On Mon, 29 Sep 2008 02:46:15 +0200, Bruce M Simpson <[EMAIL PROTECTED]>
wrote:
Hi,
I've noticed some general instability with plugging in or removing USB
devices with FreeBSD 7.x, even when the devices are not actively in use.
I had this happen with umass and ucom devices 3 times today. The machine
hangs solid, there are no obvious signs of a panic or trap to DDB. I
can't provide backtraces unfortunately -- these hangs happen on both my
laptop and desktop, and I usually have X running -- if I had more
specific information, I'd open a PR.
Again, there seems to be no reason why this should happen, the devices
are off-the-shelf consumer items known to work with existing drivers,
and have been repeatedly used in other OSes without these hangs
happening; consider this an "anecdotal report".
[For some reason my IBM laptop will often not allow me to break into DDB
on a driver related panic, and will just immediately reboot -- I lack
free time to track down exactly why this could be.
My desktop has a USB keyboard and this appears not to be supported by
DDB, I ordered a PS/2 keyboard which hasn't arrived, but that's another
story.]
thanks
BMS
On my computer I had to disable USB support in the BIOS because it
'conflicted' with USB support of FreeBSD.
FreeBSD still detects USB and all connected devices.
Maybe this helps on your computer also.
Ronald.
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