[2.6.2-rc1] sleep called from invalid context (8250/ACPI related?)

[Rui Saraiva]

--------------------------------------------------------------------------------|
	Hello,

	I've found this message in my logs while investigating some kernel Oops
(in other message). If you need more info, please ask.

	Regards,
		Rui Saraiva


Debug: sleeping function called from invalid context at include/asm/semaphore.h:119
in_atomic():1, irqs_disabled():0
Call Trace:
 [<c0122ddb>] __might_sleep+0xab/0xd0
 [<d1bd2df6>] uart_unregister_port+0x76/0xa9 [serial_core]
 [<d1bd9559>] unregister_serial+0x19/0x20 [8250]
 [<d1bcb2de>] acpi_serial_remove+0x2e/0x50 [8250_acpi]
 [<c02523f0>] acpi_driver_detach+0xcc/0x184
 [<c0252621>] acpi_bus_unregister_driver+0x18/0x168
 [<d1bcb312>] acpi_serial_exit+0x12/0x14 [8250_acpi]
 [<c014510f>] sys_delete_module+0x13f/0x160
 [<c0166307>] sys_munmap+0x57/0x80
 [<c010a14f>] syscall_call+0x7/0xb
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