From: Stefan Hajnoczi <stefanha@gmail.com>
To: Jes.Sorensen@redhat.com
Cc: agl@us.ibm.com, qemu-devel@nongnu.org, mdroth@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [PATCH 1/2] Add virtagent file system freeze/thaw
Date: Wed, 2 Feb 2011 07:57:30 +0000 [thread overview]
Message-ID: <AANLkTi=+E6zJ_kegGPQVFA-cKq2Ew6fyrFdUEG7zTxFq@mail.gmail.com> (raw)
In-Reply-To: <1296557928-30019-2-git-send-email-Jes.Sorensen@redhat.com>
On Tue, Feb 1, 2011 at 10:58 AM, <Jes.Sorensen@redhat.com> wrote:
> From: Jes Sorensen <Jes.Sorensen@redhat.com>
>
> Implement freeze/thaw support in the guest, allowing the host to
> request the guest freezes all it's file systems before a live snapshot
> is performed.
> - fsfreeze(): Walk the list of mounted local real file systems,
> and freeze them.
Does this add a requirement that guest agent code issues no disk I/O
in its main loop (e.g. logging)? Otherwise we might deadlock
ourselves waiting for I/O which is never issued.
Stefan
next prev parent reply other threads:[~2011-02-02 14:54 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-01 10:58 [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support Jes.Sorensen
2011-02-01 10:58 ` [Qemu-devel] [PATCH 1/2] Add virtagent file system freeze/thaw Jes.Sorensen
2011-02-01 14:12 ` Stefan Hajnoczi
2011-02-01 14:26 ` Jes Sorensen
2011-02-01 14:34 ` Stefan Hajnoczi
2011-02-01 14:36 ` Jes Sorensen
2011-02-01 14:41 ` Stefan Hajnoczi
2011-02-01 17:22 ` Michael Roth
2011-02-01 14:48 ` [Qemu-devel] " Adam Litke
2011-02-01 15:02 ` Jes Sorensen
2011-02-01 16:50 ` Michael Roth
2011-02-02 8:38 ` Jes Sorensen
2011-02-02 7:57 ` Stefan Hajnoczi [this message]
2011-02-02 8:48 ` [Qemu-devel] " Jes Sorensen
2011-02-03 17:41 ` Michael Roth
2011-02-04 6:13 ` Stefan Hajnoczi
2011-02-04 16:27 ` Michael Roth
2011-02-04 16:52 ` Stefan Hajnoczi
2011-02-04 11:03 ` Jes Sorensen
2011-02-04 16:51 ` Michael Roth
2011-02-01 10:58 ` [Qemu-devel] [PATCH 2/2] Add monitor commands for fsfreeze support Jes.Sorensen
2011-02-01 11:25 ` [Qemu-devel] [PATCH 0/2] virtagent - " Vasiliy G Tolstov
2011-02-01 13:02 ` Jes Sorensen
2011-02-01 16:04 ` Richard W.M. Jones
2011-02-01 20:04 ` Vasiliy G Tolstov
2011-02-01 20:17 ` Richard W.M. Jones
2011-02-01 14:16 ` Stefan Hajnoczi
2011-02-01 14:28 ` Jes Sorensen
2011-02-02 8:42 [Qemu-devel] [PATCH v2 " Jes.Sorensen
2011-02-02 8:42 ` [Qemu-devel] [PATCH 1/2] Add virtagent file system freeze/thaw Jes.Sorensen
2011-02-04 10:57 [Qemu-devel] [PATCH v3 0/2] virtagent - fsfreeze support Jes.Sorensen
2011-02-04 10:57 ` [Qemu-devel] [PATCH 1/2] Add virtagent file system freeze/thaw Jes.Sorensen
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