From: Avi Kivity <avi@redhat.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Sasha Levin <levinsasha928@gmail.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
kvm@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH 5/5] ioeventfd: Introduce KVM_IOEVENTFD_FLAG_SOCKET
Date: Thu, 14 Jul 2011 16:23:07 +0300 [thread overview]
Message-ID: <4E1EEDBB.10206@redhat.com> (raw)
In-Reply-To: <1310649431.9498.28.camel@jaguar>
On 07/14/2011 04:17 PM, Pekka Enberg wrote:
> >
> > I still don't follow. The guest oopses? dmesg | less. An issue with
> > tools/kvm? gdb -p `pgrep kvm`.
>
> When I was debugging tools/kvm virtio code, I used to 'instrument' the
> guest kernel with printk() calls which helped a lot.
>
Sure, but do you really need it spewing out the serial port all the time?
> Also, a bug in tools/kvm can manifest in many interesting ways in the
> guest kernel during boot, for example. You can't do dmesg then and gdb
> won't save you. I think you've lived too long in the table KVM and Qemu
> land to remember how important reliable printk() is for development.
I guess. Also I've switched to trace_printk() since it's much nicer
(and intergrates with other ftrace features).
And again, I'm not against tools/kvm optimizing serial. I just want
better justification for socket-mmio.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-07-14 13:23 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-06 4:37 [PATCH 1/5] ioeventfd: Remove natural sized length limitation Sasha Levin
2011-07-06 4:37 ` [PATCH 2/5] ioeventfd: Add helper functions for reading and writing Sasha Levin
2011-07-06 4:37 ` [PATCH 3/5] ioeventfd: Introduce KVM_IOEVENTFD_FLAG_READ Sasha Levin
2011-07-06 4:37 ` [PATCH 4/5] ioeventfd: Introduce KVM_IOEVENTFD_FLAG_NOWRITE Sasha Levin
2011-07-06 4:37 ` [PATCH 5/5] ioeventfd: Introduce KVM_IOEVENTFD_FLAG_SOCKET Sasha Levin
2011-07-06 11:42 ` Michael S. Tsirkin
2011-07-06 15:01 ` Sasha Levin
2011-07-06 17:58 ` Michael S. Tsirkin
2011-07-10 5:34 ` Sasha Levin
2011-07-10 8:05 ` Michael S. Tsirkin
2011-07-12 11:23 ` Sasha Levin
2011-07-12 11:26 ` Avi Kivity
2011-07-13 6:37 ` Pekka Enberg
2011-07-13 6:45 ` Pekka Enberg
2011-07-13 7:07 ` Avi Kivity
2011-07-13 8:02 ` Pekka Enberg
2011-07-13 12:57 ` Avi Kivity
2011-07-13 13:00 ` Pekka Enberg
2011-07-13 13:32 ` Avi Kivity
2011-07-14 7:26 ` Pekka Enberg
2011-07-14 8:07 ` Sasha Levin
2011-07-14 8:09 ` Avi Kivity
2011-07-14 8:14 ` Pekka Enberg
2011-07-14 8:28 ` Avi Kivity
2011-07-14 8:59 ` Pekka Enberg
2011-07-14 9:48 ` Avi Kivity
[not found] ` <CAOJsxLHSeRuTOoiJssyrELRx-eXok3WinLr_+_G4dB+yHNBKdg@mail.gmai! l.com>
2011-07-14 10:30 ` Pekka Enberg
2011-07-14 11:54 ` Avi Kivity
2011-07-14 12:32 ` Sasha Levin
2011-07-14 12:46 ` Avi Kivity
2011-07-14 13:00 ` Sasha Levin
2011-07-14 13:05 ` Avi Kivity
2011-07-14 13:17 ` Pekka Enberg
2011-07-14 13:23 ` Avi Kivity [this message]
2011-07-20 2:52 ` Anthony Liguori
2011-07-20 6:16 ` Sasha Levin
2011-07-20 9:42 ` Pekka Enberg
2011-07-14 12:37 ` Pekka Enberg
2011-07-14 12:48 ` Avi Kivity
2011-07-14 12:52 ` Pekka Enberg
2011-07-14 12:54 ` Avi Kivity
2011-07-14 8:19 ` Gleb Natapov
2011-07-14 8:25 ` Michael S. Tsirkin
2011-07-14 8:29 ` Avi Kivity
2011-07-20 2:49 ` Anthony Liguori
2011-07-20 9:44 ` Pekka Enberg
2011-07-20 21:10 ` Anthony Liguori
2011-07-25 12:10 ` Sasha Levin
2011-07-25 12:16 ` Avi Kivity
2011-07-25 12:26 ` Sasha Levin
2011-07-25 13:04 ` Avi Kivity
2011-07-13 7:51 ` Pekka Enberg
2011-07-13 10:04 ` Pekka Enberg
2011-07-13 10:26 ` Sasha Levin
2011-07-13 10:56 ` Pekka Enberg
2011-07-13 11:14 ` Pekka Enberg
2011-07-06 12:39 ` Avi Kivity
2011-07-06 12:58 ` Sasha Levin
2011-07-06 13:04 ` Avi Kivity
2011-07-06 13:00 ` Avi Kivity
2011-07-20 2:42 ` Anthony Liguori
2011-07-20 8:19 ` Avi Kivity
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=4E1EEDBB.10206@redhat.com \
--to=avi@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=levinsasha928@gmail.com \
--cc=mingo@elte.hu \
--cc=mst@redhat.com \
--cc=mtosatti@redhat.com \
--cc=penberg@kernel.org \
/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.