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Date: Mon, 31 Aug 2009 14:22:15 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: mroos@...ux.ee
Cc: sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
tj@...nel.org
Subject: Re: boot panic after oops from sysfs_new_dirent
From: Meelis Roos <mroos@...ux.ee>
Date: Mon, 31 Aug 2009 16:51:45 +0300 (EEST)
[ CC:'ing Tejun Heo and lkml as Tejun recently made some changes which
were meant to "fix" things in this area :-) ]
> I powered on my 6-CPU E3000 after a summer pause and tried todays
> 2.6.31-rc8+git on it. It fails - first it spills lots of warnings about
> percpu things, then oopses in sysfs_new_dirent and then panics.
>
> The TOD failure is a known problem waiting for replacement clock board,
> it does not seem to disturb other Linux versions (2.6.30 runs fine).
>
> If it gives no ideas then I might find the time to bisect it but not
> today.
>
> 3,0>ERROR: TEST=NVRAM Devices,SUBTEST=M48T59 (TOD) Init ID=8.1
> 3,0>Component under test: Board 16 Firehose Bus
> 3,0>TODC battery is low bit set
> Detected failed TOD on clock board. Using backup TOD on board in slot 1
> fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II SUNW,UltraSPARC-II
> fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II SUNW,UltraSPARC-II
> fhc ac simm-status environment sram flashprom SUNW,UltraSPARC-II SUNW,UltraSPARC-II
> Probing UPA Slot at 2,0 sbus fhc ac environment flashprom eeprom sbus-speed counter-timer
> Probing UPA Slot at 3,0 sbus counter-timer
> Probing /sbus@2,0 at d,0 SUNW,soc
> Probing /sbus@2,0 at 1,0 SUNW,socal sf ssd sf ssd
> Probing /sbus@2,0 at 2,0 QLGC,isp sd st
> Probing /sbus@3,0 at 3,0 SUNW,hme SUNW,fas sd st
> Probing /sbus@3,0 at 0,0 SUNW,qfe SUNW,qfe SUNW,qfe SUNW,qfe
> 4-slot Sun Enterprise 3000, No Keyboard
> OpenBoot 3.2.29, 3584 MB memory installed, Serial #8631214.
> Copyright 2001 Sun Microsystems, Inc. All rights reserved
> Ethernet address 8:0:20:83:b3:ae, Host ID: 8083b3ae.
>
>
>
> Boot device: disk File and args:
> SILO Version 1.4.13
> boot:
> Linux LinuxOLD test
> hea
> boot: test console=ttyS0
> Allocated 8 Megs of memory at 0x40000000 for kernel
> Uncompressing image...
> Loaded kernel version 2.6.31
>
> [ 0.000000] PROMLIB: Sun IEEE Boot Prom 'OBP 3.2.29 2001/06/18 17:28'
> [ 0.000000] PROMLIB: Root node compatible:
> [ 0.000000] Linux version 2.6.31-rc8 (mroos@...del) (gcc version 4.3.4 (Debian 4.3.4-2) ) #11 SMP Mon Aug 31 14:24:32 EEST 2009
> [ 0.000000] debug: ignoring loglevel setting.
> [ 0.000000] console [earlyprom0] enabled
> [ 0.000000] ARCH: SUN4U
> [ 0.000000] Ethernet address: 08:00:20:83:b3:ae
> [ 0.000000] Kernel: Using 4 locked TLB entries for main kernel image.
> [ 0.000000] Remapping the kernel... done.
> [ 0.000000] OF stdout device is: /central@1f,0/fhc@0,f8800000/zs@0,902000:a
> [ 0.000000] PROM: Built device tree with 70462 bytes of memory.
