Re: kernel oops

From: Len Brown
Date: Wed Feb 06 2008 - 12:56:24 EST

On Tuesday 05 February 2008 07:57, Andrej Hocevar wrote:
> this has occured a couple of times. i was editing a unicode file with
> vim in the console. after a reboot, i immediately tried to do just that
> again and it crashed. it might have occured upon trying to select some
> text with the mouse (gpm) or trying to delete characters from the file.
>

This must be kmem pool corruption -- for it is springing up all over
the place, including in calls to kmem_cache_alloc.
One of the failures is somebody reading your battery status via ACPI.

Have you tried
CONFIG_DEBUG_SLAB=y
or
the equivalent SLUB version if you're running with CONFIG_SLUB?

-Len

> 1)
>
> =======================================================================
>
> Linux stoa 2.6.23.13newhome #3 Wed Jan 30 19:39:38 CET 2008 i686
> GNU/Linux
>
> Gnu C 4.1.2
> Gnu make 3.81
> binutils Binutils
> util-linux 2.13.1
> mount 2.13
> module-init-tools 3.3-pre2
> e2fsprogs 1.40.3
> pcmciautils 014
> PPP 2.4.4
> Linux C Library 2.7
> Dynamic linker (ldd) 2.7
> Procps 3.2.7
> Net-tools 1.60
> Console-tools 0.2.3
> Sh-utils 5.97
> udev 114
> wireless-tools 29
> Modules Loaded nf_conntrack_ipv4 xt_state xt_tcpudp
> iptable_filter ip_tables x_tables nf_nat_ftp nf_nat nf_conntrack_ftp
> nf_conntrack nfnetlink af_packet ppdev lp cpufreq_stats fuse sr_mod sbp2
> snd_intel8x0 snd_ac97_codec irda ac97_bus snd_pcm_oss snd_mixer_oss
> crc_ccitt parport_pc parport snd_pcm video output
> rng_core snd_timer snd_page_alloc rtc 8250_pci 8250 serial_core evdev
> sd_mod ide_cd cdrom ide_disk usb_storage usbhid scsi_mod ohci1394 piix
> ieee1394 ide_core ehci_hcd uhci_hcd usbcore unix
>
> =======================================================================
>
> 2)
>
> =======================================================================
>
> Feb 5 13:25:37 stoa kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000014
> Feb 5 13:25:37 stoa kernel: printing eip:
> Feb 5 13:25:37 stoa kernel: c01ebbca
> Feb 5 13:25:37 stoa kernel: *pde = 00000000
> Feb 5 13:25:37 stoa kernel: Oops: 0000 [#1]
> Feb 5 13:25:37 stoa kernel: Modules linked in: ppdev lp cpufreq_stats fuse sr_mod sbp2 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm sd_mod 8250_pci irda 8250 serial_core rtc parport_pc parport crc_ccitt rng_core snd_timer snd_page_alloc video output evdev usb_storage scsi_mod usbhid ide_cd cdrom ide_disk ohci1394 ehci_hcd uhci_hcd piix ide_core ieee1394 usbcore unix
> Feb 5 13:25:37 stoa kernel: CPU: 0
> Feb 5 13:25:37 stoa kernel: EIP: 0060:[<c01ebbca>] Not tainted VLI
