Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751300AbYAOPKA (ORCPT ); Tue, 15 Jan 2008 10:10:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751046AbYAOPJu (ORCPT ); Tue, 15 Jan 2008 10:09:50 -0500 Received: from mail-out.m-online.net ([212.18.0.9]:53597 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750926AbYAOPJt (ORCPT ); Tue, 15 Jan 2008 10:09:49 -0500 Date: Tue, 15 Jan 2008 16:09:49 +0100 From: Olaf Hering To: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: crash in kmem_cache_init Message-ID: <20080115150949.GA14089@aepfle.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6643 Lines: 125 Current linus tree crashes in kmem_cache_init, as shown below. The system is a 8cpu 2.2GHz POWER5 system, model 9117-570, with 4GB ram. Firmware is 240_332, 2.6.23 boots ok with the same config. There is a series of mm related patches in 2.6.24-rc1: commit 04231b3002ac53f8a64a7bd142fde3fa4b6808c6 seems to break it, ==> .git/BISECT_LOG <== git-bisect start # good: [0b8bc8b91cf6befea20fe78b90367ca7b61cfa0d] Linux 2.6.23 git-bisect good 0b8bc8b91cf6befea20fe78b90367ca7b61cfa0d # bad: [cebdeed27b068dcc3e7c311d7ec0d9c33b5138c2] Linux 2.6.24-rc1 git-bisect bad cebdeed27b068dcc3e7c311d7ec0d9c33b5138c2 # good: [9ac52315d4cf5f561f36dabaf0720c00d3553162] sched: guest CPU accounting: add guest-CPU /proc//stat fields git-bisect good 9ac52315d4cf5f561f36dabaf0720c00d3553162 # bad: [b9ec0339d8e22cadf2d9d1b010b51dc53837dfb0] add consts where appropriate in fs/nls/Kconfig fs/nls/Makefile fs/nls/nls_ascii.c fs/nls/nls_base.c fs/nls/nls_cp1250.c fs/nls/nls_cp1251.c fs/nls/nls_cp1255.c fs/nls/nls_cp437.c fs/nls/nls_cp737.c fs/nls/nls_cp775.c fs/nls/nls_cp850.c fs/nls/nls_cp852.c fs/nls/nls_cp855.c fs/nls/nls_cp857.c fs/nls/nls_cp860.c fs/nls/nls_cp861.c fs/nls/nls_cp862.c fs/nls/nls_cp863.c fs/nls/nls_cp864.c fs/nls/nls_cp865.c fs/nls/nls_cp866.c fs/nls/nls_cp869.c fs/nls/nls_cp874.c fs/nls/nls_cp932.c fs/nls/nls_cp936.c fs/nls/nls_cp949.c fs/nls/nls_cp950.c fs/nls/nls_euc-jp.c fs/nls/nls_iso8859-1.c fs/nls/nls_iso8859-13.c fs/nls/nls_iso8859-14.c fs/nls/nls_iso8859-15.c fs/nls/nls_iso8859-2.c fs/nls/nls_iso8859-3.c fs/nls/nls_iso8859-4.c fs/nls/nls_iso8859-5.c fs/nls/nls_iso8859-6.c fs/nls/nls_iso8859-7.c fs/nls/nls_iso8859-9.c fs/nls/nls_koi8-r.c fs/nls/nls_koi8-ru.c fs/nls/nls_koi8-u.c fs/nls/nls_utf8.c git-bisect bad b9ec0339d8e22cadf2d9d1b010b51dc53837dfb0 # bad: [78a26e25ce4837a03ac3b6c32cdae1958e547639] uml: separate timer initialization git-bisect bad 78a26e25ce4837a03ac3b6c32cdae1958e547639 # good: [4acad72ded8e3f0211bd2a762e23c28229c61a51] [IPV6]: Consolidate the ip6_pol_route_(input|output) pair git-bisect good 4acad72ded8e3f0211bd2a762e23c28229c61a51 # good: [64da82efae0d7b5f7c478021840fd329f76d965d] Add support for PCMCIA card Sierra WIreless AC850 git-bisect good 64da82efae0d7b5f7c478021840fd329f76d965d # bad: [37b07e4163f7306aa735a6e250e8d22293e5b8de] memoryless nodes: fixup uses of node_online_map in generic code git-bisect bad 37b07e4163f7306aa735a6e250e8d22293e5b8de # good: [64649a58919e66ec21792dbb6c48cb3da22cbd7f] mm: trim more holes git-bisect good 64649a58919e66ec21792dbb6c48cb3da22cbd7f # good: [fb53b3094888be0cf8ddf052277654268904bdf5] smbfs: convert to new aops git-bisect good fb53b3094888be0cf8ddf052277654268904bdf5 # good: [13808910713a98cc1159291e62cdfec92cc94d05] Memoryless nodes: Generic management of nodemasks for various purposes ............. Please wait, loading kernel... Allocated 00a00000 bytes for kernel @ 00200000 Elf64 kernel loaded... OF stdout device is: /vdevice/vty@30000000 Hypertas detected, assuming LPAR ! command line: panic=1 debug xmon=on memory layout at init: alloc_bottom : 0000000000ac1000 alloc_top : 0000000010000000 alloc_top_hi : 00000000da000000 rmo_top : 0000000010000000 ram_top : 00000000da000000 Looking for displays found display : /pci@800000020000002/pci@2/pci@1/display@0, opening ... done instantiating rtas at 0x000000000f6a1000 ... done 0000000000000000 : boot cpu 0000000000000000 0000000000000002 : starting cpu hw idx 0000000000000002... done 0000000000000004 : starting cpu hw idx 0000000000000004... done 0000000000000006 : starting cpu hw idx 0000000000000006... done copying OF device tree ... Building dt strings... Building dt structure... Device tree strings 0x0000000000cc2000 -> 0x0000000000cc34e4 Device tree struct 0x0000000000cc4000 -> 0x0000000000cd6000 Calling quiesce ... returning from prom_init Partition configured for 8 cpus. Starting Linux PPC64 #2 SMP Tue Jan 15 14:23:02 CET 2008 ----------------------------------------------------- ppc64_pft_size = 0x1c physicalMemorySize = 0xda000000 htab_hash_mask = 0x1fffff ----------------------------------------------------- Linux version 2.6.24-rc7-ppc64 (olaf@lingonberry) (gcc version 4.1.2 20070115 (prerelease) (SUSE Linux)) #2 SMP Tue Jan 15 14:23:02 CET 2008 [boot]0012 Setup Arch EEH: PCI Enhanced I/O Error Handling Enabled PPC64 nvram contains 8192 bytes Zone PFN ranges: DMA 0 -> 892928 Normal 892928 -> 892928 Movable zone start PFN for each node early_node_map[1] active PFN ranges 1: 0 -> 892928 Could not find start_pfn for node 0 [boot]0015 Setup Done Built 2 zonelists in Node order, mobility grouping on. Total pages: 880720 Policy zone: DMA Kernel command line: panic=1 debug xmon=on [boot]0020 XICS Init xics: no ISA interrupt controller [boot]0021 XICS Done PID hash table entries: 4096 (order: 12, 32768 bytes) time_init: decrementer frequency = 275.070000 MHz time_init: processor frequency = 2197.800000 MHz clocksource: timebase mult[e8ab05] shift[22] registered clockevent: decrementer mult[466a] shift[16] cpu[0] Console: colour dummy device 80x25 console handover: boot [udbg-1] -> real [hvc0] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) freeing bootmem node 1 Memory: 3496632k/3571712k available (6188k kernel code, 75080k reserved, 1324k data, 1220k bss, 304k init) Unable to handle kernel paging request for data at address 0x00000040 Faulting instruction address: 0xc000000000437470 cpu 0x0: Vector: 300 (Data Access) at [c00000000075b830] pc: c000000000437470: ._spin_lock+0x20/0x88 lr: c0000000000f78a8: .cache_grow+0x7c/0x338 sp: c00000000075bab0 msr: 8000000000009032 dar: 40 dsisr: 40000000 current = 0xc000000000665a50 paca = 0xc000000000666380 pid = 0, comm = swapper enter ? for help [c00000000075bb30] c0000000000f78a8 .cache_grow+0x7c/0x338 [c00000000075bbf0] c0000000000f7d04 .fallback_alloc+0x1a0/0x1f4 [c00000000075bca0] c0000000000f8544 .kmem_cache_alloc+0xec/0x150 [c00000000075bd40] c0000000000fb1c0 .kmem_cache_create+0x208/0x478 [c00000000075be20] c0000000005e670c .kmem_cache_init+0x218/0x4f4 [c00000000075bee0] c0000000005bf8ec .start_kernel+0x2f8/0x3fc [c00000000075bf90] c000000000008590 .start_here_common+0x60/0xd0 0:mon> -- 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/