> [ 0.000000] Top of RAM: 0xdfd14000, Total RAM: 0xdf960000
> [ 0.000000] Memory hole size: 3MB
> [ 0.000000] [0000000200000000-fffff80001400000] page_structs=131072 node=0 entry=0/0
> [ 0.000000] [0000000200000000-fffff80001800000] page_structs=131072 node=0 entry=1/0
> [ 0.000000] [0000000200000000-fffff80001c00000] page_structs=131072 node=0 entry=2/0
> [ 0.000000] [0000000200c00000-fffff80002000000] page_structs=131072 node=0 entry=3/0
> [ 0.000000] [0000000200c00000-fffff80002400000] page_structs=131072 node=0 entry=4/0
> [ 0.000000] [0000000200c00000-fffff80002800000] page_structs=131072 node=0 entry=5/0
> [ 0.000000] [0000000201800000-fffff80002c00000] page_structs=131072 node=0 entry=6/0
> [ 0.000000] [0000000201800000-fffff80003000000] page_structs=131072 node=0 entry=7/0
> [ 0.000000] [0000000201800000-fffff80003400000] page_structs=131072 node=0 entry=8/0
> [ 0.000000] [0000000202400000-fffff80003800000] page_structs=131072 node=0 entry=9/0
> [ 0.000000] [0000000202400000-fffff80003c00000] page_structs=131072 node=0 entry=10/0
> [ 0.000000] [0000000202400000-fffff80004000000] page_structs=131072 node=0 entry=11/0
> [ 0.000000] Zone PFN ranges:
> [ 0.000000] Normal 0x00000000 -> 0x0006fe8a
> [ 0.000000] Movable zone start PFN for each node
> [ 0.000000] early_node_map[3] active PFN ranges
> [ 0.000000] 0: 0x00000000 -> 0x0006fc27
> [ 0.000000] 0: 0x0006fe00 -> 0x0006fe7f
> [ 0.000000] 0: 0x0006fe80 -> 0x0006fe8a
> [ 0.000000] On node 0 totalpages: 457904
> [ 0.000000] Normal zone: 5372 pages used for memmap
> [ 0.000000] Normal zone: 0 pages reserved
> [ 0.000000] Normal zone: 452532 pages, LIFO batch:15
> [ 0.000000] Booting Linux...
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 452532
> [ 0.000000] Kernel command line: root=/dev/sda2 ro debug ignore_loglevel console=ttyS0
> [ 0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
> [ 0.000000] Dentry cache hash table entries: 524288 (order: 9, 4194304 bytes)
> [ 0.000000] Inode-cache hash table entries: 262144 (order: 8, 2097152 bytes)
> [ 0.000000] Memory: 3593384k available (2896k kernel code, 1392k data, 152k init) [fffff80000000000,00000000dfd14000]
> [ 0.000000] SLUB: Genslabs=14, HWalign=32, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
> [ 0.000000] RCU-based detection of stalled CPUs is enabled.
> [ 0.000000] NR_IRQS:255
> [ 0.000000] clocksource: mult[40842] shift[16]
> [ 0.000000] clockevent: mult[3f7ced91] shift[32]
> [ 126.197098] Console: colour dummy device 80x25
> [ 126.250110] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
> [ 126.342739] ... MAX_LOCKDEP_SUBCLASSES: 8
> [ 126.391701] ... MAX_LOCK_DEPTH: 48
> [ 126.441711] ... MAX_LOCKDEP_KEYS: 8191
> [ 126.493801] ... CLASSHASH_SIZE: 4096
> [ 126.545893] ... MAX_LOCKDEP_ENTRIES: 16384
> [ 126.599026] ... MAX_LOCKDEP_CHAINS: 32768
> [ 126.652159] ... CHAINHASH_SIZE: 16384
> [ 126.705292] memory used by lock dependency info: 5695 kB
> [ 126.769885] per task-struct memory footprint: 1920 bytes
> [ 126.984803] Calibrating delay using timer specific routine.. 498.95 BogoMIPS (lpj=2494757)
> [ 127.083344] ------------[ cut here ]------------
> [ 127.138101] WARNING: at mm/percpu.c:651 pcpu_map+0xdc/0x100()
> [ 127.206826] Modules linked in:
> [ 127.243239] Call Trace:
> [ 127.272498] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 127.342282] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 127.409997] [00000000004d493c] pcpu_map+0xdc/0x100
> [ 127.468338] [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0
> [ 127.529806] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 127.593363] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 127.664223] [000000000084d6cc] mmap_init+0x14/0x24
> [ 127.722547] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 127.788179] [0000000000842910] start_kernel+0x2b4/0x338
> [ 127.851748] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 127.915271] [0000000000000000] (null)
> [ 127.960244] ---[ end trace 139ce121c98e96c9 ]---
> [ 128.015292] ------------[ cut here ]------------
> [ 128.070525] WARNING: at mm/vmalloc.c:106 vmap_page_range_noflush+0x228/0x280()
> [ 128.156969] Modules linked in:
> [ 128.193383] Call Trace:
> [ 128.222627] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 128.292429] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 128.360144] [00000000004c3ce8] vmap_page_range_noflush+0x228/0x280
> [ 128.435155] [00000000004c42fc] map_kernel_range_noflush+0x1c/0x40
> [ 128.509122] [00000000004d4908] pcpu_map+0xa8/0x100
> [ 128.567466] [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0
> [ 128.628932] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 128.692485] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 128.763336] [000000000084d6cc] mmap_init+0x14/0x24
> [ 128.821670] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 128.887305] [0000000000842910] start_kernel+0x2b4/0x338
> [ 128.950861] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 129.014396] [0000000000000000] (null)
> [ 129.059195] ---[ end trace 139ce121c98e96ca ]---
> [ 129.114459] ------------[ cut here ]------------
> [ 129.169644] WARNING: at mm/percpu.c:565 pcpu_depopulate_chunk+0x1e4/0x200()
> [ 129.252971] Modules linked in:
> [ 129.289383] Call Trace:
> [ 129.318627] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 129.388429] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 129.456143] [00000000004d4b44] pcpu_depopulate_chunk+0x1e4/0x200
> [ 129.529071] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 129.590535] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 129.654088] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 129.724940] [000000000084d6cc] mmap_init+0x14/0x24
> [ 129.783276] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 129.848909] [0000000000842910] start_kernel+0x2b4/0x338
> [ 129.912466] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 129.976002] [0000000000000000] (null)
> [ 130.020798] ---[ end trace 139ce121c98e96cb ]---
> [ 130.076017] ------------[ cut here ]------------
> [ 130.131247] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 130.210407] Modules linked in:
> [ 130.246822] Call Trace:
> [ 130.276062] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 130.345867] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 130.413579] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 130.482342] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 130.558394] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 130.631322] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 130.692788] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 130.756343] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 130.827190] [000000000084d6cc] mmap_init+0x14/0x24
> [ 130.885529] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 130.951161] [0000000000842910] start_kernel+0x2b4/0x338
> [ 131.014717] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 131.078252] [0000000000000000] (null)
> [ 131.123049] ---[ end trace 139ce121c98e96cc ]---
> [ 131.178268] ------------[ cut here ]------------
> [ 131.233497] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 131.312658] Modules linked in:
> [ 131.349071] Call Trace:
> [ 131.378316] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 131.448117] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 131.515830] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 131.584593] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 131.660647] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 131.733573] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 131.795040] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 131.858591] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 131.929440] [000000000084d6cc] mmap_init+0x14/0x24
> [ 131.987779] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 132.053412] [0000000000842910] start_kernel+0x2b4/0x338
> [ 132.116967] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 132.180504] [0000000000000000] (null)
> [ 132.225299] ---[ end trace 139ce121c98e96cd ]---
> [ 132.280518] ------------[ cut here ]------------
> [ 132.335748] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 132.414909] Modules linked in:
> [ 132.451323] Call Trace:
