jan Beulich
2013-08-12 13:54 ` Andrew Cooper
2013-08-12 14:03 ` [Patch v2 " Andrew Cooper
2013-08-12 13:38 ` [PATCH 3/3] watchdog/crash: Always disable watchdog in console_force_unlock() Andrew Cooper
2013-08-12 13:47 ` Xen watchdog improvements Josh Zhao
2013-08-12 15:20 ` Andrew Cooper [this message]
2013-08-12 13:51 ` Jan Beulich
2013-08-12 16:50 ` Keir Fraser
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