From: Jan Kiszka <jan.kiszka@siemens.com>
To: Alexander Graf <agraf@suse.de>
Cc: Bastian Blank <waldi@debian.org>,
Aurelien Jarno <aurelien@aurel32.net>,
qemu-devel Developers <qemu-devel@nongnu.org>
Subject: [Qemu-devel] Re: [PATCH] char: Flush read buffer in mux_chr_can_read
Date: Tue, 11 May 2010 18:29:52 +0200 [thread overview]
Message-ID: <4BE98600.5030905@siemens.com> (raw)
In-Reply-To: <4BE98445.9000203@suse.de>
Alexander Graf wrote:
> Jan Kiszka wrote:
>> Move the buffer flush from mux_chr_read to mux_chr_can_read. While the
>> latter is called periodically, the former will only be invoked when new
>> characters arrive at the back-end. This caused problems to front-end
>> drivers whenever they were unable to read data immediately, e.g.
>> virtio-console attached to stdio.
>>
>
> I don't see this patch applied, but also don't see any issues with
> virtio-console anymore on today's git. Odd.
>
Hmm, I had a clear before-after experience using virtio console with an
x86 Linux guest. I still think my patch is correct and required. Maybe
you can bisect this positive "regression"? Something might paper over
the core issue now.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2010-05-11 16:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 16:56 [Qemu-devel] [PATCH] [RESEND] Make char muxer more robust wrt small FIFOs Alexander Graf
2010-05-04 13:44 ` Anthony Liguori
2010-05-04 14:30 ` Alexander Graf
2010-05-04 14:34 ` Anthony Liguori
2010-05-04 16:01 ` Alexander Graf
2010-05-04 16:25 ` Anthony Liguori
2010-05-04 16:49 ` Jan Kiszka
2010-05-05 7:33 ` [Qemu-devel] " Jan Kiszka
2010-05-05 8:08 ` Jan Kiszka
2010-05-05 12:46 ` Alexander Graf
2010-05-05 15:27 ` [Qemu-devel] [PATCH] char: Flush read buffer in mux_chr_can_read Jan Kiszka
2010-05-11 16:22 ` [Qemu-devel] " Alexander Graf
2010-05-11 16:29 ` Jan Kiszka [this message]
2010-05-11 16:35 ` Alexander Graf
2010-05-12 18:51 ` Jan Kiszka
2010-05-14 16:00 ` Alexander Graf
2010-05-14 16:17 ` Jan Kiszka
2010-05-15 5:31 ` Alexander Graf
2010-05-15 8:36 ` Jan Kiszka
2010-05-15 8:37 ` Alexander Graf
2010-05-15 8:54 ` Jan Kiszka
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