From: Paolo Bonzini <pbonzini@redhat.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>,
Fam Zheng <famz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] "iothread: release iothread around aio_poll" causes random hangs at startup
Date: Thu, 16 Jul 2015 13:20:42 +0200 [thread overview]
Message-ID: <55A7938A.8000101@redhat.com> (raw)
In-Reply-To: <55A78F87.9030805@de.ibm.com>
On 16/07/2015 13:03, Christian Borntraeger wrote:
> For what its worth, I can no longer reproduce the issue on
> current master + cherry-pick of a0710f7995f (iothread: release iothread around aio_poll)
>
> bisect tells me that
>
> commit 53ec73e264f481b79b52efcadc9ceb8f8996975c
> Author: Fam Zheng <famz@redhat.com>
> AuthorDate: Fri May 29 18:53:14 2015 +0800
> Commit: Stefan Hajnoczi <stefanha@redhat.com>
> CommitDate: Tue Jul 7 14:27:14 2015 +0100
>
> block: Use bdrv_drain to replace uncessary bdrv_drain_all
>
> made the problem will blk-null go away. I still dont understand why.
It could be related to the AioContext problem that I'm fixing these
days, too. Good news, we'll requeue the patch for 2.5.
Paolo
next prev parent reply other threads:[~2015-07-16 11:20 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-02 14:36 [Qemu-devel] "iothread: release iothread around aio_poll" causes random hangs at startup Christian Borntraeger
2015-06-02 14:51 ` Paolo Bonzini
2015-06-03 9:17 ` Stefan Hajnoczi
2015-06-09 2:28 ` Fam Zheng
2015-06-09 9:01 ` Christian Borntraeger
2015-06-10 2:12 ` Fam Zheng
2015-06-10 9:18 ` Christian Borntraeger
2015-06-10 9:34 ` Fam Zheng
2015-06-10 10:31 ` Christian Borntraeger
2015-07-16 11:03 ` Christian Borntraeger
2015-07-16 11:20 ` Paolo Bonzini [this message]
2015-07-16 11:24 ` Christian Borntraeger
2015-07-16 11:37 ` Paolo Bonzini
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=55A7938A.8000101@redhat.com \
--to=pbonzini@redhat.com \
--cc=borntraeger@de.ibm.com \
--cc=famz@redhat.com \
--cc=kwolf@redhat.com \
--cc=qemu-devel@nongnu.org \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).