From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Rusty Russell <rusty@rustcorp.com.au>,
qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed
Date: Wed, 12 Dec 2012 15:01:55 +0100 [thread overview]
Message-ID: <50C88E53.4080200@redhat.com> (raw)
In-Reply-To: <20121212135050.GC16270@stefanha-thinkpad.redhat.com>
Il 12/12/2012 14:50, Stefan Hajnoczi ha scritto:
> VirtIOBlock->rq can trigger the assertion.
>
> IIUC hw/virtio-blk.c may handle I/O errors by keeping the request
> pending and on a list (->rq). This allows the user to restart them
> after, for example, adding more space to the host file system containing
> the disk image file.
>
> We keep a list of failed requests and we migrate this list. So I think
> inuse != 0 when migrating with pending failed I/O requests.
Same for virtio-scsi. Each request in that case is sent as part of the
SCSIDevice that it refers to, via callbacks in SCSIBusInfo.
Paolo
next prev parent reply other threads:[~2012-12-12 14:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-12 10:51 [Qemu-devel] [PATCHv2] virtio: verify that all outstanding buffers are flushed Michael S. Tsirkin
2012-12-12 13:50 ` Stefan Hajnoczi
2012-12-12 14:01 ` Paolo Bonzini [this message]
2012-12-12 14:30 ` Michael S. Tsirkin
2012-12-12 14:36 ` Paolo Bonzini
2012-12-12 14:47 ` Michael S. Tsirkin
2012-12-12 15:01 ` Paolo Bonzini
2012-12-12 15:25 ` Michael S. Tsirkin
2012-12-12 15:52 ` Paolo Bonzini
2012-12-12 16:37 ` Michael S. Tsirkin
2012-12-12 16:51 ` Paolo Bonzini
2012-12-12 17:14 ` Michael S. Tsirkin
2012-12-12 17:39 ` Paolo Bonzini
2012-12-12 19:23 ` Michael S. Tsirkin
2012-12-12 21:00 ` Paolo Bonzini
2012-12-12 21:19 ` Michael S. Tsirkin
2012-12-12 21:33 ` Anthony Liguori
2012-12-12 21:51 ` Michael S. Tsirkin
2012-12-14 1:06 ` Rusty Russell
2012-12-14 7:51 ` Paolo Bonzini
2012-12-16 20:36 ` Anthony Liguori
2012-12-13 7:39 ` Paolo Bonzini
2012-12-13 10:48 ` Kevin Wolf
2012-12-16 16:14 ` Michael S. Tsirkin
2012-12-12 14:26 ` Michael S. Tsirkin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50C88E53.4080200@redhat.com \
--to=pbonzini@redhat.com \
--cc=aliguori@us.ibm.com \
--cc=avi@redhat.com \
--cc=mst@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rusty@rustcorp.com.au \
--cc=stefanha@gmail.com \
--cc=stefanha@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.