usb/105186: USB 2.0/ehci on FreeBSD 6.2-PRE/AMD64 crashes box

[Hans Petter Selasky]

The following reply was made to PR usb/105186; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky at c2i.net>
To: Undisclosed.Recipients: ;
Cc: "O. Hartmann" <ohartman at zedat.fu-berlin.de>,
 freebsd-gnats-submit at freebsd.org
Subject: Re: usb/105186: USB 2.0/ehci on FreeBSD 6.2-PRE/AMD64 crashes box
Date: Mon, 6 Nov 2006 09:56:07 +0100

 On Sunday 05 November 2006 22:31, O. Hartmann wrote:
 > >Number:         105186
 > >Category:       usb
 > >Synopsis:       USB 2.0/ehci on FreeBSD 6.2-PRE/AMD64 crashes box
 > >Confidential:   no
 > >Severity:       critical
 > >Priority:       high
 > >Responsible:    freebsd-usb
 > >State:          open
 > >Quarter:
 > >Keywords:
 > >Date-Required:
 > >Class:          sw-bug
 > >Submitter-Id:   current-users
 > >Arrival-Date:   Sun Nov 05 21:40:26 GMT 2006
 > >Closed-Date:
 > >Last-Modified:
 > >Originator:     O. Hartmann
 > >Release:        FreeBSD 6.2-PRE/AMD64
 > >Organization:
 >
 > Freie Universit=E4t Berlin
 >
 > >Environment:
 >
 > FreeBSD foo.org 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #8: Sat Nov  4
 > 11:23:20 UTC 2006     root at foo.org:/usr/obj/usr/src/sys/FOO  amd64
 >
 > >Description:
 >
 > FreeBSD 6.2-PRE/AMD64 crashes after first access of USB 2.0 devices, like
 > external disk attached via USB or USB stick.
 >
 > The crash occurs very rapidly after a fresh start of the box and accessing
 > a backup drive (see appropriate dmesg output) writing data. Also accessing
 > a USB stick very often results in a crash of the box!
 >
 > One can alos trigger a crash by accessing the USB 2.0 device while box is
 > under heavy load.
 >
 > Doesn't matter whether SCHED_ULE or SCHED_4BSD is used.
 >
 > Kernel uses ehci for performance reasons.
 >
 > Crashes occur in most cases on our AMD64 based boxes, the i386 based 32 B=
 it
 > boxes with same OS version seem to be more robust.
 >
 > As USB is widely used and many colleagues use USB sticks and USB
 > backup/exchange external drives, usability and stability of USB becomes
 > important.
 >
 > dmesg part of USB device controller:
 >
 > usb0: OHCI version 1.0, legacy support
 > usb0: <OHCI (generic) USB controller> on ohci0
 > usb0: USB revision 1.0
 > uhub0: nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 > uhub0: 10 ports with 10 removable, self powered
 > ehci0: <NVIDIA nForce4 USB 2.0 controller> mem 0xdcdfbc00-0xdcdfbcff irq =
 22
 > at device 11.1 on pci0 ehci0: [GIANT-LOCKED]
 > usb1: EHCI version 1.0
 > usb1: companion controller, 4 ports each: usb0
 > usb1: <NVIDIA nForce4 USB 2.0 controller> on ehci0
 > usb1: USB revision 2.0
 > uhub1: nVidia EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 > uhub1: 10 ports with 10 removable, self powered
 > umass0: Macpower &Tytech Tech USB2.0 Enclosure, rev 2.00/1.00, addr 2
 >
 > dmesg part of USB 2.0 external HD:
 >
 > da0 at umass-sim0 bus 0 target 0 lun 0
 > da0: <SAMSUNG S07GJ10Y304470 VM10> Fixed Direct Access SCSI-2 device
 > da0: 40.000MB/s transfers
 > da0: 190782MB (390721968 512 byte sectors: 255H 63S/T 24321C)
 >
 >
 > dmesg USB stick:
 >
 > umass1: vendor 0x0457 USB Mass Storage Device, rev 2.00/1.00, addr 3
 > da1 at umass-sim1 bus 1 target 0 lun 0
 > da1: <TinyDisk 2006-09-11 0.00> Removable Direct Access SCSI-2 device
 > da1: 40.000MB/s transfers
 > da1: 1000MB (2048000 512 byte sectors: 64H 32S/T 1000C)
 > GEOM_LABEL: Label for provider da1 is msdosfs/STICK01.
 >
 > >How-To-Repeat:
 >
 > Attach USB 2.0 device to AMD64 box and do a lot of I/O ...
 >
 > >Fix:
 >
 > Nothing known. Switching back to USB 1.0/1.1 via ohci isn't a solution due
 > to the worse performance.
 >
 > >Release-Note:
 > >Audit-Trail:
 > >Unformatted:
 
 Hi,
 
 Could you have tried my new USB driver and see if it has the same problem:
 
 #
 # First install /usr/ports/devel/subversion
 # Then:
 #
 
 svn --username anonsvn --password anonsvn \
       checkout svn://svn.turbocat.net/i4b
 #
 # The following commands will
 # install the driver on FreeBSD:
 #
 cd i4b/trunk/i4b/FreeBSD.usb
 make S=3D../src package
 make install
 
 The source is also available from perforce:
 
 http://perforce.freebsd.org/depotTreeBrowser.cgi?FSPC=3D//depot/projects/us=
 b&HIDEDEL=3DNO
 
 =2D-HPS