Date: Fri, 10 Dec 2010 21:15:08 +0200 From: Andriy Gapon <avg@freebsd.org> To: Hans Petter Selasky <hselasky@c2i.net> Cc: Oleg Nauman <oleg.nauman@gmail.com>, freebsd-usb@freebsd.org, freebsd-current@freebsd.org Subject: Re: USB related panic on 8.2-PRERELEASE Message-ID: <4D027C3C.2030606@freebsd.org> In-Reply-To: <201012101915.40878.hselasky@c2i.net> References: <AANLkTi=OxWODd0cQR%2BjKz7=Hxpnd52=HfLbuarfAiqbW@mail.gmail.com> <AANLkTikyNpfBMXKeDcy1PYfAasYovmwjKZqRt8uXk%2BE-@mail.gmail.com> <AANLkTinVuEg=YicnOSXm02NEWbpT4dbfVvyLiiUXzqq-@mail.gmail.com> <201012101915.40878.hselasky@c2i.net>
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on 10/12/2010 20:15 Hans Petter Selasky said the following: > Hi, > > I think this is a known issue which never got fixed. Please try the attached > patch and report back. > > XXX_SAFE != XXX_REAL_SAFE :-) SAFE in sys/queue.h macros means only that it is safe to unlink/free current element in the loop body. Specifically it has nothing to do with concurrent modifications and locking. So, yes :) > On Thursday 09 December 2010 12:02:48 Oleg Nauman wrote: >> On Wed, Dec 8, 2010 at 7:05 PM, Oleg Nauman <oleg.nauman@gmail.com> wrote: >>> Hello Hans, >>> >>> On Wed, Dec 8, 2010 at 3:33 PM, Hans Petter Selasky <hselasky@c2i.net> > wrote: >>>> On Wednesday 08 December 2010 11:41:28 Oleg Nauman wrote: >>>>> Hello, >>>>> >>>>> Unfortunately my notebook experienced the crash during the attempts to >>>>> attach EVDO modem supplied with builtin MicroSD cardreader. >>>>> Related core.txt file is attached as well as 'usbconfig >>>>> dump_all_config_desc' output (all_config.txt) >>>>> USB subsystem reports endless USB_ERR_STALLED events during attempts >>>>> to attach umass device, but attaches it finally ( sometimes it >>>>> attached after two attempts, sometimes it trying to attach during >>>>> 15-20 minutes ).MicroSD is inserted there, without any effect on >>>>> attachment attempts though. >>>> >>>> Hi, >>>> >>>> Can you reproduce the panic using a kernel built with INVARIANTS options >>>> and DEBUG_MEMGUARD . >>> >>> I rebuilt my kernel with options you mentioned ( have added >>> INVARIANT_SUPPORT required by INVARIANTS though ) >>> >>> Waiting on panic.. >> >> Got it finally ( core.txt file is attached ) >> -- Andriy Gapon
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