From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from oss.sgi.com (localhost [127.0.0.1]) by oss.sgi.com (8.12.5/8.12.5) with ESMTP id g79NjIRw027429 for ; Fri, 9 Aug 2002 16:45:18 -0700 Received: (from majordomo@localhost) by oss.sgi.com (8.12.5/8.12.3/Submit) id g79NjIgn027428 for linux-mips-outgoing; Fri, 9 Aug 2002 16:45:18 -0700 X-Authentication-Warning: oss.sgi.com: majordomo set sender to owner-linux-mips@oss.sgi.com using -f Received: from deliverator.sgi.com (deliverator.SGI.COM [204.94.214.10] (may be forged)) by oss.sgi.com (8.12.5/8.12.5) with SMTP id g79Nj7Rw027418 for ; Fri, 9 Aug 2002 16:45:07 -0700 Received: from av.mvista.com (gateway-1237.mvista.com [12.44.186.158]) by deliverator.sgi.com (980327.SGI.8.8.8-aspam/980304.SGI-aspam: SGI does not authorize the use of its proprietary systems or networks for unsolicited or bulk email from the Internet.) via ESMTP id QAA03212 for ; Fri, 9 Aug 2002 16:47:18 -0700 (PDT) mail_from (jsun@mvista.com) Received: from mvista.com (av [127.0.0.1]) by av.mvista.com (8.9.3/8.9.3) with ESMTP id QAA14579; Fri, 9 Aug 2002 16:31:27 -0700 Message-ID: <3D544E9B.6040205@mvista.com> Date: Fri, 09 Aug 2002 16:22:03 -0700 From: Jun Sun User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020408 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-mips@oss.sgi.com Subject: a really really weird crash on swarm Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=1.3 required=5.0 tests=MAY_BE_FORGED version=2.20 X-Spam-Level: * Sender: owner-linux-mips@oss.sgi.com Precedence: bulk Call me crazy - I have seen crash like this. As you can see, the register is loaded with one value and on next instruction it shows another value. What the hell is it possibly going on? This is with today's OSS tree 2.4 branch. Jun Unable to handle kernel paging request at virtual address ffffcbf4, epc == 80120 9d4, ra == 8011bc30 Oops in fault.c::do_page_fault, line 206: $0 : 00000000 10001f00 80120998 00000000 00000001 00000000 00000000 802c71e0 $8 : 10001f00 00001000 8029bca4 8028e060 00000000 00000000 00000012 00000000 $16: ffffcbf4 00000000 00000000 00000001 00000002 8028e880 802c71e0 8feabe48 $24: 00000000 2ad78fd0 8027c000 8027ddd8 ffff6e08 8011bc30 Hi : fffd4abb Lo : 0000e717 epc : 801209d4 Not tainted Status: 10001f02 Cause : 00800008 Process swapper (pid: 0, stackpage=8027c000) Stack: 813da000 ffffffff 8fb40e60 0000008a 813da26c 813da160 00000000 8fb40e60 802c75e0 00000000 00000000 8011bc30 00000000 00000024 813da160 00000000 8011ba58 00000000 00012cf7 0000012b 00000000 8028ec90 00000000 8028ec80 fffffffe 00000000 10001f00 8fe8f1a0 8ffb8cc0 8011b300 00000000 00000000 8010c5d0 8010c7e0 00000000 00000000 8ff9229c 43464531 8ff90bd8 8010c7e0 ... Call Trace: [<8011bc30>] [<8011ba58>] [<8011b300>] [<8010c5d0>] [<8010c7e0>] [<8010c7e0>] [<80255870>] [<80255508>] [<80103240>] [<8010324c>] [<80100450>] [<80258b20>] [<80258b60>] Code: 00000040 0010802a 2610cbf4 1460fffe 3c038000 e2030000 1060 fffb 0000000f Kernel panic: Aiee, killing interrupt handler! In interrupt handler - not syncing <0>Rebooting in 5 seconds..swarm_linux_exit called...passing control back to CF E ffffffff80120998 : ffffffff80120998: 27bdffd0 addiu $sp,$sp,-48 ffffffff8012099c: afbf002c sw $ra,44($sp) ffffffff801209a0: afb20028 sw $s2,40($sp) ffffffff801209a4: afb10024 sw $s1,36($sp) ffffffff801209a8: afb00020 sw $s0,32($sp) ffffffff801209ac: 40016000 mfc0 $at,$12 ffffffff801209b0: 00000000 nop ffffffff801209b4: 34210001 ori $at,$at,0x1 ffffffff801209b8: 38210001 xori $at,$at,0x1 ffffffff801209bc: 40816000 mtc0 $at,$12 ffffffff801209c0: 00000040 ssnop ffffffff801209c4: 00000040 ssnop ffffffff801209c8: 00000040 ssnop ffffffff801209cc: 3c10802a lui $s0,0x802a ffffffff801209d0: 2610cbf4 addiu $s0,$s0,-13324 ffffffff801209d4: c2030000 ll $v1,0($s0) ffffffff801209d8: 1460fffe bnez $v1,ffffffff801209d4 ffffffff801209dc: 3c038000 lui $v1,0x8000 ffffffff801209e0: e2030000 sc $v1,0($s0) ffffffff801209e4: 1060fffb beqz $v1,ffffffff801209d4 ffffffff801209e8: 0000000f sync ffffffff801209ec: 3c02802c lui $v0,0x802c ffffffff801209f0: 8c427984 lw $v0,31108($v0) ffffffff801209f4: 3c03802d lui $v1,0x802d ffffffff801209f8: 8c6389c8 lw $v1,-30264($v1) ffffffff801209fc: 00438823 subu $s1,$v0,$v1 ffffffff80120a00: 12200005 beqz $s1,ffffffff80120a18 ffffffff80120a04: 00711021 addu $v0,$v1,$s1 ffffffff80120a08: 3c01802d lui $at,0x802d ffffffff80120a0c: ac2289c8 sw $v0,-30264($at) ffffffff80120a10: 0c048180 jal ffffffff80120600 ffffffff80120a14: 02202021 move $a0,$s1 ffffffff80120a18: 0000000f sync