> Feb 5 13:25:37 stoa kernel: EFLAGS: 00010202 (2.6.23.13newhome #3)
> Feb 5 13:25:37 stoa kernel: EIP is at acpi_ps_has_completed_scope+0xb/0x1d
> Feb 5 13:25:37 stoa kernel: eax: 00000000 ebx: 00001001 ecx: 00000001 edx: 00000000
> Feb 5 13:25:37 stoa kernel: esi: ed1e9800 edi: 00000000 ebp: ed1e9824 esp: ea647e04
> Feb 5 13:25:37 stoa kernel: ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
> Feb 5 13:25:37 stoa kernel: Process hald (pid: 5453, ti=ea646000 task=ea514540 task.ti=ea646000)
> Feb 5 13:25:37 stoa kernel: Stack: c01eb38f c01f0aef dfc49190 ed1e9400 c01ea3a7 c03fe1f0 00000287 c01f0a27
> Feb 5 13:25:37 stoa kernel: ed1e9400 ed1e9800 c15a3d20 00000287 00000000 00000000 ed1e9400 ed1e9800
> Feb 5 13:25:37 stoa kernel: 00000000 dfc27090 c01ead50 dfc483a8 ed1e9824 dfc27030 c01deba1 00000000
> Feb 5 13:25:37 stoa kernel: Call Trace:
> Feb 5 13:25:37 stoa kernel: [<c01eb38f>] acpi_ps_parse_loop+0x3e/0x737
> Feb 5 13:25:37 stoa kernel: [<c01f0aef>] acpi_ut_acquire_mutex+0x31/0x7a
> Feb 5 13:25:37 stoa kernel: [<c01ea3a7>] acpi_ns_get_next_node+0x13/0x34
> Feb 5 13:25:37 stoa kernel: [<c01f0a27>] acpi_ut_release_mutex+0x5b/0x63
> Feb 5 13:25:37 stoa kernel: [<c01ead50>] acpi_ps_parse_aml+0x60/0x237
> Feb 5 13:25:37 stoa kernel: [<c01deba1>] acpi_ds_init_aml_walk+0xb4/0xfe
> Feb 5 13:25:37 stoa kernel: [<c01ebf7c>] acpi_ps_execute_method+0x11b/0x1bb
> Feb 5 13:25:37 stoa kernel: [<c01e9315>] acpi_ns_evaluate+0x99/0xf0
> Feb 5 13:25:37 stoa kernel: [<c01e8f81>] acpi_evaluate_object+0x124/0x1c7
> Feb 5 13:25:37 stoa kernel: [<c01f4848>] acpi_ac_seq_show+0x0/0x50
> Feb 5 13:25:37 stoa kernel: [<c01db1fc>] acpi_evaluate_integer+0x7b/0xae
> Feb 5 13:25:37 stoa kernel: [<c01f467e>] acpi_ac_get_state+0x26/0x61
> Feb 5 13:25:37 stoa kernel: [<c0146bde>] mmap_region+0x312/0x3ce
> Feb 5 13:25:37 stoa kernel: [<c01f485a>] acpi_ac_seq_show+0x12/0x50
> Feb 5 13:25:37 stoa kernel: [<c0166d9a>] seq_read+0xec/0x276
> Feb 5 13:25:37 stoa kernel: [<c0166cae>] seq_read+0x0/0x276
> Feb 5 13:25:37 stoa kernel: [<c0178d15>] proc_reg_read+0x35/0x46
> Feb 5 13:25:37 stoa kernel: [<c0178ce0>] proc_reg_read+0x0/0x46
> Feb 5 13:25:37 stoa kernel: [<c0153b51>] vfs_read+0x88/0x10a
> Feb 5 13:25:37 stoa kernel: [<c0153e71>] sys_read+0x41/0x67
> Feb 5 13:25:37 stoa kernel: [<c0103bee>] syscall_call+0x7/0xb
> Feb 5 13:25:37 stoa kernel: =======================
> Feb 5 13:25:37 stoa kernel: Code: c0 25 2e c0 c1 e0 04 05 c0 1c 2e c0 c3 b8 70 23 2e c0 c3 b8 38 df 32 c0 c3 8b 40 1c 8b 40 10 c3 8b 50 1c b9 01 00 00 00 8b 40 04 <3b> 42 14 73 09 31 c9 83 7a 0c 00 0f 94 c1 0f b6 c1 c3 85 c0 53
