Date: Sat, 25 Aug 2007 09:33:09 +0530 From: "Rahul Siddharthan" <rsidd120@gmail.com> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-usb@freebsd.org Subject: Re: usb/105361: [panic] Kernel panic during unmounting mass storage (Creative mp3 player) Message-ID: <6a506d980708242103j6d34449exadf3debc1275656f@mail.gmail.com> In-Reply-To: <20070824.212230.-957833176.imp@bsdimp.com> References: <200708241010.l7OAA7bl066026@freefall.freebsd.org> <20070824.212230.-957833176.imp@bsdimp.com>
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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 - Rahul
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