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: <1163629342.4974.36.camel@domain.hid> References: <200611151121.51836.s.zimmermann@domain.hid> <200611151544.00429.s.zimmermann@domain.hid> <455B8016.2020605@domain.hid> <1163629342.4974.36.camel@domain.hid> Content-Type: text/plain Date: Wed, 15 Nov 2006 23:44:21 +0100 Message-Id: <1163630662.4974.41.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 23:22 +0100, Philippe Gerum wrote: > 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. > Mm, ok, got it. It's indeed an out-of-sequence issue. Will fix. -- Philippe.