On my thinkpad a20m i get the following debug messages during boot:
At IDE initialization:
Debug: sleeping function called from illegal context at mm/slab.c:1374
Call Trace:
[__kmem_cache_alloc+202/208] __kmem_cache_alloc+0xca/0xd0
[blk_init_free_list+101/224] blk_init_free_list+0x65/0xe0
[blk_init_queue+23/256] blk_init_queue+0x17/0x100
[ide_init_queue+57/160] ide_init_queue+0x39/0xa0
[do_ide_request+0/48] do_ide_request+0x0/0x30
[init_irq+462/912] init_irq+0x1ce/0x390
[ide_intr+0/384] ide_intr+0x0/0x180
[hwif_init+216/608] hwif_init+0xd8/0x260
[probe_hwif_init+36/112] probe_hwif_init+0x24/0x70
[ide_setup_pci_device+80/128] ide_setup_pci_device+0x50/0x80
[piix_init_one+54/64] piix_init_one+0x36/0x40
[init+53/352] init+0x35/0x160
[init+0/352] init+0x0/0x160
[kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
At USB hub initialization:
Debug: sleeping function called from illegal context at include/asm/semaphore.h:119
Call Trace:
[<cc8485e2>] usb_hub_events+0x72/0x3c0 [usbcore]
[<cc85300b>] .rodata.str1.1+0x42b/0x840 [usbcore]
[schedule+402/768] schedule+0x192/0x300
[reparent_to_init+228/384] reparent_to_init+0xe4/0x180
[<cc848965>] usb_hub_thread+0x35/0xf0 [usbcore]
[default_wake_function+0/64] default_wake_function+0x0/0x40
[<cc85b1a0>] khubd_wait+0x0/0x8 [usbcore]
[<cc85b1a0>] khubd_wait+0x0/0x8 [usbcore]
[<cc848930>] usb_hub_thread+0x0/0xf0 [usbcore]
[kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
Also, i the following occurs when using the buttons for adjusting audio
volume or anything involving the Fn key.
Debug: sleeping function called from illegal context at include/asm/semaphore.h:145
Call Trace:
[<c01a14f8>] acpi_os_wait_semaphore+0x1e8/0x240
[<c01ce53d>] acpi_ut_acquire_mutex+0xdd/0x200
[<c01b6334>] acpi_ex_enter_interpreter+0x44/0xa0
[<c01ad33d>] acpi_acquire_global_lock+0x1d/0x60
[<c01d5ed9>] acpi_ec_query+0x79/0x1c0
[<c01d61bc>] acpi_ec_gpe_handler+0x8c/0xf0
[<c01aa319>] acpi_ev_gpe_dispatch+0x229/0x2b0
[<c01a9f6f>] acpi_ev_gpe_detect+0x14f/0x160
[<c01aaf4e>] acpi_ev_sci_handler+0x9e/0xc0
[<c01a0971>] acpi_irq+0x11/0x20
[<c0108dc5>] handle_IRQ_event+0x45/0x70
[<c01a0960>] acpi_irq+0x0/0x20
[<c0108ff7>] do_IRQ+0x97/0x120
[<c01053f0>] default_idle+0x0/0x40
[<c01053f0>] default_idle+0x0/0x40
[<c0107970>] common_interrupt+0x18/0x20
[<c01053f0>] default_idle+0x0/0x40
[<c01053f0>] default_idle+0x0/0x40
[<c0105414>] default_idle+0x24/0x40
[<c01054aa>] cpu_idle+0x3a/0x50
[<c0105000>] stext+0x0/0x30
regards,
martin
--
Martin Dahl
[email protected]
>>>>> Martin Dahl (Martin) said:
Martin> On my thinkpad a20m i get the following debug messages during boot:
Martin> At IDE initialization:
Martin> Debug: sleeping function called from illegal context at mm/slab.c:1374
Martin> Call Trace:
Martin> [__kmem_cache_alloc+202/208] __kmem_cache_alloc+0xca/0xd0
Martin> [blk_init_free_list+101/224] blk_init_free_list+0x65/0xe0
Martin> [blk_init_queue+23/256] blk_init_queue+0x17/0x100
Martin> [ide_init_queue+57/160] ide_init_queue+0x39/0xa0
Martin> [do_ide_request+0/48] do_ide_request+0x0/0x30
Martin> [init_irq+462/912] init_irq+0x1ce/0x390
Martin> [ide_intr+0/384] ide_intr+0x0/0x180
Martin> [hwif_init+216/608] hwif_init+0xd8/0x260
Martin> [probe_hwif_init+36/112] probe_hwif_init+0x24/0x70
Martin> [ide_setup_pci_device+80/128] ide_setup_pci_device+0x50/0x80
Martin> [piix_init_one+54/64] piix_init_one+0x36/0x40
Martin> [init+53/352] init+0x35/0x160
Martin> [init+0/352] init+0x0/0x160
Martin> [kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
Same here on Dell Inspiron 5000.
Happens with CONFIG_PREEMPT=y. Disappears with CONFIG_PREEMPT=n.
Petr