>
>
>
>
> Feb 5 13:32:44 stoa kernel: BUG: unable to handle kernel paging request at virtual address 01000044
> Feb 5 13:32:44 stoa kernel: printing eip:
> Feb 5 13:32:44 stoa kernel: c01501ef
> Feb 5 13:32:44 stoa kernel: *pde = 00000000
> Feb 5 13:32:44 stoa kernel: Oops: 0000 [#1]
> Feb 5 13:32:44 stoa kernel: Modules linked in: ppdev lp cpufreq_stats fuse sr_mod sbp2 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss video sd_mod output rng_core irda parport_pc parport 8250_pci 8250 serial_core snd_pcm crc_ccitt snd_timer snd_page_alloc evdev rtc ide_disk ide_cd cdrom usb_storage usbhid scsi_mod ohci1394 piix ieee1394 ide_core ehci_hcd uhci_hcd usbcore unix
> Feb 5 13:32:44 stoa kernel: CPU: 0
> Feb 5 13:32:44 stoa kernel: EIP: 0060:[<c01501ef>] Not tainted VLI
> Feb 5 13:32:44 stoa kernel: EFLAGS: 00010006 (2.6.23.13newhome #3)
> Feb 5 13:32:44 stoa kernel: EIP is at kmem_cache_alloc+0x40/0x7c
> Feb 5 13:32:44 stoa kernel: eax: 00000000 ebx: 01000044 ecx: c0385c70 edx: c15c3a40
> Feb 5 13:32:44 stoa kernel: esi: c0385c70 edi: 00000286 ebp: 00011200 esp: dfc5fd90
> Feb 5 13:32:44 stoa kernel: ds: 007b es: 007b fs: 0000 gs: 0000 ss: 0068
> Feb 5 13:32:44 stoa kernel: Process pdflush (pid: 189, ti=dfc5e000 task=dfc08540 task.ti=dfc5e000)
> Feb 5 13:32:44 stoa kernel: Stack: c013bc77 eeb764d0 00000010 dfff51e0 00011210 ef070cc0 c013bc77 dfc8c6f0
> Feb 5 13:32:44 stoa kernel: 00000017 ee9a9a68 00000008 ee9a9b90 00000000 00000000 dfff50c0 ef070cc0
> Feb 5 13:32:44 stoa kernel: c016e566 00000010 00000000 dfd00738 c15c8260 00000001 00000001 c016e5c9
> Feb 5 13:32:44 stoa kernel: Call Trace:
> Feb 5 13:32:44 stoa kernel: [<c013bc77>] mempool_alloc+0x28/0x9f
> Feb 5 13:32:44 stoa kernel: [<c013bc77>] mempool_alloc+0x28/0x9f
> Feb 5 13:32:44 stoa kernel: [<c016e566>] bio_alloc_bioset+0x9b/0xf3
> Feb 5 13:32:44 stoa kernel: [<c016e5c9>] bio_alloc+0xb/0x17
> Feb 5 13:32:44 stoa kernel: [<c016b9d0>] submit_bh+0x5e/0xd4
> Feb 5 13:32:44 stoa kernel: [<c016ccda>] __block_write_full_page+0x1ab/0x27e
> Feb 5 13:32:44 stoa kernel: [<c0104597>] common_interrupt+0x23/0x28
> Feb 5 13:32:44 stoa kernel: [<c017000f>] blkdev_get_block+0x0/0x33
> Feb 5 13:32:44 stoa kernel: [<c016ce7f>] block_write_full_page+0xd2/0xda
> Feb 5 13:32:44 stoa kernel: [<c017000f>] blkdev_get_block+0x0/0x33
> Feb 5 13:32:44 stoa kernel: [<c013db98>] __writepage+0x8/0x1f
> Feb 5 13:32:44 stoa kernel: [<c013e019>] write_cache_pages+0x165/0x280
> Feb 5 13:32:44 stoa kernel: [<c013db90>] __writepage+0x0/0x1f
> Feb 5 13:32:44 stoa kernel: [<c013e134>] generic_writepages+0x0/0x26
