We have received the bug report, but it could use more details on
exactly what steps are required to reproduce this problem. You say
it is not easy to reproduce, then later say you can reproduce it on
demand.
It would be helpful if you could provide the specific steps that
cause this problem to occur.
From past experience, if we can't reproduce the problem, the chances
of it getting fixed are not very good.
Does it only occur on dual processor configurations?
David Ferguson
USB Software Team
Apple Computer
At 6:02 PM +0200 6/29/05, Florent Pillet wrote:
A few months back, I reported in bug rdar://4084302 that IOUSBLib
was sometimes hanging on USBInterfaceOpen. This is an issue I have
consistently seen in all versions of 10.2, 10.3 and 10.4 and is
still causing the USB layer of the IOKit to completely hang (all USB
devices become unresponsive). I got it today again with 10.4.1.
Is there any chance that this issue be fixed in a reasonable
timeframe? It's becoming a real problem as we're holding a
deployment of several thousands Macs just because of that. From what
I've read on this list, I'm not alone with this issue, and this
appears to happen with various kinds of USB devices.
I would hate to have to deploy Linux PCs instead of Macs just
because of this issue :-(
If others are seeing the same sporadic issue when opening access to
a USB device from a userland application, PLEASE file a bug too so
that engineering knows that this is a serious issue.
Florent
--
Florent Pillet http://www.florentpillet.com
Freelance software developer/consultant - Palm OS & Mac OS X
Skype callto://florent.pillet
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