S3 (suspend to RAM) slow on resume

["Alexandre Rossi" <alexandre.rossi@gmail.com>]

Hi all,

Many people are reporting that suspend to RAM is not working as
expected on at least various Vaio laptops : it takes very long (about
40 seconds) to come back from suspend.

On those laptops, the recipe to make S3 work is about like this :
1. Try to use acpi_sleep=s3_bios, napic, nolapic kernel boot options
2. Use a hard drive reset trick to be able to come back from suspend
(i. e. hdparm -w /dev/hda)
There is a good description of this on this page :
http://www.sr.bham.ac.uk/~adf/debian-on-sony.html

But after waking up, the console outputs :
hda: lost interrupt
hda: dma_timer_expiry: dma status == 0x21
Those messages repeat and there are also DriveSeekError messages.

Does anybody if this is hardware related?
Or is this a kernel bug?

Thanks in advance for any clue on this.

Alexandre