From: Paolo Bonzini <pbonzini@redhat.com>
To: Maik Broemme <mbroemme@parallels.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] VFIO-VGA Issue
Date: Fri, 17 May 2013 12:23:36 +0200 [thread overview]
Message-ID: <51960528.8010903@redhat.com> (raw)
In-Reply-To: <20130516204619.GA1623@parallels.com>
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.
Paolo
next prev parent reply other threads:[~2013-05-17 10:23 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 [this message]
2013-05-20 3:10 ` Alex Williamson
-- 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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