> [ 132.480566] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 132.550368] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 132.618083] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 132.686844] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 132.762896] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 132.835822] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 132.897291] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 132.960844] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 133.031691] [000000000084d6cc] mmap_init+0x14/0x24
> [ 133.090030] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 133.155662] [0000000000842910] start_kernel+0x2b4/0x338
> [ 133.219219] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 133.282756] [0000000000000000] (null)
> [ 133.327552] ---[ end trace 139ce121c98e96ce ]---
> [ 133.382770] ------------[ cut here ]------------
> [ 133.438001] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 133.517162] Modules linked in:
> [ 133.553574] Call Trace:
> [ 133.582818] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 133.652618] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 133.720334] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 133.789096] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 133.865149] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 133.938075] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 133.999544] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 134.063095] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 134.133943] [000000000084d6cc] mmap_init+0x14/0x24
> [ 134.192282] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 134.257916] [0000000000842910] start_kernel+0x2b4/0x338
> [ 134.321471] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 134.385006] [0000000000000000] (null)
> [ 134.429803] ---[ end trace 139ce121c98e96cf ]---
> [ 134.485020] ------------[ cut here ]------------
> [ 134.540252] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 134.619414] Modules linked in:
> [ 134.655826] Call Trace:
> [ 134.685068] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 134.754872] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 134.822585] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 134.891346] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 134.967399] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 135.040325] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 135.101794] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 135.165347] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 135.236197] [000000000084d6cc] mmap_init+0x14/0x24
> [ 135.294533] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 135.360165] [0000000000842910] start_kernel+0x2b4/0x338
> [ 135.423723] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 135.487257] [0000000000000000] (null)
> [ 135.532055] ---[ end trace 139ce121c98e96d0 ]---
> [ 135.587271] ------------[ cut here ]------------
> [ 135.642504] WARNING: at mm/vmalloc.c:43 vunmap_page_range+0x104/0x160()
> [ 135.721665] Modules linked in:
> [ 135.758077] Call Trace:
> [ 135.787320] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 135.857123] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 135.924836] [00000000004c2ae4] vunmap_page_range+0x104/0x160
> [ 135.993597] [00000000004c2b94] unmap_kernel_range_noflush+0x14/0x40
> [ 136.069651] [00000000004d4aa4] pcpu_depopulate_chunk+0x144/0x200
> [ 136.142576] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 136.204044] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 136.267598] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 136.338446] [000000000084d6cc] mmap_init+0x14/0x24
> [ 136.396784] [000000000084910c] proc_caches_init+0xdc/0xec
> [ 136.462418] [0000000000842910] start_kernel+0x2b4/0x338
> [ 136.525971] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 136.589510] [0000000000000000] (null)
> [ 136.634308] ---[ end trace 139ce121c98e96d1 ]---
> [ 136.691136] ------------[ cut here ]------------
> [ 136.745488] WARNING: at mm/percpu.c:651 pcpu_map+0xdc/0x100()
> [ 136.814227] Modules linked in:
> [ 136.850641] Call Trace:
> [ 136.879883] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 136.949683] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 137.017398] [00000000004d493c] pcpu_map+0xdc/0x100
> [ 137.075741] [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0
