usb/134193: System freeze on usb MP3 player insertion

Henri-Pierre Charles hpcharles at gmail.com
Mon May 4 12:00:14 UTC 2009


The following reply was made to PR usb/134193; it has been noted by GNATS.

From: Henri-Pierre Charles <hpcharles at gmail.com>
To: FreeBSD-gnats-submit at freebsd.org, freebsd-usb at freebsd.org
Cc: Henri-Pierre Charles <hpc at hpch.net>
Subject: Re: usb/134193: System freeze on usb MP3 player insertion
Date: Mon, 4 May 2009 13:25:05 +0200

 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=3D134193
 >
 >>Category: =A0 =A0 =A0 usb
 >>Responsible: =A0 =A0freebsd-usb
 >>Synopsis: =A0 =A0 =A0 System freeze on usb MP3 player insertion
 >>Arrival-Date: =A0 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)
 
 --=20
 HPC


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