From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.54) id 1Eu4Pn-000682-JB for garchives@archives.gentoo.org; Wed, 04 Jan 2006 08:54:40 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k048qTH4012796; Wed, 4 Jan 2006 08:52:29 GMT Received: from mail48.e.nsc.no (mail48.e.nsc.no [193.213.115.48]) by robin.gentoo.org (8.13.5/8.13.5) with ESMTP id k048qStE025784 for ; Wed, 4 Jan 2006 08:52:28 GMT Received: from mail.nor.wtbts.org ([213.234.126.131]) by mail48.nsc.no (8.13.5/8.13.5) with ESMTP id k048qQ4u006623 for ; Wed, 4 Jan 2006 09:52:27 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by mail.nor.wtbts.org (Postfix) with ESMTP id AA0E03FA26 for ; Wed, 4 Jan 2006 09:52:26 +0100 (CET) Received: from mail.nor.wtbts.org ([127.0.0.1]) by localhost (mail [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 20947-04 for ; Wed, 4 Jan 2006 09:52:26 +0100 (CET) Received: from nc (unknown [192.168.65.211]) by mail.nor.wtbts.org (Postfix) with ESMTP id 8717F3FA06 for ; Wed, 4 Jan 2006 09:52:26 +0100 (CET) Subject: [gentoo-embedded] lockups with hardened kernel From: Natanael Copa To: gentoo-embedded@lists.gentoo.org Content-Type: text/plain Date: Wed, 04 Jan 2006 09:52:26 +0100 Message-Id: <1136364746.24588.22.camel@nc> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-embedded@gentoo.org Reply-to: gentoo-embedded@lists.gentoo.org Mime-Version: 1.0 X-Mailer: Evolution 2.4.2.1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at wtbts.no X-Archives-Salt: bbdc0c13-77ad-43ec-bd45-664483a21853 X-Archives-Hash: b3b4792bb06089357a0020c2945e4602 I got a report from someone who experienced lockups when using gentoo-embedded built system (2.6.14-hardened-r1) He managed to reproduce it on 2 different computers by doing this: install openssh get an ip address using dhcpcd # create a network stream ssh root@otherbox "dd if=/dev/urandom" > /dev/null wait a while read something from cdrom. Now the box locks up: > Box locked up - no kernel panic, no messages, keyboard's locked up - > no more activity on the net interface lights. When he uses dropbear & udhcpcd it works? > Looks like it may be openssh or dhcpcd related. ?! > dropbear & udhcoc doing the same thing has been running for more than > an hour, no problems. I have not been able to reproduce it. I wonder if anyone here have experienced something similar? Only lockups I have experienced have been lockups after some time of no activity at all. Booting with "noacpi" fixes that. (but i still dont know why it happens) The kernel config used are here: http://tanael.org/Config-2.6.14-hardened-r1 -- Natanael Copa -- gentoo-embedded@gentoo.org mailing list