From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.7.10) Gecko/20050720 Fedora/1.0.6-1.1.fc4 Firefox/1.0.6 Description of problem: JVC Mininote XP7230 Laptop On resume from suspend to memory the follow kernel debug message is seen Sep 2 10:42:15 localhost kernel: Debug: sleeping function called from invalid c ontext at mm/slab.c:2126 Version-Release number of selected component (if applicable): kernel 2.6.12-1.1398_FC4 How reproducible: Always Steps to Reproduce: 1. suspend to memory, after unloading usb & wlan modules and going to text mode 2. restart laptop 3. debug error messages seen 4. laptop usually restarts correctly, but sometimes hangs Actual Results: Sep 2 10:42:15 localhost kernel: Debug: sleeping function called from invalid c ontext at mm/slab.c:2126 Sep 2 10:42:15 localhost kernel: in_atomic():0, irqs_disabled():1 Sep 2 10:42:15 localhost kernel: [<c015c376>] kmem_cache_alloc+0x3c/0x49 Sep 2 10:42:15 localhost kernel: [<c0248562>] acpi_pci_link_set+0x3f/0x17f Sep 2 10:42:15 localhost kernel: [<c02489ac>] irqrouter_resume+0x14/0x28 Sep 2 10:42:15 localhost kernel: [<c0287c5e>] sysdev_resume+0x3d/0xb5 Sep 2 10:42:15 localhost kernel: [<c028bd57>] device_power_up+0x5/0xa Sep 2 10:42:15 localhost kernel: [<c014a8cb>] suspend_enter+0x44/0x46 Sep 2 10:42:15 localhost kernel: [<c014a859>] suspend_prepare+0x57/0x85 Sep 2 10:42:15 localhost kernel: [<c014a93e>] enter_state+0x49/0x54 Sep 2 10:42:15 localhost kernel: [<c014aa39>] state_store+0x81/0x8f Sep 2 10:42:15 localhost NetworkManager: <WARNING> (): nm_device_set_enc_ key(): error setting key for device wlan0. errno = 19 Sep 2 10:42:15 localhost kernel: [<c014a9b8>] state_store+0x0/0x8f Sep 2 10:42:15 localhost NetworkManager: <WARNING> (): nm_device_get_mode (wlan0): error getting card mode. errno = 19 Sep 2 10:42:15 localhost kernel: [<c01ce194>] subsys_attr_store+0x1b/0x1f Sep 2 10:42:15 localhost NetworkManager: <WARNING> (): nm_device_set_mode (wlan0): error setting card to Infrastructure mode. errno = 19 Sep 2 10:42:15 localhost gpm[2232]: *** info [mice.c(1766)]: Sep 2 10:42:15 localhost kernel: [<c01ce39d>] flush_write_buffer+0x22/0x28 Sep 2 10:42:15 localhost gpm[2232]: imps2: Auto-detected intellimouse PS/2 Sep 2 10:42:15 localhost kernel: [<c01ce3ec>] sysfs_write_file+0x49/0x6e Sep 2 10:42:15 localhost kernel: [<c01ce3a3>] sysfs_write_file+0x0/0x6e Sep 2 10:42:15 localhost kernel: [<c017b9e4>] vfs_write+0x9e/0x110 Sep 2 10:42:15 localhost kernel: [<c017bb01>] sys_write+0x41/0x6a Sep 2 10:42:15 localhost kernel: [<c0103a51>] syscall_call+0x7/0xb Sep 2 10:42:15 localhost kernel: eth0: Media Link Off Additional info:
update to the latest errata kernel-2.6.12-1.1447_FC4
(In reply to comment #1) > update to the latest errata kernel-2.6.12-1.1447_FC4 ACPI seems broken on this laptop with kernel 1447_FC4 (see bug 166816 - no events or bat stats) - I don't think the results I'd get will be useful until acpi gets fixed. So , I'll wait for a later kernel, and retry.
