Date: Tue, 02 Nov 2010 14:30:34 +0200 From: Andriy Gapon <avg@icyb.net.ua> To: Hans Petter Selasky <hselasky@freebsd.org> 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: <4CD0046A.1000801@icyb.net.ua> In-Reply-To: <201011021300.54515.hselasky@freebsd.org> References: <201011021036.41617.hselasky@freebsd.org> <20101102110134.53027bx6btjokpgc@webmail.leidinger.net> <201011021300.54515.hselasky@freebsd.org>
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on 02/11/2010 14:00 Hans Petter Selasky said the following: > 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. -H option would that for ps. But I am not why mentioned ps, because procstat shows the threads, e.g. procstat -k -a will show stacks of all non-running kernel threads. -- Andriy Gapon
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