> Feb 5 13:32:44 stoa kernel: [<c013e153>] generic_writepages+0x1f/0x26
> Feb 5 13:32:44 stoa kernel: [<c013e17a>] do_writepages+0x20/0x30
> Feb 5 13:32:44 stoa kernel: [<c0168777>] __writeback_single_inode+0x16e/0x2d4
> Feb 5 13:32:44 stoa kernel: [<c02cc29f>] schedule_timeout+0x77/0x8b
> Feb 5 13:32:44 stoa kernel: [<c01156bb>] update_curr+0x10b/0x135
> Feb 5 13:32:44 stoa kernel: [<c0168b7f>] sync_sb_inodes+0x154/0x1e5
> Feb 5 13:32:44 stoa kernel: [<c0168d38>] writeback_inodes+0x42/0x69
> Feb 5 13:32:44 stoa kernel: [<c013e7ea>] pdflush+0x0/0x15e
> Feb 5 13:32:44 stoa kernel: [<c013e51c>] wb_kupdate+0x6e/0xd2
> Feb 5 13:32:44 stoa kernel: [<c013e8c4>] pdflush+0xda/0x15e
> Feb 5 13:32:44 stoa kernel: [<c02cbcca>] __sched_text_start+0x212/0x26f
> Feb 5 13:32:44 stoa kernel: [<c013e4ae>] wb_kupdate+0x0/0xd2
> Feb 5 13:32:44 stoa kernel: [<c01274d3>] kthread+0x36/0x5b
> Feb 5 13:32:44 stoa kernel: [<c012749d>] kthread+0x0/0x5b
> Feb 5 13:32:44 stoa kernel: [<c0104747>] kernel_thread_helper+0x7/0x10
> Feb 5 13:32:44 stoa kernel: =======================
> Feb 5 13:32:44 stoa kernel: Code: 00 00 00 85 d2 74 06 83 7a 0c 00 75 17 89 54 24 04 83 c9 ff 89 ea 89 04 24 89 f0 e8 44 fb ff ff 89 c3 eb 0d 8b 5a 0c 0f b7 42 0a <8b> 04 83 89 42 0c 57 9d 89 e8 25 00 80 00 00 66 85 c0 74 1f 85
> Feb 5 13:32:44 stoa kernel: EIP: [<c01501ef>] kmem_cache_alloc+0x40/0x7c SS:ESP 0068:dfc5fd90
>
>
>
>
> Feb 5 13:34:22 stoa kernel: BUG: unable to handle kernel paging request at virtual address 3175b800
> Feb 5 13:34:22 stoa kernel: printing eip:
> Feb 5 13:34:22 stoa kernel: c0150a77
> Feb 5 13:34:22 stoa kernel: *pde = 00000000
> Feb 5 13:34:22 stoa kernel: Oops: 0000 [#2]
> Feb 5 13:34:22 stoa kernel: Modules linked in: ppdev lp cpufreq_stats fuse sr_mod sbp2 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss video sd_mod output rng_core irda parport_pc parport 8250_pci 8250 serial_core snd_pcm crc_ccitt snd_timer snd_page_alloc evdev rtc ide_disk ide_cd cdrom usb_storage usbhid scsi_mod ohci1394 piix ieee1394 ide_core ehci_hcd uhci_hcd usbcore unix
> Feb 5 13:34:22 stoa kernel: CPU: 0
> Feb 5 13:34:22 stoa kernel: EIP: 0060:[<c0150a77>] Tainted: G D VLI
> Feb 5 13:34:22 stoa kernel: EFLAGS: 00010006 (2.6.23.13newhome #3)
> Feb 5 13:34:22 stoa kernel: EIP is at __kmalloc_track_caller+0x4a/0x88
> Feb 5 13:34:22 stoa kernel: eax: 00000000 ebx: 3175b800 ecx: c0385be4 edx: c15c62e0
> Feb 5 13:34:22 stoa kernel: esi: c0385be4 edi: 00000286 ebp: 000000d0 esp: e8f8bec0
> Feb 5 13:34:22 stoa kernel: ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
> Feb 5 13:34:22 stoa kernel: Process modprobe (pid: 6174, ti=e8f8a000 task=ee68aa80 task.ti=e8f8a000)
