From: Avi Kivity <avi@redhat.com>
To: Eric B Munson <emunson@mgebm.net>
Cc: mingo@redhat.com, hpa@zytor.com, arnd@arndb.de,
ryanh@linux.vnet.ibm.com, aliguori@us.ibm.com,
mtosatti@redhat.com, jeremy.fitzhardinge@citrix.com,
levinsasha928@gmail.com, Jan Kiszka <jan.kiszka@siemens.com>,
kvm@vger.kernel.org, linux-arch@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/5 V5] Add check for suspended vm in softlockup detector
Date: Wed, 07 Dec 2011 16:38:42 +0200 [thread overview]
Message-ID: <4EDF7A72.5020703@redhat.com> (raw)
In-Reply-To: <1323116344-17911-6-git-send-email-emunson@mgebm.net>
On 12/05/2011 10:19 PM, Eric B Munson wrote:
> A suspended VM can cause spurious soft lockup warnings. To avoid these, the
> watchdog now checks if the kernel knows it was stopped by the host and skips
> the warning if so. When the watchdog is reset successfully, clear the guest
> paused flag.
>
> int watchdog_enabled = 1;
> @@ -280,6 +281,9 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
> __this_cpu_write(softlockup_touch_sync, false);
> sched_clock_tick();
> }
> +
> + /* Clear the guest paused flag on watchdog reset */
> + kvm_check_and_clear_guest_paused(smp_processor_id());
> __touch_watchdog();
> return HRTIMER_RESTART;
> }
Won't build if !CONFIG_KVMCLOCK
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-12-07 14:38 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-05 20:18 [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped by host Eric B Munson
2011-12-05 20:19 ` [PATCH 1/5 V5] Add flag to indicate that a vm was stopped by the host Eric B Munson
2011-12-05 20:19 ` [PATCH 2/5 V5] Add functions to check if the host has stopped the vm Eric B Munson
2011-12-07 14:31 ` Avi Kivity
2011-12-08 15:23 ` Eric B Munson
2011-12-14 12:11 ` Marcelo Tosatti
2011-12-14 14:37 ` Avi Kivity
2011-12-14 17:11 ` Eric B Munson
2011-12-14 17:30 ` Avi Kivity
2011-12-14 17:57 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 3/5 V5] Add ioctl for KVMCLOCK_GUEST_STOPPED Eric B Munson
2011-12-07 14:34 ` Avi Kivity
2011-12-08 15:25 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 4/5 V5] Add generic stubs for kvm stop check functions Eric B Munson
2011-12-07 14:36 ` Avi Kivity
2011-12-08 15:27 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 5/5 V5] Add check for suspended vm in softlockup detector Eric B Munson
2011-12-07 14:38 ` Avi Kivity [this message]
2011-12-07 14:41 ` [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped by host Avi Kivity
2011-12-08 15:19 ` Eric B Munson
2011-12-14 15:08 ` Avi Kivity
2011-12-14 17:58 ` Eric B Munson
2011-12-15 9:48 ` Avi Kivity
2011-12-15 18:53 ` Eric B Munson
2011-12-19 13:01 ` Avi Kivity
2011-12-11 12:40 ` Dor Laor
2011-12-14 12:18 ` Marcelo Tosatti
2011-12-14 12:16 ` Marcelo Tosatti
2011-12-14 14:39 ` Avi Kivity
2011-12-14 14:49 ` Anthony Liguori
2011-12-14 15:01 ` Avi Kivity
2011-12-14 14:54 ` Eric B Munson
2011-12-14 18:21 ` Marcelo Tosatti
2011-12-15 10:21 ` Avi Kivity
2011-12-16 9:31 ` Marcelo Tosatti
2011-12-19 12:59 ` Avi Kivity
2011-12-19 16:11 ` Marcelo Tosatti
2011-12-19 17:50 ` Marcelo Tosatti
2011-12-22 9:59 ` Avi Kivity
2011-12-08 11:34 ` Amit Shah
2011-12-15 11:55 ` Avi Kivity
2011-12-19 12:52 ` Amit Shah
2011-12-19 12:59 ` Avi Kivity
2011-12-19 17:59 ` Amit Shah
2011-12-22 9:18 ` Dor Laor
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