any improvement with yesterdays errata -1.1456 ? There's also a more 'bleeding edge' testing update available at http://people.redhat.com/davej/kernels/Fedora/FC4/
Yes - a definite improvement with -1.1456 - I'm no longer getting the debug messages on wake-up. I am getting two missed irq message on sleep.( details below ) yenta_socket & snd_trident I'm still not getting acpi events consistently - battstat gets stuck at 0%, no hotkey events and sometimes the ac plug/uplug event missed. Even cat BAT0/state is very slow i.e. time cat /proc/acpi/battery/BAT0/state gives r=0.058,u=0,s=0.026 with 1398 r=1.016,u=0,s=0.013 with 1456 I'll give your latest bleeding edge a try, if I'm still seeing event problems I'll report a new bug, as bug 166816 has now been closed. ==== message log ====== Sep 24 14:12:54 localhost kernel: irq 11: nobody cared! Sep 24 14:12:54 localhost kernel: [<c0151e74>] __report_bad_irq+0x24/0x7f Sep 24 14:12:54 localhost kernel: [<d79a57fb>] yenta_interrupt+0xa/0x23 [yenta_socket] Sep 24 14:12:54 localhost kernel: [<c0151f46>] note_interrupt+0x59/0x83 Sep 24 14:12:54 localhost kernel: [<c0151220>] __do_IRQ+0x1f7/0x347 Sep 24 14:12:54 localhost kernel: [<c0105b2d>] do_IRQ+0x4a/0x82 Sep 24 14:12:54 localhost kernel: ======================= Sep 24 14:12:54 localhost kernel: [<c012d8a5>] process_timeout+0x0/0x5 Sep 24 14:12:54 localhost kernel: [<c0103c1e>] common_interrupt+0x1a/0x20 Sep 24 14:12:54 localhost kernel: [<c01286ec>] __do_softirq+0x2c/0x8a Sep 24 14:12:54 localhost kernel: [<c0105c39>] do_softirq+0x3e/0x42 Sep 24 14:12:54 localhost kernel: ======================= Sep 24 14:12:54 localhost kernel: [<c0105b34>] do_IRQ+0x51/0x82 Sep 24 14:12:54 localhost kernel: [<c017fe3d>] __bread+0x10/0x2a Sep 24 14:12:54 localhost kernel: [<c0103c1e>] common_interrupt+0x1a/0x20 Sep 24 14:12:54 localhost kernel: [<c02fc112>] pci_conf1_write+0xcd/0x1c8 Sep 24 14:12:54 localhost kernel: [<c0153012>] find_get_page+0x9/0x24 Sep 24 14:12:54 localhost kernel: [<c017de59>] __find_get_block_slow+0x9a/0x25c Sep 24 14:12:54 localhost kernel: [<c017fd8b>] __find_get_block+0xb4/0xcb Sep 24 14:12:54 localhost kernel: [<c017fc98>] bh_lru_install+0x8d/0xcc Sep 24 14:12:54 localhost kernel: [<c0230b33>] acpi_os_write_pci_configuration+0x65/0x7a Sep 24 14:12:54 localhost kernel: [<c023acdb>] acpi_ex_pci_config_space_handler+0x0/0x61 Sep 24 14:12:54 localhost kernel: [<c0234724>] acpi_ev_address_space_dispatch+0xb6/0x115 Sep 24 14:12:54 localhost kernel: [<c02381c9>] acpi_ex_access_region+0x45/0x8e Sep 24 14:12:54 localhost kernel: [<c023833e>] acpi_ex_field_datum_io+0xfc/0x18b Sep 24 14:12:54 localhost kernel: [<c02384b6>] acpi_ex_write_with_update_rule+0xe9/0xf2 Sep 24 14:12:54 localhost kernel: [<c0238918>] acpi_ex_insert_into_field+0x24a/0x25a Sep 24 14:12:54 localhost kernel: [<c02371b0>] acpi_ex_write_data_to_field+0x1e6/0x216 Sep 24 14:12:54 localhost gpm[2616]: *** info [mice.c(1766)]: Sep 24 14:12:54 localhost kernel: [<c023affd>] acpi_ex_store_object_to_node+0x72/0xad Sep 24 14:12:54 localhost gpm[2616]: