Date: Tue, 2 Nov 2010 13:00:54 +0100 From: Hans Petter Selasky <hselasky@freebsd.org> To: Alexander Leidinger <Alexander@leidinger.net> Cc: Alexander Motin <mav@freebsd.org>, "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org> Subject: Re: usbconfig reset ugen4.2 hanging since an hour Message-ID: <201011021300.54515.hselasky@freebsd.org> In-Reply-To: <20101102110134.53027bx6btjokpgc@webmail.leidinger.net> References: <201011021036.41617.hselasky@freebsd.org> <20101102110134.53027bx6btjokpgc@webmail.leidinger.net>
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On Tuesday 02 November 2010 11:01:34 Alexander Leidinger wrote: > # procstat -kk 29213 > PID TID COMM TDNAME KSTACK > 29213 100291 usbconfig - mi_switch+0x188 > sleepq_switch+0x13c sleepq_timedwait+0x40 _sleep+0x320 pause+0x30 > usb_pause_mtx+0x94 usb_ioctl+0x171 devfs_ioctl_f+0x73 kern_ioctl+0x9d > ioctl+0xc5 syscallenter+0x1af syscall+0x34 Xint0x80_syscall+0x21 > > > somewhere in umass_detach(), which is preventing the usbconfig reset from > > No umass_detach in there... Hi, The USB threads are joined into a single process and not visible from "ps". Not sure how you can get a list of all threads. You need to enter GDB or run GDB on /dev/mem and dump all threads there and look for USB and umass keywords. --HPS
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