> [ 137.137209] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 137.200760] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 137.271601] [000000000084f2b4] files_init+0x68/0x78
> [ 137.330987] [000000000084f450] vfs_caches_init+0xa0/0x150
> [ 137.396620] [0000000000842928] start_kernel+0x2cc/0x338
> [ 137.460178] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 137.523715] [0000000000000000] (null)
> [ 137.568512] ---[ end trace 139ce121c98e96d2 ]---
> [ 137.623820] Mount-cache hash table entries: 512
> [ 137.678029] ------------[ cut here ]------------
> [ 137.733137] WARNING: at mm/percpu.c:651 pcpu_map+0xdc/0x100()
> [ 137.801877] Modules linked in:
> [ 137.838289] Call Trace:
> [ 137.867534] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 137.937335] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 138.005048] [00000000004d493c] pcpu_map+0xdc/0x100
> [ 138.063389] [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0
> [ 138.124859] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 138.188411] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 138.259264] [00000000004b5338] bdi_init+0x38/0xc0
> [ 138.316559] [00000000008508d0] sysfs_inode_init+0x8/0x1c
> [ 138.381145] [0000000000850914] sysfs_init+0x30/0xac
> [ 138.440530] [000000000084f9b0] mnt_init+0x90/0x1a4
> [ 138.498873] [000000000084f458] vfs_caches_init+0xa8/0x150
> [ 138.564509] [0000000000842928] start_kernel+0x2cc/0x338
> [ 138.628065] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 138.691601] [0000000000000000] (null)
> [ 138.736396] ---[ end trace 139ce121c98e96d3 ]---
> [ 138.791615] ------------[ cut here ]------------
> [ 138.846847] WARNING: at mm/vmalloc.c:106 vmap_page_range_noflush+0x228/0x280()
> [ 138.933300] Modules linked in:
> [ 138.969712] Call Trace:
> [ 138.998957] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 139.068758] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 139.136472] [00000000004c3ce8] vmap_page_range_noflush+0x228/0x280
> [ 139.211484] [00000000004c42fc] map_kernel_range_noflush+0x1c/0x40
> [ 139.285451] [00000000004d4908] pcpu_map+0xa8/0x100
> [ 139.343795] [00000000004d59a4] pcpu_alloc+0x3e4/0x4e0
> [ 139.405263] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 139.468814] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 139.539659] [00000000004b5338] bdi_init+0x38/0xc0
> [ 139.596959] [00000000008508d0] sysfs_inode_init+0x8/0x1c
> [ 139.661551] [0000000000850914] sysfs_init+0x30/0xac
> [ 139.720934] [000000000084f9b0] mnt_init+0x90/0x1a4
> [ 139.779276] [000000000084f458] vfs_caches_init+0xa8/0x150
> [ 139.844911] [0000000000842928] start_kernel+0x2cc/0x338
> [ 139.908469] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 139.972005] [0000000000000000] (null)
> [ 140.016800] ---[ end trace 139ce121c98e96d4 ]---
> [ 140.072067] ------------[ cut here ]------------
> [ 140.127250] WARNING: at mm/percpu.c:565 pcpu_depopulate_chunk+0x1e4/0x200()
> [ 140.210578] Modules linked in:
> [ 140.246991] Call Trace:
> [ 140.276235] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 140.346036] [000000000045ebdc] warn_slowpath_null+0x1c/0x40
> [ 140.413750] [00000000004d4b44] pcpu_depopulate_chunk+0x1e4/0x200
> [ 140.486675] [00000000004d5970] pcpu_alloc+0x3b0/0x4e0
> [ 140.548143] [00000000004d5af8] __alloc_percpu+0x18/0x40
> [ 140.611697] [00000000005b112c] __percpu_counter_init+0x4c/0xc0
> [ 140.682543] [00000000004b5338] bdi_init+0x38/0xc0
> [ 140.739842] [00000000008508d0] sysfs_inode_init+0x8/0x1c
> [ 140.804433] [0000000000850914] sysfs_init+0x30/0xac
> [ 140.863815] [000000000084f9b0] mnt_init+0x90/0x1a4
> [ 140.922159] [000000000084f458] vfs_caches_init+0xa8/0x150
> [ 140.987795] [0000000000842928] start_kernel+0x2cc/0x338
> [ 141.051351] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 141.114887] [0000000000000000] (null)
> [ 141.159683] ---[ end trace 139ce121c98e96d5 ]---
> [ 141.216152] ------------[ cut here ]------------
> [ 141.270459] WARNING: at lib/kobject.c:595 kobject_put+0x40/0x60()
> [ 141.343360] kobject: '<NULL>' (fffff800df022ad0): is not initialized, yet kobject_put() is being called.
> [ 141.456910] Modules linked in:
> [ 141.493327] Call Trace:
> [ 141.522571] [000000000045eb70] warn_slowpath_common+0x50/0xa0
