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Date: Wed, 20 Apr 2011 11:32:58 -0500 From: James Bottomley <James.Bottomley@...senPartnership.com> To: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> Cc: Pekka Enberg <penberg@...nel.org>, Christoph Lameter <cl@...ux.com>, Michal Hocko <mhocko@...e.cz>, Andrew Morton <akpm@...ux-foundation.org>, Hugh Dickins <hughd@...gle.com>, linux-mm@...ck.org, LKML <linux-kernel@...r.kernel.org>, linux-parisc@...r.kernel.org, David Rientjes <rientjes@...gle.com>, Ingo Molnar <mingo@...e.hu>, x86 maintainers <x86@...nel.org> Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards On Wed, 2011-04-20 at 17:40 +0900, KOSAKI Motohiro wrote: > > > btw, x86 don't have an issue. Probably it's a reason why this issue was neglected > > > long time. > > > > > > arch/x86/Kconfig > > > ------------------------------------- > > > config ARCH_DISCONTIGMEM_ENABLE > > > def_bool y > > > depends on NUMA && X86_32 > > > > That part makes me think the best option is to make parisc do > > CONFIG_NUMA as well regardless of the historical intent was. > > > > Pekka > > This? I'm afraid it doesn't boot (it's another slub crash): [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.39-rc3+ (jejb@ion) (gcc version 4.2.4 (Debian 4.2.4-6)) #30 SMP Wed Apr 20 08:52:23 PDT 2011 [ 0.000000] unwind_init: start = 0x4057a000, end = 0x405b0e80, entries = 14056 [ 0.000000] WARNING: Out of order unwind entry! 000000004057b470 and 000000004057b480 [ 0.000000] WARNING: Out of order unwind entry! 000000004057b480 and 000000004057b490 [ 0.000000] WARNING: Out of order unwind entry! 000000004057c160 and 000000004057c170 [ 0.000000] WARNING: Out of order unwind entry! 000000004057c170 and 000000004057c180 [ 0.000000] FP[0] enabled: Rev 1 Model 20 [ 0.000000] The 64-bit Kernel has started... [ 0.000000] bootconsole [ttyB0] enabled [ 0.000000] Initialized PDC Console for debugging. [ 0.000000] Determining PDC firmware type: 64 bit PAT. [ 0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af710 100000f0 00000008 000000b2 000000b2 [ 0.000000] vers 00000301 [ 0.000000] CPUID vers 20 rev 4 (0x00000284) [ 0.000000] capabilities 0x35 [ 0.000000] model 9000/800/rp3440 [ 0.000000] parisc_cache_init: Only equivalent aliasing supported! [ 0.000000] Memory Ranges: [ 0.000000] 0) Start 0x0000000000000000 End 0x000000003fffffff Size 1024 MB [ 0.000000] 1) Start 0x0000004040000000 End 0x000000407fdfffff Size 1022 MB [ 0.000000] Total Memory: 2046 MB [ 0.000000] initrd: 7f390000-7ffedaa1 [ 0.000000] initrd: reserving 3f390000-3ffedaa1 (mem_max 7fe00000) [ 0.000000] PERCPU: Embedded 10 pages/cpu @00000000418f5000 s12288 r8192 d20480 u40960 [ 0.000000] SMP: bootstrap CPU ID is 0 [ 0.000000] Built 2 zonelists in Node order, mobility grouping on. Total pages: 258560 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 2042228k/2095104k available (3849k kernel code, 52876k reserved, 1661k data, 324k init) [ 0.000000] virtual kernel memory layout: [ 0.000000] vmalloc : 0x0000000000008000 - 0x000000003f000000 (1007 MB) [ 0.000000] memory : 0x0000000040000000 - 0x00000040bfe00000 (264190 MB) [ 0.000000] .init : 0x000000004077c000 - 0x00000000407cd000 ( 324 kB) [ 0.000000] .data : 0x00000000404c2518 - 0x0000000040661920 (1661 kB) [ 0.000000] .text : 0x0000000040100000 - 0x00000000404c2518 (3849 kB) [ 0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 32 [ 0.000000] RCU-based detection of stalled CPUs is disabled. [ 0.000000] NR_IRQS:128 [ 0.000000] Console: colour dummy device 160x64 [ 0.000000] numa_policy_init: interleaving failed [ 0.000000] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736) [ 0.048000] pid_max: default: 32768 minimum: 301 [ 0.048000] Security Framework initialized [ 0.048000] SELinux: Disabled at boot. [ 0.060000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.072000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.076000] Mount-cache hash table entries: 256 [ 0.076000] Initializing cgroup subsys ns [ 0.076000] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup. [ 0.080000] Initializing cgroup subsys cpuacct [ 0.092000] Initializing cgroup subsys devices [ 0.092000] Initializing cgroup subsys