imps2: Auto-detected intellimouse PS/2 Sep 24 14:12:54 localhost kernel: [<c02456b9>] acpi_ut_allocate_object_desc_dbg+0x13/0x49 Sep 24 14:12:54 localhost kernel: [<c023ae79>] acpi_ex_store+0x8e/0xf1 Sep 24 14:12:54 localhost kernel: [<c023a908>] acpi_ex_opcode_2A_1T_1R+0x2d2/0x353 Sep 24 14:12:54 localhost kernel: [<c023270c>] acpi_ds_exec_end_op+0xa0/0x31c Sep 24 14:12:54 localhost kernel: [<c023fa24>] acpi_ps_parse_loop+0x4e8/0x7b8 Sep 24 14:12:54 localhost kernel: [<c023f3d1>] acpi_ps_parse_aml+0x45/0x1b0 Sep 24 14:12:54 localhost kernel: [<c0240142>] acpi_ps_execute_pass+0x6b/0x7d Sep 24 14:12:54 localhost kernel: [<c024007f>] acpi_ps_execute_method+0x43/0x6b Sep 24 14:12:54 localhost kernel: [<c023da5a>] acpi_ns_execute_control_method+0x42/0x4e Sep 24 14:12:54 localhost kernel: [<c023d9fc>] acpi_ns_evaluate_by_handle+0x6f/0x8b Sep 24 14:12:54 localhost kernel: [<c023d903>] acpi_ns_evaluate_relative+0xa7/0xc7 Sep 24 14:12:54 localhost kernel: [<c0243ba9>] acpi_ut_evaluate_object+0x26/0x118 Sep 24 14:12:54 localhost kernel: [<c024a484>] acpi_pci_link_free_irq+0x6c/0x85 Sep 24 14:12:54 localhost kernel: [<c024ae6a>] acpi_pci_irq_lookup+0x29/0x30 Sep 24 14:12:54 localhost kernel: [<c024b132>] acpi_pci_irq_disable+0x73/0xbd Sep 24 14:12:54 localhost kernel: [<c024ae2f>] acpi_pci_free_irq+0x0/0x12 Sep 24 14:12:54 localhost kernel: [<c02fdbae>] pcibios_disable_device+0xc/0xe Sep 24 14:12:54 localhost kernel: [<c021a304>] pci_disable_device+0x57/0x63 Sep 24 14:12:54 localhost kernel: [<d79a72a8>] yenta_dev_suspend+0x6e/0x84 [yenta_socket] Sep 24 14:12:54 localhost kernel: [<c021c339>] pci_device_suspend+0x13/0x23 Sep 24 14:12:54 localhost kernel: [<c028df20>] suspend_device+0x98/0xa0 Sep 24 14:12:54 localhost kernel: [<c028dfe6>] device_suspend+0xbe/0x17d Sep 24 14:12:54 localhost kernel: [<c014acb5>] suspend_prepare+0x63/0xc1 Sep 24 14:12:54 localhost kernel: [<c014adb0>] enter_state+0x2b/0x54 Sep 24 14:12:54 localhost kernel: [<c014aec9>] state_store+0x81/0x8f Sep 24 14:12:54 localhost kernel: [<c014ae48>] state_store+0x0/0x8f Sep 24 14:12:54 localhost kernel: [<c01cec94>] subsys_attr_store+0x1b/0x1f Sep 24 14:12:54 localhost kernel: [<c01cee9d>] flush_write_buffer+0x22/0x28 Sep 24 14:12:54 localhost kernel: [<c01ceeec>] sysfs_write_file+0x49/0x6e Sep 24 14:12:54 localhost kernel: [<c01ceea3>] sysfs_write_file+0x0/0x6e Sep 24 14:12:54 localhost kernel: [<c017c154>] vfs_write+0x9e/0x110 Sep 24 14:12:54 localhost kernel: [<c017c271>] sys_write+0x41/0x6a Sep 24 14:12:54 localhost kernel: [<c0103a61>] syscall_call+0x7/0xb Sep 24 14:12:54 localhost kernel: handlers: Sep 24 14:12:54 localhost kernel: [<d79a57f1>] (yenta_interrupt+0x0/0x23 [yenta_socket]) Sep 24 14:12:54 localhost kernel: Disabling IRQ #11 Sep 24 14:12:54 localhost kernel: ACPI: PCI interrupt for device 0000:00:09.0 disabled Sep 24 14:12:54 localhost kernel: irq 7: nobody cared! Sep 24 14:12:54 localhost kernel: [<c0151e74>] __report_bad_irq+0x24/0x7f Sep 24 14:12:54 localhost kernel: [<c0151f46>] note_interrupt+0x59/0x83 Sep 24 14:12:54 localhost kernel: [<c0151220>] __do_IRQ+0x1f7/0x347 Sep 24 14:12:54 localhost kernel: [<c0105b2d>] do_IRQ+0x4a/0x82 Sep 24 14:12:54 localhost kernel: ======================= Sep 24 14:12:54 localhost kernel: [<c0103c1e>] common_interrupt+0x1a/0x20 Sep 24 14:12:54 localhost kernel: [<c01286ec>] __do_softirq+0x2c/0x8a Sep 24 14:12:54 localhost kernel: [<c0105c39>] do_softirq+0x3e/0x42 Sep 24 14:12:54 localhost kernel: ======================= Sep 24 14:12:54 localhost kernel: [<c0105b34>] do_IRQ+0x51/0x82 Sep 24 14:12:54 localhost kernel: [<c0105b34>] do_IRQ+0x51/0x82 Sep 24 14:12:54 localhost kernel: [<c0103c1e>] common_interrupt+0x1a/0x20 Sep 24 14:12:54 localhost kernel: [<c02fc112>] pci_conf1_write+0xcd/0x1c8 Sep 24 14:12:54 localhost kernel: [<c0153012>] find_get_page+0x9/0x24 Sep 24 14:12:54 localhost kernel: [<c017de59>] __find_get_block_slow+0x9a/0x25c Sep 24 14:12:54 localhost kernel: [<c017fd8b>] __find_get_block+0xb4/0xcb Sep 24 14:12:54 localhost kernel: [<c017fc98>] bh_lru_install+0x8d/0xcc Sep 24 14:12:54 localhost kernel: [<c0230b33>] acpi_os_write_pci_configuration+0x65/0x7a Sep 24 14:12:54 localhost kernel: [<c023acdb>] acpi_ex_pci_config_space_handler+0x0/0x61 Sep 24 14:12:54 localhost kernel: [<c0234724>] acpi_ev_address_space_dispatch+0xb6/0x115 Sep 24 14:12:54 localhost kernel: [<c02381c9>] acpi_ex_access_region+0x45/0x8e Sep 24 14:12:54 localhost kernel: [<c023833e>] acpi_ex_field_datum_io+0xfc/0x18b Sep 24 14:12:54 localhost kernel: [<c02384b6>] acpi_ex_write_with_update_rule+0xe9/0xf2 Sep 24 14:12:54 localhost kernel: [<c0238918>] acpi_ex_insert_into_field+0x24a/0x25a Sep 24 14:12:54 localhost kernel: [<c02371b0>] acpi_ex_write_data_to_field+0x1e6/0x216 Sep 24 14:12:54 localhost kernel: [<c023affd>] acpi_ex_store_object_to_node+0x72/0xad Sep 24 14:12:54 localhost kernel: [<c02456b9>] acpi_ut_allocate_object_desc_dbg+0x13/0x49 Sep 24 14:12:54 localhost kernel: [<c023ae79>] acpi_ex_store+0x8e/0xf1 Sep 24 14:12:54 localhost kernel: [<c023a908>] acpi_ex_opcode_2A_1T_1R+0x2d2/0x353 Sep 24 14:12:54 localhost kernel: [<c023270c>] acpi_ds_exec_end_op+0xa0/0x31c Sep 24 14:12:54 localhost kernel: [<c023fa24>] acpi_ps_parse_loop+0x4e8/0x7b8 Sep 24 14:12:54 localhost kernel: [<c023f3d1>] acpi_ps_parse_aml+0x45/0x1b0 Sep 24 14:12:54 localhost kernel: [<c0240142>] acpi_ps_execute_pass+0x6b/0x7d Sep 24 14:12:54 localhost kernel: [<c024007f>] acpi_ps_execute_method+0x43/0x6b Sep 24 14:12:54 localhost kernel: [<c023da5a>] acpi_ns_execute_control_method+0x42/0x4e Sep 24 14:12:54 localhost kernel: [<c023d9fc>] acpi_ns_evaluate_by_handle+0x6f/0x8b Sep 24 14:12:54 localhost kernel: [<c023d903>] acpi_ns_evaluate_relative+0xa7/0xc7 Sep 24 14:12:54 localhost kernel: [<c0243ba9>] acpi_ut_evaluate_object+0x26/0x118 Sep 24 14:12:54 localhost kernel: [<c024a484>] acpi_pci_link_free_irq+0x6c/0x85 Sep 24 14:12:54 localhost kernel: [<c024ae6a>] acpi_pci_irq_lookup+0x29/0x30 Sep 24 14:12:54 localhost kernel: [<c024b132>] acpi_pci_irq_disable+0x73/0xbd Sep 24 14:12:54 localhost kernel: [<c024ae2f>] acpi_pci_free_irq+0x0/0x12 