Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759990AbYCVAMt (ORCPT ); Fri, 21 Mar 2008 20:12:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753331AbYCVAMk (ORCPT ); Fri, 21 Mar 2008 20:12:40 -0400 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:53642 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752956AbYCVAMi (ORCPT ); Fri, 21 Mar 2008 20:12:38 -0400 Date: Sat, 22 Mar 2008 09:09:22 +0900 From: Yasunori Goto To: Badari Pulavarty Subject: Re: [PATCH 0/3 (RFC)](memory hotplug) freeing pages allocated by bootmem for hotremove Cc: Linux Kernel ML , linux-mm , Yinghai Lu , Andrew Morton In-Reply-To: <1206119137.8476.1.camel@dyn9047017100.beaverton.ibm.com> References: <20080314231112.20D7.E1E9C6FF@jp.fujitsu.com> <1206119137.8476.1.camel@dyn9047017100.beaverton.ibm.com> X-Mailer-Plugin: BkASPil for Becky!2 Ver.2.068 Message-Id: <20080322090539.2B1B.E1E9C6FF@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.45 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4352 Lines: 102 > > Do you have any updates to this. I am getting following boot panic while > testing this. Before I debug it, I want to make sure its not already > fixed. Please let me know. Hmmmm. No, I don't. Could you debug it? This may come from powerpc environment. Thanks. > > Thanks, > Badari > > Linux version 2.6.25-rc5-mm1 (root@elm3b155) (gcc version 3.3.3 (SuSE Linux)) #2 SMP Fri Mar 21 07:48:29 PST 2008 > [boot]0012 Setup Arch > NUMA associativity depth for CPU/Memory: 3 > adding cpu 0 to node 0 > node 0 > NODE_DATA() = c000000071fea100 > start_paddr = 0 > end_paddr = 72000000 > bootmap_paddr = 71fdb000 > reserve_bootmem 0 7cc000 > reserve_bootmem 23d0000 10000 > reserve_bootmem 77b6000 84a000 > reserve_bootmem 71fdb000 f000 > reserve_bootmem 71fea100 1e00 > reserve_bootmem 71febf68 14098 > PCI host bridge /pci@800000020000002 ranges: > IO 0x000003fe00200000..0x000003fe002fffff -> 0x0000000000000000 > MEM 0x0000040080000000..0x00000400bfffffff -> 0x00000000c0000000 > PCI host bridge /pci@800000020000003 ranges: > IO 0x000003fe00700000..0x000003fe007fffff -> 0x0000000000000000 > MEM 0x00000401c0000000..0x00000401ffffffff -> 0x00000000c0000000 > EEH: PCI Enhanced I/O Error Handling Enabled > PPC64 nvram contains 7168 bytes > Zone PFN ranges: > DMA 0 -> 466944 > Normal 466944 -> 466944 > Movable zone start PFN for each node > Node 0: 262144 > early_node_map[1] active PFN ranges > 0: 0 -> 466944 > [boot]0015 Setup Done > Built 1 zonelists in Node order, mobility grouping on. Total pages: 451440 > Policy zone: DMA > Kernel command line: root=/dev/sda3 selinux=0 elevator=cfq numa=debug kernelcore=1024M > [boot]0020 XICS Init > [boot]0021 XICS Done > PID hash table entries: 4096 (order: 12, 32768 bytes) > clocksource: timebase mult[1352e86] shift[22] registered > Console: colour dummy device 80x25 > console handover: boot [udbg-1] -> real [hvc0] > Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) > Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) > freeing bootmem node 0 > Unable to handle kernel paging request for data at address 0xcf7f80000000000c > Faulting instruction address: 0xc0000000000ce3e8 > Oops: Kernel access of bad area, sig: 11 [#1] > SMP NR_CPUS=32 NUMA pSeries > Modules linked in: > NIP: c0000000000ce3e8 LR: c0000000000cf714 CTR: 800000000013f270 > REGS: c0000000007639f0 TRAP: 0300 Not tainted (2.6.25-rc5-mm1) > MSR: 8000000000009032 CR: 44002022 XER: 00000008 > DAR: cf7f80000000000c, DSISR: 0000000042010000 > TASK = c000000000689910[0] 'swapper' THREAD: c000000000760000 CPU: 0 > GPR00: fffffffffffffffd c000000000763c70 c000000000761be0 0000000000000000 > GPR04: cf7f800000000000 0000000000000000 0000000000000000 0000000000000001 > GPR08: 0000000000000000 fffffffffffffffe 0000000000000088 cf00000000000000 > GPR12: 0000000000004000 c00000000068a380 0000000000000000 0000000000000000 > GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > GPR20: 4000000001c00000 0000000000000000 0000000002241ed8 0000000000000000 > GPR24: 0000000002242148 0000000000000000 c000000071feb000 0000000000000000 > GPR28: c000000071feb000 0000000000000001 c0000000006e2bd8 cf7f800000000000 > NIP [c0000000000ce3e8] .set_page_bootmem_info+0x10/0x38 > LR [c0000000000cf714] .register_page_bootmem_info_section+0xc4/0x17c > Call Trace: > [c000000000763c70] [000000000000001a] 0x1a (unreliable) > [c000000000763d10] [c0000000000cf8f0] .register_page_bootmem_info_node+0x124/0x158 > [c000000000763dc0] [c0000000006290e4] .free_all_bootmem_node+0x1c/0x3c > [c000000000763e50] [c00000000061d618] .mem_init+0xbc/0x260 > [c000000000763ee0] [c00000000060bbcc] .start_kernel+0x2f4/0x3f4 > [c000000000763f90] [c000000000008594] .start_here_common+0x54/0xc0 > Instruction dump: > eb61ffd8 eb81ffe0 eba1ffe8 7c0803a6 ebc1fff0 ebe1fff8 7d808120 4e800020 > 2fa50000 3920fffe 3800fffd 409e000c <9124000c> 48000008 9004000c 38000800 > ---[ end trace 31fd0ba7d8756001 ]--- > Kernel panic - not syncing: Attempted to kill the idle task! > > -- Yasunori Goto -- 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/