From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kamalesh Babulal Subject: [BUG] next-20081231 - S390x kernel panics while bootup at init_sched_build_groups() Date: Wed, 31 Dec 2008 21:33:29 +0530 Message-ID: <20081231160329.GC4268@linux.vnet.ibm.com> References: <20090101003258.eaa44700.sfr@canb.auug.org.au> Reply-To: Kamalesh Babulal Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from E23SMTP01.au.ibm.com ([202.81.18.162]:58359 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755914AbYLaQJv (ORCPT ); Wed, 31 Dec 2008 11:09:51 -0500 Content-Disposition: inline In-Reply-To: <20090101003258.eaa44700.sfr@canb.auug.org.au> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Rothwell Cc: linux-next@vger.kernel.org, LKML , linux-s390@vger.kernel.org, heiko.carstens@de.ibm.com, schwidefsky@de.ibm.com Hi, next-2001231 kernel panic's on S390x box, while boot up Linux version 2.6.28-next-20081231-autotest (root@lnxabat1) (gcc versio= n 4.1.0 ( SUSE Linux)) #1 SMP Wed Dec 31 08:43:37 CST 2008 setup: Linux is running as a z/VM guest operating system in 64-bit mode Zone PFN ranges: DMA 0x00000000 -> 0x00080000 Normal 0x00080000 -> 0x00080000 Movable zone start PFN for each node early_node_map=C3=9D1=C2=A8 active PFN ranges 0: 0x00000000 -> 0x00040000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 25= 8560 Kernel command line: root=3D/dev/dasdc1 selinux=3D0 IDENT=3D1230735656 = BOOT_IMAGE=3D0 PID hash table entries: 4096 (order: 12, 32768 bytes) console =C3=9DttyS0=C2=A8 enabled Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Memory: 1015808k/1048576k available (2483k kernel code, 0k reserved, 13= 72k data, 196k init) Write protected kernel read-only data: 0x12000 - 0x382fff SLUB: Genslabs=3D12, HWalign=3D256, Order=3D0-3, MinObjects=3D0, CPUs=3D= 64, Nodes=3D1 Security Framework initialized SELinux: Disabled at boot. Mount-cache hash table entries: 256 cpu: 4 configured CPUs, 0 standby CPUs cpu: Processor 0 started, address 2, identification 20AB8A cpu: Processor 1 started, address 0, identification 00AB8A cpu: Processor 2 started, address 1, identification 10AB8A cpu: Processor 3 started, address 3, identification 30AB8A Brought up 4 CPUs Unable to handle kernel pointer dereference at virtual kernel address 0= 000000100 3fa000 Oops: 003b =C3=9D#1=C2=A8 SMP Modules linked in: CPU: 0 Not tainted 2.6.28-next-20081231-autotest #1 Process swapper (pid: 1, task: 000000003fe80000, ksp: 000000003fe8ba78) Krnl PSW : 0704000180000000 0000000000035632 (init_sched_build_groups+0= xae/0x4a4 ) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3 Krnl GPRS: 00000000003c27b0 00000001003fa278 0000000000000000 000000000= 03c2508 0000000000000000 000000000026f818 0000000000000000 000000000= 0000000 0000000000000000 000000003fe8be50 00000000ffffffff 000000003= fe8bcf0 Krnl Code: 0000000000035626: a7290000 lghi 00: HCPGSP2629I= The virt ual machine is placed in CP mode due to a SIGP stop from CPU 02. 01: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP = stop from CPU 02. 03: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP = stop from CPU 02. 02: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000= 00021416-- 0:conmux-control -- time-stamp -- Dec/31/08 7:04:54 -- -- 0:conmux-control -- time-stamp -- Dec/31/08 7:22:18 -- (bot:conmon-payload) disconnected --=20 Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL.