Re: [PATCH] Avoid slab errors on suspend

[Shaohua Li <shaohua.li@intel.com>]

Thomas Renninger wrote:
> On Wednesday 08 March 2006 09:04, Thomas Renninger wrote:
>  > When going into suspend irqs must be disabled for a long time.
>  >
> Mine is very similar to recently posted:
> [patch 16/22] acpi_os_acquire_object (GFP_KERNEL) called with IRQs 
> disabled through suspend-resume
> 
> Hmm, but on my machine "acpi_os_derive_pci_id_2" is also invoked, 
> calling "acpi_evaluate_integer" in utils.c
> that also has a GFP_KERNEL call.
> 
> Davi, maybe it's best if you post the second part of your patch (which 
> is part of the
> ACPICA?) directly to Len/Robert.
> 
> Mine includes the first part of yours and adds some additional 
> acpi_in_resume checks that seem
> to be necessary on some machines.
If you want to workaround such issue, maybe we should change system_state
to !SYSTEM_RUNNING at the begining of irqrouter_resume' and restore it at
the end of this routine. This should solve all such issues.

Thanks,
Shaohua