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From: Paolo Bonzini <pbonzini@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v3 0/4] Fix -icount with iothread
Date: Tue, 12 Apr 2011 15:26:39 +0200	[thread overview]
Message-ID: <4DA4530F.2070905@redhat.com> (raw)
In-Reply-To: <4DA41ACB.8090403@siemens.com>

On 04/12/2011 11:26 AM, Jan Kiszka wrote:
> On 2011-04-12 10:44, Paolo Bonzini wrote:
>> This series finally fixes -icount with iothread and avoids deadlocks
>> due to the vm_clock not making progress when the VM is stopped.
>> The crux of the fix is in patch 1, while patch 2 implements the
>> "clock warping" that fixes deadlocks in v2.  Clock warping uses
>> the nanosecond resolution rt_clock timers introduced by my previous
>> series.
>>
>> With this in place, patch 3 can revert the previous attempt(s).
>> Finally, patch 4 makes the icount code clearer by finishing the
>> bugfix/reorganization of qemu_next_deadline vs. qemu_next_alarm_deadline.
>>
>> v1->v2:
>>          reordered patches, renamed qemu_next_deadline
>>
>> v2->v3:
>>          introduced warp timer
>>
>> Paolo Bonzini (4):
>>    really fix -icount in the iothread case
>>    enable vm_clock to "warp" in the iothread+icount case
>>    Revert wrong fixes for -icount in the iothread case
>>    qemu_next_deadline should not consider host-time timers
>>
>>   cpus.c        |   13 ++++-
>>   qemu-common.h |    1 +
>>   qemu-timer.c  |  145 ++++++++++++++++++++++++++++++++++++++++++---------------
>>   qemu-timer.h  |    3 +-
>>   4 files changed, 121 insertions(+), 41 deletions(-)
>>
>
> On first glance, I've spotted a view coding style issues. Try checkpatch
> (maybe excluding patch 3).

Will repost, testing is welcome in the meanwhile!

Paolo

  reply	other threads:[~2011-04-12 13:26 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-12  8:44 [Qemu-devel] [PATCH v3 0/4] Fix -icount with iothread Paolo Bonzini
2011-04-12  8:44 ` [Qemu-devel] [PATCH v3 1/4] really fix -icount in the iothread case Paolo Bonzini
2011-04-12  8:44 ` [Qemu-devel] [PATCH v3 2/4] enable vm_clock to "warp" in the iothread+icount case Paolo Bonzini
2011-04-12  8:44 ` [Qemu-devel] [PATCH v3 3/4] Revert wrong fixes for -icount in the iothread case Paolo Bonzini
2011-04-12  8:44 ` [Qemu-devel] [PATCH v3 4/4] qemu_next_deadline should not consider host-time timers Paolo Bonzini
2011-04-12  9:26 ` [Qemu-devel] [PATCH v3 0/4] Fix -icount with iothread Jan Kiszka
2011-04-12 13:26   ` Paolo Bonzini [this message]
2011-04-12 21:50     ` Edgar E. Iglesias
2011-04-13  5:03       ` Paolo Bonzini

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