Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757737Ab0KKGiJ (ORCPT ); Thu, 11 Nov 2010 01:38:09 -0500 Received: from e9.ny.us.ibm.com ([32.97.182.139]:41109 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757543Ab0KKGiH (ORCPT ); Thu, 11 Nov 2010 01:38:07 -0500 Subject: Re: [Call Trace: 2.6.37-rc1-git7 & 2.6.37-rc1-git8, Powerpc] LTP msgctl11 test case From: Subrata Modak Reply-To: subrata@linux.vnet.ibm.com To: Peter Zijlstra , Ingo Molnar Cc: DIVYA PRAKASH , linux-kernel , Kamalesh Babulal , Linuxppc-dev In-Reply-To: <1289457219.5622.15.camel@subratamodak.linux.ibm.com> References: <1289457219.5622.15.camel@subratamodak.linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Organization: IBM Date: Thu, 11 Nov 2010 12:08:01 +0530 Message-Id: <1289457481.5622.16.camel@subratamodak.linux.ibm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-8.el5_2.2) Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6463 Lines: 129 Kindly note that the same thing was not observed till git6 on the same machine. Regards-- Subrata On Thu, 2010-11-11 at 12:03 +0530, Subrata Modak wrote: > Hi Peter/Ingo, > > LTPś msgctl11 test case creates Call trace and Exception for kernels > 2.6.37-rc1-git7 & 2.6.37-rc1-git8. Please see the dmesg below: > > ================================================ > msgctl11: page allocation failure. order:0, mode:0x20 > Call Trace: > [c0000000fffcef30] [c000000000014c74] .show_stack+0x74/0x1c0 (unreliable) > [c0000000fffcefe0] [c00000000015e938] .__alloc_pages_nodemask+0x6d8/0x950 > [c0000000fffcf160] [c0000000001a0c60] .alloc_pages_current+0xa0/0x160 > [c0000000fffcf200] [c0000000001abfd8] .new_slab+0x358/0x370 > [c0000000fffcf2b0] [c0000000001ac1cc] .__slab_alloc+0x1dc/0x500 > [c0000000fffcf390] [c0000000001ad808] .kmem_cache_alloc+0x1a8/0x1b0 > [c0000000fffcf440] [c0000000004eec88] .scsi_pool_alloc_command+0x58/0xa0 > [c0000000fffcf4d0] [c0000000004eed60] .scsi_host_alloc_command+0x30/0xb0 > [c0000000fffcf560] [c0000000004eee00] .__scsi_get_command+0x20/0xd0 > [c0000000fffcf5f0] [c0000000004ef158] .scsi_get_command+0x58/0xf0 > [c0000000fffcf690] [c0000000004f7948] .scsi_setup_fs_cmnd+0x108/0x120 > [c0000000fffcf720] [d000000001484ad8] .sd_prep_fn+0x2b8/0xc70 [sd_mod] > [c0000000fffcf800] [c0000000003ea92c] .blk_peek_request+0x14c/0x310 > [c0000000fffcf8b0] [c0000000004f6b14] .scsi_request_fn+0x94/0x560 > [c0000000fffcf980] [c0000000003eba00] .__blk_run_queue+0x90/0x1b0 > [c0000000fffcfa00] [c0000000003ebc20] .blk_run_queue+0x30/0x60 > [c0000000fffcfa90] [c0000000004f5d84] .scsi_run_queue+0x104/0x3c0 > [c0000000fffcfb60] [c0000000004f7228] .scsi_next_command+0x48/0x70 > [c0000000fffcfbf0] [c0000000004f8280] .scsi_io_completion+0x3e0/0x580 > [c0000000fffcfcd0] [c0000000004ee0a8] .scsi_finish_command+0x128/0x180 > [c0000000fffcfd70] [c0000000004f8548] .scsi_softirq_done+0x118/0x1e0 > [c0000000fffcfe10] [c0000000003f2410] .blk_done_softirq+0xb0/0xe0 > [c0000000fffcfea0] [c0000000000943c8] .__do_softirq+0x118/0x290 > [c0000000fffcff90] [c000000000031f58] .call_do_softirq+0x14/0x24 > [c0000000a0992a20] [c00000000000f554] .do_softirq+0xf4/0x120 > [c0000000a0992ac0] [c0000000000941d4] .irq_exit+0xb4/0xc0 > [c0000000a0992b40] [c00000000000f7e0] .do_IRQ+0x160/0x2c0 > [c0000000a0992c00] [c000000000004898] hardware_interrupt_entry+0x18/0x80 > --- Exception: 501 at .do_raw_spin_unlock+0x80/0xe0 > LR = ._raw_spin_unlock+0x30/0x50 > [c0000000a0992f70] [c00000000018943c] .