> Feb 5 13:34:22 stoa kernel: Stack: 00000003 c01319bd 000000d0 ee7bc800 ee7bca68 00000006 c0141624 c0131a40
> Feb 5 13:34:22 stoa kernel: f3a3ace6 ee7bc834 ee7bc800 ee7bca68 f3ab2c00 c0132c24 00000000 00000000
> Feb 5 13:34:22 stoa kernel: e8b705f4 e8b705f0 00003cb4 00000438 c0146bde 00000000 00000000 00000000
> Feb 5 13:34:22 stoa kernel: Call Trace:
> Feb 5 13:34:22 stoa kernel: [<c01319bd>] module_add_modinfo_attrs+0x58/0x7a
> Feb 5 13:34:22 stoa kernel: [<c0141624>] kstrdup+0x2f/0x50
> Feb 5 13:34:22 stoa kernel: [<c0131a40>] mod_sysfs_setup+0x61/0x8b
> Feb 5 13:34:22 stoa kernel: [<c0132c24>] sys_init_module+0x105b/0x12b1
> Feb 5 13:34:22 stoa kernel: [<c0146bde>] mmap_region+0x312/0x3ce
> Feb 5 13:34:22 stoa kernel: [<c0261a5f>] synchronize_net+0x0/0xa
> Feb 5 13:34:22 stoa kernel: [<c0103bee>] syscall_call+0x7/0xb
> Feb 5 13:34:22 stoa kernel: [<c012007b>] do_timer+0x65/0xa5
> Feb 5 13:34:22 stoa kernel: =======================
> Feb 5 13:34:22 stoa kernel: Code: 00 00 00 85 d2 74 06 83 7a 0c 00 75 17 89 54 24 04 83 c9 ff 89 ea 89 f0 89 1c 24 e8 bc f2 ff ff 89 c3 eb 0d 8b 5a 0c 0f b7 42 0a <8b> 04 83 89 42 0c 57 9d 89 e8 25 00 80 00 00 66 85 c0 74 1f 85
> Feb 5 13:34:22 stoa kernel: EIP: [<c0150a77>] __kmalloc_track_caller+0x4a/0x88 SS:ESP 0068:e8f8bec0
>
>
>
>
>
> Feb 5 13:34:22 stoa kernel: BUG: unable to handle kernel paging request at virtual address 3175b800
> Feb 5 13:34:22 stoa kernel: printing eip:
> Feb 5 13:34:22 stoa kernel: c0150b01
> Feb 5 13:34:22 stoa kernel: *pde = 00000000
> Feb 5 13:34:22 stoa kernel: Oops: 0000 [#3]
> Feb 5 13:34:22 stoa kernel: Modules linked in: ppdev lp cpufreq_stats fuse sr_mod sbp2 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss video sd_mod output rng_core irda parport_pc parport 8250_pci 8250 serial_core snd_pcm crc_ccitt snd_timer snd_page_alloc evdev rtc ide_disk ide_cd cdrom usb_storage usbhid scsi_mod ohci1394 piix ieee1394 ide_core ehci_hcd uhci_hcd usbcore unix
> Feb 5 13:34:22 stoa kernel: CPU: 0
> Feb 5 13:34:22 stoa kernel: EIP: 0060:[<c0150b01>] Tainted: G D VLI
> Feb 5 13:34:22 stoa kernel: EFLAGS: 00010006 (2.6.23.13newhome #3)
> Feb 5 13:34:22 stoa kernel: EIP is at __kmalloc+0x4c/0x8a
> Feb 5 13:34:22 stoa kernel: eax: 00000000 ebx: 3175b800 ecx: c0385be4 edx: c15c62e0
> Feb 5 13:34:22 stoa kernel: esi: c0385be4 edi: 00000286 ebp: 000000d0 esp: e8b4fe20
> Feb 5 13:34:22 stoa kernel: ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
> Feb 5 13:34:22 stoa kernel: Process route (pid: 6201, ti=e8b4e000 task=e8186540 task.ti=e8b4e000)
