From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 12 Jan 2001 10:40:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 12 Jan 2001 10:40:17 -0500 Received: from e56090.upc-e.chello.nl ([213.93.56.90]:32011 "EHLO unternet.org") by vger.kernel.org with ESMTP id ; Fri, 12 Jan 2001 10:40:06 -0500 Date: Fri, 12 Jan 2001 16:36:33 +0100 From: Frank de Lange To: Andrew Morton Cc: "Maciej W. Rozycki" , linux-kernel@vger.kernel.org Subject: Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related? Message-ID: <20010112163633.A22301@unternet.org> In-Reply-To: <20010110223015.B18085@unternet.org> <3A5D9D87.8A868F6A@uow.edu.au> <20010111201819.B3269@unternet.org> <3A5E0849.EB428D70@mandrakesoft.com>, <3A5E0849.EB428D70@mandrakesoft.com>; <20010112012839.A11091@unternet.org> <3A5EED14.88D8D9AF@uow.edu.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3A5EED14.88D8D9AF@uow.edu.au>; from andrewm@uow.edu.au on Fri, Jan 12, 2001 at 10:40:04PM +1100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 12, 2001 at 10:40:04PM +1100, Andrew Morton wrote: > Here is a debugging patch. Could you please apply this, > rebuild and: > > 1: Type ALT-SYSRQ-A when everything is good > 2: Type ALT-SYSRQ-A when everything is bad > 3: send the resulting logs. OK, here's the results I get... Before network hang =================== print_PIC() printing PIC contents print_IO_APIC() testing the IO APIC....................... .................................... done. print_all_local_APICs() ... APIC ID: 01000000 (1) ... APIC VERSION: 00040011 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000001000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000010000000000000000 ... APIC ID: 00000000 (0) ... APIC VERSION: 00040011 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000010000000000000001000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000001000 NOTICE: results differ every time I hit ALT-SYSRQ-A. The '1' bit at 'row 11, col. 26' stays '1' no matter how many times I use the magic keys. The other '1' bits jump around a bit, or disappear alltogether. Also, the sequence in which the APICs appear in the dump sometimes differs (this example shows 1 first, then 0, other times you'd see 0 first, then 1) After network hang ================== print_PIC() printing PIC contents print_IO_APIC() testing the IO APIC....................... .................................... done. print_all_local_APICs() ... APIC ID: 00000000 (0) ... APIC VERSION: 00040011 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000010000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000010000000000000000 ... APIC ID: 01000000 (1) ... APIC VERSION: 00040011 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000001000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000010000000000000000 NOTICE: hmmm... see, now that '1' bit at row 11, col. 26 for APIC 0 which was '1' before has turned to '0'. It will stay '0' no matter how many times I hit the magic keys... It seems to have been replaced by the '1' bit at row 11, col. 10, since that bit stays '1' no matter how many magic I throw at it... Hope this helps... If you need more, let me know... Cheers//Frank -- WWWWW _______________________ ## o o\ / Frank de Lange \ }# \| / \ ##---# _/ \ #### \ +31-320-252965 / \ frank@unternet.org / ------------------------- [ "Omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est." ] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/