Date: Sat, 25 Aug 2007 09:31:51 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: rsidd120@gmail.com Cc: freebsd-usb@freebsd.org Subject: Re: usb/105361: [panic] Kernel panic during unmounting mass storage (Creative mp3 player) Message-ID: <20070825.093151.2040712281.imp@bsdimp.com> In-Reply-To: <6a506d980708242103j6d34449exadf3debc1275656f@mail.gmail.com> References: <200708241010.l7OAA7bl066026@freefall.freebsd.org> <20070824.212230.-957833176.imp@bsdimp.com> <6a506d980708242103j6d34449exadf3debc1275656f@mail.gmail.com>
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In message: <6a506d980708242103j6d34449exadf3debc1275656f@mail.gmail.com>
"Rahul Siddharthan" <rsidd120@gmail.com> writes:
: On 8/25/07, M. Warner Losh <imp@bsdimp.com> wrote:
: > In message: <200708241010.l7OAA7bl066026@freefall.freebsd.org> "Rahul Siddharthan" <rsidd@online.fr> writes:
: -snip-
: > : I followed the suggested change to usb_subr.c here:
: > : http://lists.freebsd.org/pipermail/freebsd-questions/2006-February/112698.html
: > : and, after this, the system creates a da0 device, and
: > : mount -t msdosfs /dev/da0s1 /mnt
: > : works. I haven't yet got a panic by unmounting and removing, but removing
: > : without unmounting does cause a panic still (as you say you are aware).
:
: -snip-
:
: > We only do the clear endpoint stall in FreeBSD 7 when the device has
: > been quirked to do a clearstall. Is your device one that has this
: > quirk?
:
:
: The device is reported as
: umass0: <vendor 0x0457 USB Mass Storage Device, class 0/0, rev
: 2.00/1.00, addr 2> on uhub2
:
: and pciconf -v -l gives (for the USB controller)
: vendor = 'VIA Technologies Inc'
: device = 'VT82xxxxx UHCI USB 1.1 Controller (All VIA Chipsets)'
: class = serial bus
: subclass = USB
: uhci1@pci0:11:1: class=0x0c0300 card=0x12340925 chip=0x30381106
: rev=0x50 hdr=0x00
: vendor = 'VIA Technologies Inc'
: device = 'VT82xxxxx UHCI USB 1.1 Controller (All VIA Chipsets)'
: class = serial bus
: subclass = USB
: ehci0@pci0:11:2: class=0x0c0320 card=0x12340925 chip=0x31041106
: rev=0x51 hdr=0x00
: vendor = 'VIA Technologies Inc'
: device = 'VT6202/12 USB 2.0 Enhanced Host Controller'
: class = serial bus
: subclass = USB
Yes, but does it have this quirk? Please send usbdevs -v for this
device.
Warner
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