freezer [ 0.100000] Initializing cgroup subsys net_cls [ 0.100000] Initializing cgroup subsys blkio [ 0.200000] Backtrace: [ 0.200000] [<000000004021c938>] add_partial+0x28/0x98 [ 0.200000] [<000000004021faa0>] __slab_free+0x1d0/0x1d8 [ 0.200000] [<000000004021fd04>] kmem_cache_free+0xc4/0x128 [ 0.200000] [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0 [ 0.200000] [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238 [ 0.200000] [<00000000402a974c>] create_dir+0x5c/0x168 [ 0.200000] [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128 [ 0.200000] [<000000004033d6c4>] kobject_add_internal+0x114/0x258 [ 0.200000] [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0 [ 0.200000] [<000000004033df20>] kobject_add+0x50/0x90 [ 0.200000] [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8 [ 0.200000] [<00000000407862a0>] cgroup_init+0x138/0x1f0 [ 0.200000] [<000000004077ce50>] start_kernel+0x5a0/0x840 [ 0.200000] [<000000004011fa3c>] start_parisc+0xa4/0xb8 [ 0.200000] [<00000000404bb034>] packet_ioctl+0x16c/0x208 [ 0.200000] [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20 [ 0.200000] [ 0.200000] [ 0.200000] Kernel Fault: Code=26 regs=00000000405bca80 (Addr=0000000000000000) [ 0.200000] [ 0.200000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 0.200000] PSW: 00001000000001001111001000001110 Not tainted [ 0.200000] r00-03 000000ff0804f20e 0000000040778360 000000004021c938 0000000000000000 [ 0.200000] r04-07 0000000040754b60 0000000000000001 00000000418b1440 000000007ec01280 [ 0.200000] r08-11 0000000000000000 00000000405f7380 00000000000003c0 000000007fffffff [ 0.200000] r12-15 00000000405bc7d8 00000000405f7398 00000000405bc6e8 00000000000041ed [ 0.200000] r16-19 00000000f0d00b0c 0000000000000000 0000000000000000 0000000000000000 [ 0.200000] r20-23 000000000800000e 0000000000000001 00000000f0000000 000000004033bf9c [ 0.200000] r24-27 0000000000000001 00000000418b1440 0000000000000000 0000000040754b60 [ 0.200000] r28-31 000000007ec08000 00000000405bca50 00000000405bca80 000000000000001d [ 0.200000] sr00-03 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 0.200000] sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 0.200000] [ 0.200000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011c0f0 000000004011c0f4 [ 0.200000] IIR: 0f4015dc ISR: 0000000000000000 IOR: 0000000000000000 [ 0.200000] CPU: 0 CR30: 00000000405bc000 CR31: fffffff0f0e098e0 [ 0.200000] ORIG_R28: 0000000000000100 [ 0.200000] IAOQ[0]: _raw_spin_lock+0x0/0x20 [ 0.200000] IAOQ[1]: _raw_spin_lock+0x4/0x20 [ 0.200000] RP(r2): add_partial+0x28/0x98 [ 0.200000] Backtrace: [ 0.200000] [<000000004021c938>] add_partial+0x28/0x98 [ 0.200000] [<000000004021faa0>] __slab_free+0x1d0/0x1d8 [ 0.200000] [<000000004021fd04>] kmem_cache_free+0xc4/0x128 [ 0.200000] [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0 [ 0.200000] [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238 [ 0.200000] [<00000000402a974c>] create_dir+0x5c/0x168 [ 0.200000] [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128 [ 0.200000] [<000000004033d6c4>] kobject_add_internal+0x114/0x258 [ 0.200000] [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0 [ 0.200000] [<000000004033df20>] kobject_add+0x50/0x90 [ 0.200000] [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8 [ 0.200000] [<00000000407862a0>] cgroup_init+0x138/0x1f0 [ 0.200000] [<000000004077ce50>] start_kernel+0x5a0/0x840 [ 0.200000] [<000000004011fa3c>] start_parisc+0xa4/0xb8 [ 0.200000] [<00000000404bb034>] packet_ioctl+0x16c/0x208 [ 0.200000] [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20 [ 0.200000] [ 0.200000] Kernel panic - not syncing: Kernel Fault [ 0.200000] Backtrace: [ 0.200000] [<000000004011fec4>] show_stack+0x14/0x20 [ 0.200000] [<000000004011fee8>] dump_stack+0x18/0x28 [ 0.200000] [<000000004015a9a4>] panic+0xd4/0x368 [ 0.200000] [<0000000040120564>] parisc_terminate+0x14c/0x170 [ 0.200000] [<0000000040120adc>] handle_interruption+0x2ac/0x8f8 [ 0.200000] [<000000004011c0f0>] _raw_spin_lock+0x0/0x20 [ 0.200000] [ 0.200000] Rebooting in 5 seconds.. James -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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