From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [Xenomai-help] Kernel crash during queue create/destroy From: Philippe Gerum In-Reply-To: <455B8016.2020605@domain.hid> References: <200611151121.51836.s.zimmermann@domain.hid> <200611151544.00429.s.zimmermann@domain.hid> <455B8016.2020605@domain.hid> Content-Type: text/plain Date: Wed, 15 Nov 2006 23:22:21 +0100 Message-Id: <1163629342.4974.36.camel@domain.hid> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Reply-To: rpm@xenomai.org List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: xenomai@xenomai.org On Wed, 2006-11-15 at 22:01 +0100, Jan Kiszka wrote: > /me unfortunately failed to reproduce your problem here. Instead, I > found a regression in SVN head - different story for a different thread. > It's reproducible here. This bug triggers if you leave enough time between queue creation and deletion for Linux to deal with its usual business, like running workqueues... Additionally, this bug would not trigger with different queue names passed to the creation routines. It seems to be caused by out-of-sequence create/delete requests of /proc entries relayed to the proc_fs subsystem, which does not perform any sanity checks on the data it is submitted. -- Philippe.