Messages in this thread | | | Date | Mon, 10 Jul 2006 11:21:30 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [linux-pm] [BUG] sleeping function called from invalid context during resume |
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On Mon, 10 Jul 2006, Brown, Len wrote:
> Okay, if system_state is off limits, there here is what I've got > (interesting part is the last 20 lines) > > ACPI: acpi_os_allocate() fixes > > Replace acpi_in_resume with a more general hack > to check irqs_disabled() on any kmalloc() from ACPI. > While setting (system_state != SYSTEM_RUNNING) on resume > seemed more general, Andrew Morton preferred this approach.
I'm not sure how you would like to handle this, but a similar fix needs to be made in drivers/acpi/osl.c:acpi_os_wait_semaphore(). If interrupts are disabled the timeout argument should be set to 0, so that the routine will call down_trylock() instead of down() or schedule_timeout_interruptible().
Alan Stern
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