Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 29 Nov 2001 13:26:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 29 Nov 2001 13:26:25 -0500 Received: from marao.utad.pt ([193.136.40.3]:19470 "EHLO marao.utad.pt") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Thu, 29 Nov 2001 13:26:13 -0500 Subject: UPDATE - Re: System temporary freeze (but network layer) while blanking CD-RW w/ ide-scsi [2.4.14 and 2.4.16 w/preempt] From: Alvaro Lopes To: Alvaro Lopes Cc: Linux Kernel In-Reply-To: <3C065182.3090909@alvie.com> In-Reply-To: <3C065182.3090909@alvie.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT X-Mailer: Evolution/0.99.0 (Preview Release) Date: 29 Nov 2001 18:22:22 +0000 Message-Id: <1007058142.1837.0.camel@dwarf> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Well, did some sysrq show tasks while blanking and found processes locked (D) in: sleep_on() wait_on_buffer() lock_page() ___wait_on_page() I issued a ^C to cdrecord but blanking kept on. System resumed normal operation after end of blanking. BTW I'm using ReiserFS . ?lvaro On Qui, 2001-11-29 at 15:17, Alvaro Lopes wrote: > Hi all > > This is very weird. A few days ago I started blanking a CD-RW with a > HP9500 IDE drive and after five seconds or so the system froze. I was > still able to ping it and SNAT worked properly too. All services (X, > ssh, smtp) stopped and were almost fully inacessible (I was still able > to see some applets working on X, but no more) and when it finished > blanking, system came back to normal as if nothing had happended. > > At the time I thought it might be a 2.4.14 issue. > > Today I repeated the test with 2.4.16 w/ preemption patch. The same > thing happened. This time I was running a 'vmstat 1': > > .... > .... > .... > 0 4 1 50524 3932 2984 46168 0 0 0 0 102 151 0 0 100 > 0 4 1 50524 3932 2984 46168 0 0 0 0 102 154 0 0 100 > 0 4 1 50524 3928 2984 46168 0 0 0 0 101 149 0 0 100 > 0 4 1 50524 3928 2984 46168 0 0 0 0 101 154 0 0 100 > 1 4 1 50524 3928 2984 46168 0 0 0 0 101 150 0 0 100 > 0 4 1 50524 3928 2984 46168 0 0 0 0 102 151 0 0 100 > 0 4 1 50524 3924 2984 46168 0 0 0 0 101 156 0 0 100 > 0 4 1 50524 3924 2984 46168 0 0 0 0 101 152 0 0 100 > 0 4 1 50524 3924 2984 46168 0 0 0 0 102 155 0 0 100 > 0 4 1 50524 3924 2984 46168 0 0 0 0 101 150 0 0 100 > 0 4 1 50524 3916 2984 46168 0 0 0 0 101 150 0 0 100 > 0 4 1 50524 3916 2984 46168 0 0 0 0 101 151 0 0 100 > > when it got here, system froze.... and then: > > 1 5 1 50584 4216 2820 44996 2348 296 3032 348 113506 165193 0 0 100 > 1 4 1 50572 11416 3192 37112 348 0 668 596 319 1243 4 3 93 > 1 1 0 50552 11468 3520 37420 0 0 308 492 315 794 6 3 91 > 1 0 0 50552 11068 3544 37596 0 0 168 4 127 9301 65 6 29 > 1 0 0 50552 11064 3544 37596 0 0 0 0 104 652 75 0 25 > 2 0 0 50552 11064 3544 37596 0 0 0 0 102 604 75 0 25 > 1 0 procs memory swap io system > cpu > r b w swpd free buff cache si so bi bo in cs us sy id > 1 0 1 50552 10992 3616 37596 0 0 0 140 154 721 75 1 25 > 2 0 0 50552 10992 3616 37596 0 0 0 32 118 679 75 0 25 > 1 0 0 50552 10988 3616 37596 0 0 0 0 101 610 75 0 25 > 1 0 0 50552 10988 3616 37596 0 0 0 0 102 602 74 0 26 > 0 0 0 50552 10104 3652 37664 220 0 308 0 139 741 47 1 52 > 0 0 0 50552 10104 3652 37664 0 0 0 0 107 491 0 0 100 > 0 0 0 50552 10012 3744 37664 0 0 0 160 155 598 1 0 99 > 0 0 0 50552 10320 3744 37704 32 0 84 0 181 1078 18 2 80 > 0 0 0 50552 10284 3780 37704 0 0 0 44 250 834 1 2 97 > > > What is happening here ? Any clues ??? > > ?lvaro Lopes > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/