Sep 24 14:12:54 localhost kernel: [<c02fdbae>] pcibios_disable_device+0xc/0xe Sep 24 14:12:54 localhost kernel: [<c021a304>] pci_disable_device+0x57/0x63 Sep 24 14:12:54 localhost kernel: [<d796fa05>] snd_trident_suspend+0x5c/0x60 [snd_trident] Sep 24 14:12:54 localhost kernel: [<d789cb90>] snd_card_pci_suspend+0x31/0x74 [snd] Sep 24 14:12:54 localhost kernel: [<c021c339>] pci_device_suspend+0x13/0x23 Sep 24 14:12:54 localhost kernel: [<c028df20>] suspend_device+0x98/0xa0 Sep 24 14:12:54 localhost kernel: [<c028dfe6>] device_suspend+0xbe/0x17d Sep 24 14:12:54 localhost kernel: [<c014acb5>] suspend_prepare+0x63/0xc1 Sep 24 14:12:54 localhost kernel: [<c014adb0>] enter_state+0x2b/0x54 Sep 24 14:12:54 localhost kernel: [<c014aec9>] state_store+0x81/0x8f Sep 24 14:12:54 localhost kernel: [<c014ae48>] state_store+0x0/0x8f Sep 24 14:12:54 localhost kernel: [<c01cec94>] subsys_attr_store+0x1b/0x1f Sep 24 14:12:54 localhost kernel: [<c01cee9d>] flush_write_buffer+0x22/0x28 Sep 24 14:12:54 localhost kernel: [<c01ceeec>] sysfs_write_file+0x49/0x6e Sep 24 14:12:54 localhost kernel: [<c01ceea3>] sysfs_write_file+0x0/0x6e Sep 24 14:12:54 localhost kernel: [<c017c154>] vfs_write+0x9e/0x110 Sep 24 14:12:54 localhost kernel: [<c017c271>] sys_write+0x41/0x6a Sep 24 14:12:54 localhost kernel: [<c0103a61>] syscall_call+0x7/0xb Sep 24 14:12:54 localhost kernel: handlers: Sep 24 14:12:55 localhost kernel: [<d796ed5c>] (snd_trident_interrupt+0x0/0x4b7 [snd_trident]) Sep 24 14:12:55 localhost kernel: Disabling IRQ #7 Sep 24 14:12:55 localhost kernel: ACPI: PCI interrupt for device 0000:00:01.4 disabled Sep 24 14:12:55 localhost kernel: ACPI: 1 drivers with interrupt 5 neglected to call pci_disable_device at .suspend Sep 24 14:12:55 localhost kernel: ACPI: Fix the driver, or rmmod before suspend Sep 24 14:12:55 localhost kernel: ACPI: 1 drivers with interrupt 4 neglected to call pci_disable_device at .suspend Sep 24 14:12:55 localhost kernel: ACPI: Fix the driver, or rmmod before suspend
with davej 2.6.13-1.1525 all events & batstat working correctly :) no messages form yenta or snd_trident on suspend the debug message on resume is back :( Sep 24 15:46:30 localhost kernel: Debug: sleeping function called from invalid context at mm/slab.c:2129 Sep 24 15:46:30 localhost kernel: in_atomic():0, irqs_disabled():1 Sep 24 15:46:30 localhost kernel: [<c0176923>] kmem_cache_alloc+0x3c/0x4e Sep 24 15:46:30 localhost kernel: [<c029928a>] acpi_pci_link_set+0x3f/0x17f Sep 24 15:46:30 localhost kernel: [<c02997f2>] irqrouter_resume+0x1e/0x3c Sep 24 15:46:30 localhost kernel: [<c02e790d>] sysdev_resume+0x3d/0xb5 Sep 24 15:46:30 localhost gpm[1873]: *** info [mice.c(1766)]: Sep 24 15:46:31 localhost kernel: [<c02ec241>] device_power_up+0x5/0xa Sep 24 15:46:31 localhost gpm[1873]: imps2: Auto-detected intellimouse PS/2 Sep 24 15:46:31 localhost kernel: [<c015eb08>] suspend_enter+0x44/0x46 Sep 24 15:46:31 localhost kernel: [<c015ea6a>] suspend_prepare+0x63/0xbd Sep 24 15:46:31 localhost kernel: [<c015eb7e>] enter_state+0x49/0x54 