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Re: [Qemu-devel] [PATCH] usb: selective endpoint initialization
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH] usb: selective endpoint initialization |
Date: |
Tue, 03 Jul 2012 13:55:37 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.5) Gecko/20120601 Thunderbird/10.0.5 |
On 07/03/12 13:39, Jan Kiszka wrote:
> On 2012-07-03 11:17, Gerd Hoffmann wrote:
>> Hi,
>>
>>> BTW, there are still plenty of "husb: out of buffers for iso stream"
>>> messages. Can we do anything about it, or does the the guest selects too
>>> few buffers here (for a virtualized setup)?
>>
>> Try increase isobufs (usb-host property, default is 4).
>
> I gave up at isobufs=10000 - it apparently has no influence on this issue.
>
> Rather, it looks like it is triggered when some sound effect played by
> Windows ends (e.g. the feedback on volume changes).
Makes sense. /me should probably turn those messages into
usb_host_iso_* tracepoints so usb-host is quiet by default.
cheers,
Gerd
Re: [Qemu-devel] [PATCH] usb: selective endpoint initialization, Erik Rull, 2012/07/05