> [ 141.592368] [000000000045ec34] warn_slowpath_fmt+0x34/0x60
> [ 141.659045] [0000000000598d60] kobject_put+0x40/0x60
> [ 141.719469] [00000000004d3ba0] kmem_cache_destroy+0x180/0x1e0
> [ 141.789270] [0000000000850940] sysfs_init+0x5c/0xac
> [ 141.848650] [000000000084f9b0] mnt_init+0x90/0x1a4
> [ 141.906994] [000000000084f458] vfs_caches_init+0xa8/0x150
> [ 141.972628] [0000000000842928] start_kernel+0x2cc/0x338
> [ 142.036187] [00000000006c5004] tlb_fixup_done+0xa0/0xbc
> [ 142.099721] [0000000000000000] (null)
> [ 142.144518] ---[ end trace 139ce121c98e96d6 ]---
> [ 142.199742] mnt_init: sysfs_init error: -12
> [ 142.249979] Unable to handle kernel NULL pointer dereference
> [ 142.317414] tsk->{mm,active_mm}->context = 0000000000000000
> [ 142.384089] tsk->{mm,active_mm}->pgd = fffff8000086bb74
> [ 142.446597] \|/ ____ \|/
> [ 142.446613] "@'/ .. \`@"
> [ 142.446627] /_| \__/ |_\
> [ 142.446640] \__U_/
> [ 142.622671] swapper(0): Oops [#1]
> [ 142.662298] TSTATE: 0000000080e01603 TPC: 00000000004d2198 TNPC: 00000000004d219c Y: 00000000 Tainted: G W
> [ 142.789371] TPC: <kmem_cache_alloc+0x58/0x120>
> [ 142.842497] g0: 0000000000000000 g1: 0000000000000140 g2: 0000000000000000 g3: 00000000007d6010
> [ 142.946679] g4: 00000000007d6010 g5: 0000000100f9c000 g6: 0000000000834000 g7: 0000000000667300
> [ 143.050861] o0: 000000000078d9f0 o1: 00000000000006a1 o2: 0000000000000000 o3: 0000000000000008
> [ 143.155046] o4: fffff800df056008 o5: 0000000066730000 sp: 0000000000836e81 ret_pc: 00000000004d2184
> [ 143.263397] RPC: <kmem_cache_alloc+0x44/0x120>
> [ 143.316526] l0: 0000000000000000 l1: 00000000000080d0 l2: 00000000000012d0 l3: 000000000053c1b0
> [ 143.420710] l4: 0000000000000000 l5: 0000000000000000 l6: 00000000000212d0 l7: 0000000000000010
> [ 143.524891] i0: 0000000000000000 i1: 00000000000080d0 i2: 0000000000000001 i3: 0000000000000001
> [ 143.629075] i4: 0000000000000000 i5: 0000000000000002 i6: 0000000000836f41 i7: 000000000053c1b0
> [ 143.733265] I7: <sysfs_new_dirent+0x30/0x120>
> [ 143.785344] Disabling lock debugging due to kernel taint
> [ 143.848907] Caller[000000000053c1b0]: sysfs_new_dirent+0x30/0x120
> [ 143.921834] Caller[000000000053c7a4]: create_dir+0x24/0xc0
> [ 143.987469] Caller[000000000053c870]: sysfs_create_dir+0x30/0x80
> [ 144.059361] Caller[00000000005990e8]: kobject_add_internal+0xc8/0x200
> [ 144.136454] Caller[0000000000599354]: kobject_add_varg+0x34/0x60
> [ 144.208341] Caller[0000000000599424]: kobject_add+0x44/0x80
> [ 144.275018] Caller[0000000000599490]: kobject_create_and_add+0x30/0x80
> [ 144.353148] Caller[000000000084f9cc]: mnt_init+0xac/0x1a4
> [ 144.417742] Caller[000000000084f458]: vfs_caches_init+0xa8/0x150
> [ 144.489628] Caller[0000000000842928]: start_kernel+0x2cc/0x338
> [ 144.559437] Caller[00000000006c5004]: tlb_fixup_done+0xa0/0xbc
> [ 144.629223] Caller[0000000000000000]: (null)
> [ 144.680270] Instruction DUMP: c211a03e 82006022 83287003 <d85d0001> f05b0000 02c60026 e4032018 c2032014 83287003
> [ 144.809463] Kernel panic - not syncing: Attempted to kill the idle task!
> [ 144.889675] Call Trace:
> [ 144.918870] [00000000006d3958] panic+0x5c/0x1a0
> [ 144.974082] [0000000000462d4c] do_exit+0x62c/0x6a0
> [ 145.032424] [0000000000427e54] die_if_kernel+0xf4/0x300
> [ 145.095991] [0000000000447bec] unhandled_fault+0x6c/0xc0
> [ 145.160570] [0000000000447d20] do_sparc64_fault+0xe0/0x680
> [ 145.227247] [0000000000407b04] sparc64_realfault_common+0x10/0x20
> [ 145.301210] [00000000004d2198] kmem_cache_alloc+0x58/0x120
> [ 145.367886] [000000000053c1b0] sysfs_new_dirent+0x30/0x120
> [ 145.434564] [000000000053c7a4] create_dir+0x24/0xc0
> [ 145.493947] [000000000053c870] sysfs_create_dir+0x30/0x80
> [ 145.559589] [00000000005990e8] kobject_add_internal+0xc8/0x200
> [ 145.630432] [0000000000599354] kobject_add_varg+0x34/0x60
> [ 145.696067] [0000000000599424] kobject_add+0x44/0x80
> [ 145.756495] [0000000000599490] kobject_create_and_add+0x30/0x80
> [ 145.828373] [000000000084f9cc] mnt_init+0xac/0x1a4
> [ 145.886717] [000000000084f458] vfs_caches_init+0xa8/0x150
> [ 145.952344] Press Stop-A (L1-A) to return to the boot prom
>
> --
> Meelis Roos (mroos@...ux.ee)
> --
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