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From: "Pavel Dovgalyuk" <dovgaluk@ispras.ru>
To: 'Paolo Bonzini' <pbonzini@redhat.com>,
	'Pavel Dovgalyuk' <Pavel.Dovgaluk@ispras.ru>,
	qemu-devel@nongnu.org
Cc: kwolf@redhat.com, peter.maydell@linaro.org,
	boost.lists@gmail.com, quintela@redhat.com, jasowang@redhat.com,
	mst@redhat.com, zuban32s@gmail.com,
	maria.klimushenkova@ispras.ru, kraxel@redhat.com,
	alex.bennee@linaro.org
Subject: Re: [Qemu-devel] [RFC PATCH 08/26] replay: make safe vmstop at record/replay
Date: Thu, 2 Nov 2017 14:57:12 +0300	[thread overview]
Message-ID: <001601d353d1$b839eab0$28adc010$@ru> (raw)
In-Reply-To: <7f87350f-2a29-ae49-c86a-63bc8c425937@redhat.com>

> From: Paolo Bonzini [mailto:pbonzini@redhat.com]
> On 31/10/2017 12:25, Pavel Dovgalyuk wrote:
> >
> > -    bdrv_drain_all();
> > -    replay_disable_events();
> > -    ret = bdrv_flush_all();
> > +    if (!replay_events_enabled()) {
> > +        bdrv_drain_all();
> > +        ret = bdrv_flush_all();
> > +    }
> >
> >      return ret;
> >  }
> > diff --git a/migration/savevm.c b/migration/savevm.c
> > index 20cebe1..41a13c0 100644
> > --- a/migration/savevm.c
> > +++ b/migration/savevm.c
> > @@ -2143,8 +2143,8 @@ int save_snapshot(const char *name, Error **errp)
> >      AioContext *aio_context;
> >
> >      if (!replay_can_snapshot()) {
> > -        monitor_printf(mon, "Record/replay does not allow making snapshot "
> > -                        "right now. Try once more later.\n");
> > +        error_report("Record/replay does not allow making snapshot "
> > +                     "right now. Try once more later.\n");
> 
> Why this change?

Kind of a mess in changes.
It should be in patch 06 which introduce these lines.
I'll fix it in the next version.

Pavel Dovgalyuk

  reply	other threads:[~2017-11-02 11:57 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-31 11:24 [Qemu-devel] [RFC PATCH 00/26] replay additions Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 01/26] block: implement bdrv_snapshot_goto for blkreplay Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 02/26] blkreplay: create temporary overlay for underlaying devices Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 03/26] replay: disable default snapshot for record/replay Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 04/26] replay: fix processing async events Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 05/26] replay: fixed replay_enable_events Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 06/26] replay: fix save/load vm for non-empty queue Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 07/26] replay: added replay log format description Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 08/26] replay: make safe vmstop at record/replay Pavel Dovgalyuk
2017-11-02 11:28   ` Paolo Bonzini
2017-11-02 11:57     ` Pavel Dovgalyuk [this message]
2017-11-02 12:00       ` Paolo Bonzini
2017-11-02 12:04         ` Pavel Dovgalyuk
2017-11-02 12:21           ` Paolo Bonzini
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 09/26] replay: save prior value of the host clock Pavel Dovgalyuk
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 10/26] icount: fixed saving/restoring of icount warp timers Pavel Dovgalyuk
2017-11-02 11:27   ` Paolo Bonzini
2017-10-31 11:25 ` [Qemu-devel] [RFC PATCH 11/26] target/arm/arm-powertctl: drop BQL assertions Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 12/26] cpus: push BQL lock to qemu_*_wait_io_event Pavel Dovgalyuk
2017-11-02 11:26   ` Paolo Bonzini
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 13/26] cpus: only take BQL for sleeping threads Pavel Dovgalyuk
2017-11-02 11:08   ` Paolo Bonzini
2017-11-02 18:39     ` David Hildenbrand
2017-11-02 20:03       ` Paolo Bonzini
2017-11-13  8:52         ` Pavel Dovgalyuk
2017-11-13 10:14           ` Alex Bennée
2017-11-13 10:58             ` Paolo Bonzini
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 14/26] replay/replay.c: bump REPLAY_VERSION again Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 15/26] replay/replay-internal.c: track holding of replay_lock Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 16/26] replay: make locking visible outside replay code Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 17/26] replay: push replay_mutex_lock up the call tree Pavel Dovgalyuk
2017-11-02 11:56   ` Paolo Bonzini
2017-11-02 12:00   ` Paolo Bonzini
2017-11-03  9:16     ` Pavel Dovgalyuk
2017-11-03  9:47       ` Alex Bennée
2017-11-03 10:17         ` Paolo Bonzini
2017-11-06 13:05           ` Alex Bennée
2017-11-06 13:10             ` Paolo Bonzini
2017-11-06 16:30               ` Alex Bennée
2017-11-06 16:35                 ` Paolo Bonzini
2017-11-03 10:17       ` Paolo Bonzini
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 18/26] cpu-exec: don't overwrite exception_index Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 19/26] cpu-exec: reset exit flag before calling cpu_exec_nocache Pavel Dovgalyuk
2017-11-02 11:17   ` Paolo Bonzini
2017-11-02 11:24     ` Pavel Dovgalyuk
2017-11-02 11:33       ` Paolo Bonzini
2017-11-02 11:46         ` Paolo Bonzini
2017-11-03  8:27           ` Pavel Dovgalyuk
2017-11-06 13:48             ` Paolo Bonzini
2017-11-10  8:20               ` Pavel Dovgalyuk
2017-11-10  8:31                 ` Paolo Bonzini
2017-11-10 12:29                   ` Pavel Dovgalyuk
2017-11-10 13:12                     ` Paolo Bonzini
2017-11-06 14:01             ` Alex Bennée
2017-11-02 12:45         ` Pavel Dovgalyuk
2017-11-02 14:43           ` Paolo Bonzini
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 20/26] replay: don't destroy mutex at exit Pavel Dovgalyuk
2017-10-31 11:26 ` [Qemu-devel] [RFC PATCH 21/26] replay: check return values of fwrite Pavel Dovgalyuk
2017-10-31 11:27 ` [Qemu-devel] [RFC PATCH 22/26] scripts/qemu-gdb: add simple tcg lock status helper Pavel Dovgalyuk
2017-10-31 11:27 ` [Qemu-devel] [RFC PATCH 23/26] util/qemu-thread-*: add qemu_lock, locked and unlock trace events Pavel Dovgalyuk
2017-10-31 11:27 ` [Qemu-devel] [RFC PATCH 24/26] scripts/analyse-locks-simpletrace.py: script to analyse lock times Pavel Dovgalyuk
2017-10-31 11:27 ` [Qemu-devel] [RFC PATCH 25/26] scripts/replay-dump.py: replay log dumper Pavel Dovgalyuk
2017-10-31 11:27 ` [Qemu-devel] [RFC PATCH 26/26] scripts/qemu-gdb/timers.py: new helper to dump timer state Pavel Dovgalyuk
2017-10-31 16:11 ` [Qemu-devel] [RFC PATCH 00/26] replay additions no-reply
2017-10-31 18:31 ` no-reply
  -- strict thread matches above, loose matches on Subject: below --
2017-10-31 11:06 Pavel Dovgalyuk
2017-10-31 11:07 ` [Qemu-devel] [RFC PATCH 08/26] replay: make safe vmstop at record/replay Pavel Dovgalyuk

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