> Feb 5 13:34:22 stoa kernel: Stack: e80c1f80 e86a9500 e86a9000 e85d76e8 ffffff97 00000000 c029f81d e8b4fe84
> Feb 5 13:34:22 stoa kernel: 0000890b c029caf4 00000000 00000000 00000000 e8b4fef4 e85d76c0 00000000
> Feb 5 13:34:22 stoa kernel: 00000000 00000000 00000000 e86a9000 00000000 00000000 00000000 ffffff97
> Feb 5 13:34:22 stoa kernel: Call Trace:
> Feb 5 13:34:22 stoa kernel: [<c029f81d>] fn_hash_insert+0x7e/0x619
> Feb 5 13:34:22 stoa kernel: [<c029caf4>] inet_addr_type+0x73/0xc8
> Feb 5 13:34:22 stoa kernel: [<c029d4c9>] ip_rt_ioctl+0x2ed/0x334
> Feb 5 13:34:22 stoa kernel: [<c02594a1>] sock_attach_fd+0x53/0xae
> Feb 5 13:34:22 stoa kernel: [<c0259054>] sock_ioctl+0x19f/0x1be
> Feb 5 13:34:22 stoa kernel: [<c0258eb5>] sock_ioctl+0x0/0x1be
> Feb 5 13:34:22 stoa kernel: [<c015c369>] do_ioctl+0x19/0x4d
> Feb 5 13:34:22 stoa kernel: [<c015c585>] vfs_ioctl+0x1e8/0x1ff
> Feb 5 13:34:22 stoa kernel: [<c01521ce>] do_sys_open+0xbb/0xc5
> Feb 5 13:34:22 stoa kernel: [<c015c5cf>] sys_ioctl+0x33/0x4c
> Feb 5 13:34:22 stoa kernel: [<c0103bee>] syscall_call+0x7/0xb
> Feb 5 13:34:22 stoa kernel: [<c02c0000>] ieee80211_rx_mgmt_assoc_resp+0x4be/0x5c5
> Feb 5 13:34:22 stoa kernel: =======================
> Feb 5 13:34:22 stoa kernel: Code: 00 00 00 85 d2 74 06 83 7a 0c 00 75 17 89 54 24 04 83 c9 ff 89 ea 89 04 24 89 f0 e8 32 f2 ff ff 89 c3 eb 0d 8b 5a 0c 0f b7 42 0a <8b> 04 83 89 42 0c 57 9d 89 e8 25 00 80 00 00 66 85 c0 74 1f 85
> Feb 5 13:34:22 stoa kernel: EIP: [<c0150b01>] __kmalloc+0x4c/0x8a SS:ESP 0068:e8b4fe20
>
>
>
>
> Feb 5 13:34:29 stoa kernel: BUG: unable to handle kernel paging request at virtual address 3175b800
> Feb 5 13:34:29 stoa kernel: printing eip:
> Feb 5 13:34:29 stoa kernel: c0150b01
> Feb 5 13:34:29 stoa kernel: *pde = 00000000
> Feb 5 13:34:29 stoa kernel: Oops: 0000 [#4]
> Feb 5 13:34:29 stoa kernel: Modules linked in: ppdev lp cpufreq_stats fuse sr_mod sbp2 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss video sd_mod output rng_core irda parport_pc parport 8250_pci 8250 serial_core snd_pcm crc_ccitt snd_timer snd_page_alloc evdev rtc ide_disk ide_cd cdrom usb_storage usbhid scsi_mod ohci1394 piix ieee1394 ide_core ehci_hcd uhci_hcd usbcore unix
> Feb 5 13:34:29 stoa kernel: CPU: 0
> Feb 5 13:34:29 stoa kernel: EIP: 0060:[<c0150b01>] Tainted: G D VLI
> Feb 5 13:34:29 stoa kernel: EFLAGS: 00010006 (2.6.23.13newhome #3)
> Feb 5 13:34:29 stoa kernel: EIP is at __kmalloc+0x4c/0x8a
> Feb 5 13:34:29 stoa kernel: eax: 00000000 ebx: 3175b800 ecx: c0385be4 edx: c15c62e0
> Feb 5 13:34:29 stoa kernel: esi: c0385be4 edi: 00000286 ebp: 000080d0 esp: ea47ddc4
