From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e34.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id m2QL795v009431 for ; Wed, 26 Mar 2008 17:07:09 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m2QL8Zdw181448 for ; Wed, 26 Mar 2008 15:08:35 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m2QL8YTT011833 for ; Wed, 26 Mar 2008 15:08:35 -0600 Subject: Re: [PATCH 0/3 (RFC)](memory hotplug) freeing pages allocated by bootmem for hotremove From: Badari Pulavarty In-Reply-To: <20080322090539.2B1B.E1E9C6FF@jp.fujitsu.com> References: <20080314231112.20D7.E1E9C6FF@jp.fujitsu.com> <1206119137.8476.1.camel@dyn9047017100.beaverton.ibm.com> <20080322090539.2B1B.E1E9C6FF@jp.fujitsu.com> Content-Type: text/plain Date: Wed, 26 Mar 2008 14:08:59 -0800 Message-Id: <1206569339.31756.0.camel@dyn9047017100.beaverton.ibm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Yasunori Goto Cc: Linux Kernel ML , linux-mm , Yinghai Lu , Andrew Morton List-ID: On Sat, 2008-03-22 at 09:09 +0900, Yasunori Goto wrote: > > > > 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! Okay, its an issue with CONFIG_SPARSEMEM_VMEMMAP=y I disabled it for now. Thanks, Badari -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org