From: "Richard W.M. Jones" <rjones@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kwolf@redhat.com, lersek@redhat.com, qemu-devel@nongnu.org,
stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me
Date: Thu, 16 Jul 2015 20:05:46 +0100 [thread overview]
Message-ID: <20150716190546.GI29283@redhat.com> (raw)
In-Reply-To: <1437040609-9878-1-git-send-email-pbonzini@redhat.com>
Sorry to spoil things, but I'm still seeing this bug, although it is
now a lot less frequent with your patch. I would estimate it happens
more often than 1 in 5 runs with qemu.git, and probably 1 in 200 runs
with qemu.git + the v2 patch series.
It's the exact same hang in both cases.
Is it possible that this patch doesn't completely close any race?
Still, it is an improvement, so there is that.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
next prev parent reply other threads:[~2015-07-16 19:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-16 9:56 [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me Paolo Bonzini
2015-07-16 9:56 ` [Qemu-devel] [PATCH v2 1/3] tests: remove irrelevant assertions from test-aio Paolo Bonzini
2015-07-16 9:56 ` [Qemu-devel] [PATCH v2 2/3] aio-win32: reorganize polling loop Paolo Bonzini
2015-07-16 9:56 ` [Qemu-devel] [PATCH v2 3/3] AioContext: fix broken ctx->dispatching optimization Paolo Bonzini
2015-07-17 2:25 ` Fam Zheng
2015-07-17 2:27 ` Paolo Bonzini
2015-07-17 4:17 ` Paolo Bonzini
2015-07-17 8:39 ` Stefan Hajnoczi
2015-07-16 11:07 ` [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me Kevin Wolf
2015-07-16 12:44 ` Richard W.M. Jones
2015-07-16 19:05 ` Richard W.M. Jones [this message]
2015-07-16 22:06 ` Paolo Bonzini
2015-07-17 0:17 ` Paolo Bonzini
2015-07-17 4:44 ` Paolo Bonzini
2015-07-17 9:30 ` Paolo Bonzini
2015-07-17 12:58 ` Richard W.M. Jones
2015-07-17 13:02 ` Paolo Bonzini
2015-07-17 13:28 ` Marc Zyngier
2015-07-17 13:39 ` Laszlo Ersek
2015-07-17 13:48 ` Marc Zyngier
2015-07-17 13:53 ` Richard W.M. Jones
2015-07-17 14:03 ` Marc Zyngier
2015-07-17 13:57 ` Laszlo Ersek
2015-07-17 14:04 ` Paolo Bonzini
2015-07-17 14:18 ` Marc Zyngier
-- strict thread matches above, loose matches on Subject: below --
2015-07-18 20:21 Paolo Bonzini
2015-07-19 10:08 ` Richard W.M. Jones
2015-07-20 16:17 ` Stefan Hajnoczi
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=20150716190546.GI29283@redhat.com \
--to=rjones@redhat.com \
--cc=kwolf@redhat.com \
--cc=lersek@redhat.com \
--cc=pbonzini@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).