usb/134193: System freeze on usb MP3 player insertion

[Henri-Pierre Charles]

Hello,

On Sun, May 3, 2009 at 10:00 PM,  <FreeBSD-gnats-submit at freebsd.org> wrote:
> You can access the state of your problem report at any time
> via this link:
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=134193
>
>>Category:       usb
>>Responsible:    freebsd-usb
>>Synopsis:       System freeze on usb MP3 player insertion
>>Arrival-Date:   Sun May 03 20:00:07 UTC 2009

Well, finally I did more testing and with my patch (added quirk
NO_SYNCHRONIZE_CACHE in umass.c) the system allow to mount, read,
write. But it seem that write sometimes failed :

Symptom:
mount the key
cp mp3 file
md5 file
umount the key
re-mout the key
md5 file give an other sum (and the sound is horrible)

I'm not specialist of the usb/umass quirk. Is there anything else to
try ? (FYI the mp3 mount/read/write like a charm on linux xubuntu)

Thanks for any help ! This patch is for helping my daughters to use
their mp3, help me to answer to their question "Dad, why don't you
install linux everywhere ?" :-) (No flame, just kidding)

-- 
HPC