ACPI resume doesn't work in i386 with SMP enabled on netbook

Garrett Cooper yanegomi at
Sun Aug 21 05:23:37 UTC 2011

2011/8/20 Любомир Григоров <nm.knife at>:
> It is commonly know for i386 to have problems with ACPI suspend/resume.
> AMD64 is a different story.
> Check my thread, some devs explain further:
> Cheers.
> 2011/8/20 Garrett Cooper <yanegomi at>
>> Hi,
>>    /etc/rc.resume with GENERIC hangs on my netbook on resume (it
>> comes up with a blank black screen), so I removed all of the drivers
>> from my custom $KERNCONF (except the most essential pieces, i.e. acpi,
>> ata_cam, options INET, etc) and debugged the suspend/resume issue down
>> SMP support (it was hanging in the ioapic code). Once I disabled SMP
>> support, suspend/resume worked properly.
>>    My next question: how do I fix this issue or what should I do next
>> to debug it further :)?
>> Thanks!
>> -Garrett
>> $ uname -a
>> FreeBSD akai-ntbk.local 9.0-BETA1 FreeBSD 9.0-BETA1 #1 r224948M: Fri
>> Aug 19 00:35:51 PDT 2011
>> root at akai-ntbk.local:/usr/obj/usr/src/sys/NETBOOK  i386

Perfect -- thanks for the info :)!

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