john stultz <johnstul <at> us.ibm.com> writes:
>
> I got the following on my laptop w/ 2.6.18-rc1.
>
> thanks
> -john
> Back to C!
> BUG: sleeping function called from invalid context at mm/slab.c:2882
> in_atomic():0, irqs_disabled():1
> [<c0103d59>] show_trace_log_lvl+0x149/0x170
> [<c01052ab>] show_trace+0x1b/0x20
> [<c01052d4>] dump_stack+0x24/0x30
> [<c0116e51>] __might_sleep+0xa1/0xc0
> [<c0165cb5>] kmem_cache_zalloc+0xa5/0xc0
> [<c0264b5a>] acpi_os_acquire_object+0x11/0x41
> [<c027a898>] acpi_ut_allocate_object_desc_dbg+0xf/0x45
> [<c027a926>] acpi_ut_create_internal_object_dbg+0x16/0x69
> [<c0276bd3>] acpi_rs_set_srs_method_data+0x80/0xdd
> [<c02762e5>] acpi_set_current_resources+0x31/0x3f
> [<c02826bf>] acpi_pci_link_set+0xfc/0x1a5
> [<c0282a25>] irqrouter_resume+0x52/0x73
> [<c02b92aa>] __sysdev_resume+0x1a/0x90
> [<c02b9367>] sysdev_resume+0x47/0x70
> [<c02bf1f8>] device_power_up+0x8/0x10
> [<c0142185>] suspend_enter+0x65/0x80
Hmm.. This was fixed in -mm back in February
(http://www.ussg.iu.edu/hypermail/linux/kernel/0602.1/2022.html).
Not sure why it hasn't flowed in to mainline. Does this patch below (against
2.6.18-rc1) fix it?
Parag
Signed-off-by: Parag Warudkar <[email protected]>
--- linux-2.6.17/drivers/acpi/osl.c.orig 2006-07-06
23:22:03.000000000 -0400
+++ linux-2.6.17/drivers/acpi/osl.c 2006-07-06 23:29:43.000000000 -0400
@@ -1130,7 +1130,11 @@ acpi_status acpi_os_release_object(acpi_
void *acpi_os_acquire_object(acpi_cache_t * cache)
{
- void *object = kmem_cache_zalloc(cache, GFP_KERNEL);
+ void* object;
+ if (acpi_in_resume)
+ object = kmem_cache_zalloc(cache, GFP_ATOMIC);
+ else
+ object = kmem_cache_zalloc(cache, GFP_KERNEL);
WARN_ON(!object);
return object;
}
-
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