From: Amit Shah <amit.shah@redhat.com>
To: Eric B Munson <emunson@mgebm.net>
Cc: avi@redhat.com, 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 0/5 V5] Avoid soft lockup message when KVM is stopped by host
Date: Thu, 8 Dec 2011 17:04:22 +0530 [thread overview]
Message-ID: <20111208113422.GA27919@amit-x200.redhat.com> (raw)
In-Reply-To: <1323116344-17911-1-git-send-email-emunson@mgebm.net>
On (Mon) 05 Dec 2011 [15:18:59], Eric B Munson wrote:
> When a guest kernel is stopped by the host hypervisor it can look like a soft
> lockup to the guest kernel. This false warning can mask later soft lockup
> warnings which may be real. This patch series adds a method for a host
> hypervisor to communicate to a guest kernel that it is being stopped. The
> final patch in the series has the watchdog check this flag when it goes to
> issue a soft lockup warning and skip the warning if the guest knows it was
> stopped.
Guest S4 would need similar treatment, and I think the code in the two
approaches can be shared. Just something to consider.
Amit
next prev parent reply other threads:[~2011-12-08 11:34 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
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 [this message]
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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