Sep 24 15:46:31 localhost kernel: [<c015ec79>] state_store+0x81/0x8f Sep 24 15:46:31 localhost kernel: [<c015ebf8>] state_store+0x0/0x8f Sep 24 15:46:31 localhost kernel: [<c020f25a>] subsys_attr_store+0x1e/0x22 Sep 24 15:46:31 localhost kernel: [<c020f464>] flush_write_buffer+0x22/0x28 Sep 24 15:46:31 localhost kernel: [<c020f4b8>] sysfs_write_file+0x4e/0x73 Sep 24 15:46:31 localhost kernel: [<c020f46a>] sysfs_write_file+0x0/0x73 Sep 24 15:46:31 localhost kernel: [<c01a1027>] vfs_write+0xa2/0x15a Sep 24 15:46:31 localhost kernel: [<c01a118a>] sys_write+0x41/0x6a Sep 24 15:46:31 localhost kernel: [<c0104465>] syscall_call+0x7/0xb
Mass update to all FC4 bugs: An update has been released (2.6.13-1.1526_FC4) which rebases to a new upstream kernel (2.6.13.2). As there were ~3500 changes upstream between this and the previous kernel, it's possible your bug has been fixed already. Please retest with this update, and update this bug if necessary. Thanks.
with 1526_FC4 I'm still seeing the debug message on resume Oct 5 15:28:32 localhost kernel: Debug: sleeping function called from invalid context at mm/slab.c:2129 Oct 5 15:28:32 localhost kernel: in_atomic():0, irqs_disabled():1 Oct 5 15:28:32 localhost kernel: [<c0176913>] kmem_cache_alloc+0x3c/0x4e Oct 5 15:28:32 localhost kernel: [<c029927a>] acpi_pci_link_set+0x3f/0x17f Oct 5 15:28:32 localhost kernel: [<c02997e2>] irqrouter_resume+0x1e/0x3c Oct 5 15:28:32 localhost kernel: [<c02e792d>] sysdev_resume+0x3d/0xb5 .... (truncated) I'm still seeing some intermitent issues with acpi events & batstat. It works most of the time but sometimes batstat fails to read the acpi battery state and gets stuck reporting N/A, and sometimes it recovers and start working correctly. Also the acpi events (HOTKEY etc) stop being delivered. I'm not seeing any messages, and cannot trigger the fault -- it sometimes just happens. I'm guessing (wildly) a concurrency / locking isssue somewhere but I don't know where to look or how to create a test for it. Any ideas ?
Ok, here is a non-truncated message produced by kernel-2.6.13-1.1526_FC4.i686 Back to C! Debug: sleeping function called from invalid context at mm/slab.c:2129 in_atomic():0, irqs_disabled():1 [<c0176913>] kmem_cache_alloc+0x3c/0x4e [<c029927a>] acpi_pci_link_set+0x3f/0x17f [<c02997e2>] irqrouter_resume+0x1e/0x3c [<c02e792d>] sysdev_resume+0x3d/0xb5 [<c02ec261>] device_power_up+0x5/0xa [<c015eaf8>] suspend_enter+0x44/0x46 [<c015ea5a>] suspend_prepare+0x63/0xbd [<c015eb6e>] enter_state+0x49/0x54 [<c015ec69>] state_store+0x81/0x8f [<c015ebe8>] state_store+0x0/0x8f [<c020f24a>] subsys_attr_store+0x1e/0x22 [<c020f454>] flush_write_buffer+0x22/0x28 [<c020f4a8>] sysfs_write_file+0x4e/0x73 [<c020f45a>] sysfs_write_file+0x0/0x73 [<c01a1017>] vfs_write+0xa2/0x15a [<c01a117a>] sys_write+0x41/0x6a [<c0104465>] syscall_call+0x7/0xb It seems to be recorded every (?) time when a laptop comes back from an S3 sleep.
*** This bug has been marked as a duplicate of 154056 ***
*** This bug has been marked as a duplicate of 154046 ***