From: Alex Williamson <alex.williamson@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>,
Maik Broemme <mbroemme@parallels.com>
Subject: Re: [Qemu-devel] VFIO-VGA Issue
Date: Sun, 19 May 2013 21:10:22 -0600 [thread overview]
Message-ID: <1369019422.5520.269.camel@ul30vt.home> (raw)
In-Reply-To: <51960528.8010903@redhat.com>
On Fri, 2013-05-17 at 12:23 +0200, Paolo Bonzini wrote:
> Il 16/05/2013 22:46, Maik Broemme ha scritto:
> >
> > Regarding 2) it results in 100 messages like the following on the console
> > which runs qemu:
> >
> > qemu-system-x86_64: vfio_vga_read(,0x3c3, 1) failed: Interrupted system call
> > qemu-system-x86_64: vfio_vga_read(,0x3c3, 1) failed: Interrupted system call
> > qemu-system-x86_64: vfio_vga_read(,0x3c3, 1) failed: Interrupted system call
>
> This is because VFIO is not looping around pread errors (or short
> reads). The masking of signals is slightly different between TCG and
> KVM, and VFIO code runs with signals unmasked when KVM is disabled.
I didn't know that, I'll add some retries. Thanks,
Alex
next prev parent reply other threads:[~2013-05-20 3:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-16 20:46 [Qemu-devel] VFIO-VGA Issue Maik Broemme
2013-05-17 10:23 ` Paolo Bonzini
2013-05-20 3:10 ` Alex Williamson [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-04-09 12:22 deniv
2013-04-09 17:18 ` Alex Williamson
2013-04-09 22:17 ` Alex Williamson
2013-04-10 9:01 ` Gleb Natapov
2013-04-10 15:20 ` Alex Williamson
2013-04-10 15:22 ` Gleb Natapov
2013-04-10 17:36 ` Paolo Bonzini
2013-04-09 22:33 ` deniv
2013-04-09 22:53 ` Alex Williamson
2013-04-10 0:02 ` deniv
2013-04-10 15:37 ` Alex Williamson
2013-04-10 17:11 ` deniv
2013-04-10 18:30 ` Alex Williamson
2013-04-10 20:32 ` deniv
2013-04-10 20:42 ` Alex Williamson
2013-04-11 17:59 ` deniv
2013-04-15 18:48 ` Alex Williamson
2013-04-25 18:15 ` deniv
[not found] ` <517915C5.3020309@lavabit.com>
[not found] ` <1366915789.2918.794.camel@bling.home>
2013-04-26 12:02 ` deniv
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