suspend/resume panic in ACPI..

Nate Lawson nate at
Mon Aug 23 09:51:53 PDT 2004

Søren Schmidt wrote:
> Nate Lawson wrote:
>> Try the attached patch.
> OK, that makes the box suspend alright, but neither that nor any other 
> box or laptop I've got can get out of suspend without locking up.
> If I revert just /sys/dev/acpica and /sys/i386/acpica to aug-01 both 
> suspend and resume works (sortof, it does tend to panic later on).
> It starts failing around aug-05 and then detoriates from that on to the 
> current state of locking up hard on resume.
> It also fails in the exact same way on non-ATA systems, so I think I'm 
> out of the loop this time :)

This may be fixed now in both current and releng_5.  A logic inversion 
bug (= / !=) was causing pci irq link programming on resume to fail.  It 
didn't impact many people since a lot of systems have chipsets that keep 
power to irq links while suspended.

Please test again.


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