Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 30 Jul 2002 22:43:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 30 Jul 2002 22:43:50 -0400 Received: from sunny.pacific.net.au ([203.25.148.40]:45530 "EHLO sunny.pacific.net.au") by vger.kernel.org with ESMTP id ; Tue, 30 Jul 2002 22:43:50 -0400 From: "David Luyer" To: Cc: "'Alan Cox'" Subject: Linux 2.4.19ac3rc3 on IBM x330/x340 SMP - "ps" time skew Date: Wed, 31 Jul 2002 12:46:59 +1000 Message-ID: <013c01c2383c$8b2d4bf0$638317d2@pacific.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2139 Lines: 58 In Linux 2.4.19ac3rc3 on IBM x330/x340 SMP systems we're seeing this: luyer@praxis8:~$ ps auxwww | tail -1 luyer 1025 0.0 0.0 1276 352 pts/2 S Aug06 0:00 tail -1 luyer@praxis8:~$ date Wed Jul 31 12:35:16 EST 2002 luyer@praxis8:~$ cat /proc/$$/stat 1053 (bash) S 1052 1053 1053 34818 1056 0 99 56 294 99 1 0 0 0 15 0 0 0 49574810 2244608 316 4294 967295 134512640 134997952 3221225056 3221224264 1074760249 0 65536 3686404 1266761467 3222376853 0 0 17 0 luyer@praxis8:~$ cat /proc/uptime 495803.96 481602.41 luyer@praxis8:~$ cat /proc/stat cpu 1570707 3 1853018 95737544 cpu0 685268 1 876356 48019011 cpu1 885439 2 976662 47718533 page 1720960 27277642 swap 25 534 intr 244887271 49580636 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1742620 0 16 16 193563981 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 disk_io: (8,0):(988585,67688,1019318,920897,8472052) (8,1):(1832129,206174,2422602,1625955,460832 32) ctxt 81010049 btime 1027587797 processes 98440 Note the time skew in the "ps" output (the clock time is correct). This is happening on all ten IBM x330/x340's we're running this in SMP on this kernel. We have fourteen Intel ISP 2150 servers running UP with IO-APIC on SMP motherboards which are not experiencing this issue. David. -- David Luyer Phone: +61 3 9674 7525 Network Development Manager P A C I F I C Fax: +61 3 9699 8693 Pacific Internet (Australia) I N T E R N E T Mobile: +61 4 1111 BYTE http://www.pacific.net.au/ NASDAQ: PCNTF - 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/