> Feb 5 13:34:29 stoa kernel: ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
> Feb 5 13:34:29 stoa kernel: Process sleepd (pid: 5413, ti=ea47c000 task=eceb2000 task.ti=ea47c000)
> Feb 5 13:34:29 stoa kernel: Stack: e85c2200 ecc47eb0 dfc483f0 00000004 ea47de4c e86a95b0 c01e98d4 c03300a3
> Feb 5 13:34:29 stoa kernel: c03300a3 c0160b25 00000008 00000001 00000000 00000000 dfc483f0 e86a95b0
> Feb 5 13:34:29 stoa kernel: 00000000 e86a95b0 c01e9938 137e7407 00000005 e8fbc018 dffea400 e85c2200
> Feb 5 13:34:29 stoa kernel: Call Trace:
> Feb 5 13:34:29 stoa kernel: [<c01e98d4>] acpi_ns_internalize_name+0x44/0x77
> Feb 5 13:34:29 stoa kernel: [<c0160b25>] dput+0x21/0xd7
> Feb 5 13:34:29 stoa kernel: [<c01e9938>] acpi_ns_get_node+0x31/0x93
> Feb 5 13:34:29 stoa kernel: [<c0163913>] mntput_no_expire+0x11/0x4e
> Feb 5 13:34:29 stoa kernel: [<c015a8d3>] link_path_walk+0xa5/0xaf
> Feb 5 13:34:29 stoa kernel: [<c01e92aa>] acpi_ns_evaluate+0x2e/0xf0
> Feb 5 13:34:29 stoa kernel: [<c01e8f81>] acpi_evaluate_object+0x124/0x1c7
> Feb 5 13:34:29 stoa kernel: [<c01db1fc>] acpi_evaluate_integer+0x7b/0xae
> Feb 5 13:34:29 stoa kernel: [<c01f1c16>] acpi_bus_get_status+0x32/0x89
> Feb 5 13:34:29 stoa kernel: [<c0166c8e>] single_open+0x48/0x68
> Feb 5 13:34:29 stoa kernel: [<c01f4c87>] acpi_battery_get_status+0xb/0x3d
> Feb 5 13:34:29 stoa kernel: [<c0178e47>] proc_reg_open+0x0/0x30
> Feb 5 13:34:29 stoa kernel: [<c0178e71>] proc_reg_open+0x2a/0x30
> Feb 5 13:34:29 stoa kernel: [<c01f4d6e>] acpi_battery_update+0x2a/0x88
> Feb 5 13:34:29 stoa kernel: [<c0151fc5>] __dentry_open+0xd4/0x160
> Feb 5 13:34:29 stoa kernel: [<c01f4e0b>] acpi_battery_read+0x3f/0x7a
> Feb 5 13:34:29 stoa kernel: [<c0166d9a>] seq_read+0xec/0x276
> Feb 5 13:34:29 stoa kernel: [<c0166cae>] seq_read+0x0/0x276
> Feb 5 13:34:29 stoa kernel: [<c0178d15>] proc_reg_read+0x35/0x46
> Feb 5 13:34:29 stoa kernel: [<c0178ce0>] proc_reg_read+0x0/0x46
> Feb 5 13:34:29 stoa kernel: [<c0153b51>] vfs_read+0x88/0x10a
> Feb 5 13:34:29 stoa kernel: [<c0153e71>] sys_read+0x41/0x67
> Feb 5 13:34:29 stoa kernel: [<c0103bee>] syscall_call+0x7/0xb
> Feb 5 13:34:29 stoa kernel: =======================
> Feb 5 13:34:29 stoa kernel: Code: 00 00 00 85 d2 74 06 83 7a 0c 00 75 17 89 54 24 04 83 c9 ff 89 ea 89 04 24 89 f0 e8 32 f2 ff ff 89 c3 eb 0d 8b 5a 0c 0f b7 42 0a <8b> 04 83 89 42 0c 57 9d 89 e8 25 00 80 00 00 66 85 c0 74 1f 85
> Feb 5 13:34:29 stoa kernel: EIP: [<c0150b01>] __kmalloc+0x4c/0x8a SS:ESP 0068:ea47ddc4
>
> =======================================================================
>
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