__page_check_address+0x16c/0x1a0 > [c0000000a0993010] [c00000000018a5b4] .page_referenced_one+0x54/0x200 > [c0000000a09930d0] [c00000000018ab4c] .page_referenced+0x3ec/0x490 > [c0000000a0993200] [c000000000168bbc] .shrink_page_list+0x2bc/0x6d0 > [c0000000a0993350] [c00000000016942c] .shrink_inactive_list+0x15c/0x580 > [c0000000a0993460] [c000000000169f10] .shrink_zone+0x2e0/0x4b0 > [c0000000a0993580] [c00000000016b3c0] .do_try_to_free_pages+0x110/0x510 > [c0000000a0993670] [c00000000016bb3c] .try_to_free_pages+0xbc/0x1a0 > [c0000000a0993780] [c00000000015e7a0] .__alloc_pages_nodemask+0x540/0x950 > [c0000000a0993900] [c0000000001a0db8] .alloc_page_vma+0x98/0x1d0 > [c0000000a09939a0] [c00000000017c7f4] .do_wp_page+0x144/0xb60 > [c0000000a0993a90] [c00000000017eef0] .handle_mm_fault+0x670/0xb50 > [c0000000a0993b80] [c0000000006feea4] .do_page_fault+0x344/0x780 > [c0000000a0993e30] [c00000000000522c] handle_page_fault+0x20/0x74 > Mem-Info: > Node 0 DMA per-cpu: > CPU 0: hi: 6, btch: 1 usd: 4 > CPU 1: hi: 6, btch: 1 usd: 5 > CPU 2: hi: 6, btch: 1 usd: 0 > CPU 3: hi: 6, btch: 1 usd: 0 > CPU 4: hi: 6, btch: 1 usd: 0 > CPU 5: hi: 6, btch: 1 usd: 0 > CPU 6: hi: 6, btch: 1 usd: 4 > CPU 7: hi: 6, btch: 1 usd: 0 > CPU 8: hi: 6, btch: 1 usd: 2 > CPU 9: hi: 6, btch: 1 usd: 0 > CPU 10: hi: 6, btch: 1 usd: 0 > CPU 11: hi: 6, btch: 1 usd: 0 > CPU 12: hi: 6, btch: 1 usd: 0 > CPU 13: hi: 6, btch: 1 usd: 0 > CPU 14: hi: 6, btch: 1 usd: 0 > CPU 15: hi: 6, btch: 1 usd: 0 > CPU 16: hi: 6, btch: 1 usd: 0 > CPU 17: hi: 6, btch: 1 usd: 2 > CPU 18: hi: 6, btch: 1 usd: 2 > CPU 19: hi: 6, btch: 1 usd: 0 > CPU 20: hi: 6, btch: 1 usd: 3 > CPU 21: hi: 6, btch: 1 usd: 1 > CPU 22: hi: 6, btch: 1 usd: 1 > CPU 23: hi: 6, btch: 1 usd: 0 > active_anon:17322 inactive_anon:4230 isolated_anon:2650 > active_file:7 inactive_file:29 isolated_file:46 > unevictable:0 dirty:0 writeback:343 unstable:0 > free:57 slab_reclaimable:426 slab_unreclaimable:22103 > mapped:19 shmem:0 pagetables:16551 bounce:0 > Node 0 DMA free:832kB min:8128kB low:10112kB high:12160kB active_anon:1108608kB inactive_anon:270720kB active_file:448kB inactive_file:1856kB unevictable:0kB isolated(anon):169600kB isolated(file):2944kB present:4190720kB mlocked:0kB dirty:0kB writeback:21952kB mapped:1216kB shmem:0kB slab_reclaimable:27264kB slab_unreclaimable:1414592kB kernel_stack:156336kB pagetables:1059264kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:69 all_unreclaimable? no > lowmem_reserve[]: 0 0 0 > Node 0 DMA: 7*64kB 3*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 832kB > 5188 total pagecache pages > 4932 pages in swap cache > Swap cache stats: add 37086, delete 32154, find 29567/36415 > Free swap = 3652416kB > Total swap = 4095936kB > 65536 pages RAM > 1557 pages reserved > 31189 pages shared > 59735 pages non-shared > SLUB: Unable to allocate memory on node -1 (gfp=0x20) > cache: kmalloc-128, object size: 128, buffer size: 128, default order: 0, min order: 0 > node 0: slabs: 92, objs: 47104, free: 0 > ================================================ > > Ways to reproduce the problem: > 1) Fetch, build and install LTP: > git clone git://ltp.git.sourceforge.net/gitroot/ltp/ltp > cd ltp > ./configure > make > make install > 2) Execute > cd /opt/ltp > ./runltp -s msgctl11 -k DMESG_LOG_DIR > > Verify the results under /opt/ltp/results and /opt/ltp/output directory > > Regards-- > Subrata > -- 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/