On Sat, 01 Oct 2005 14:24:12 -0400 Mark Lord wrote:
> Jeff Garzik wrote:
> ..
> > Ah hah! I found the other SCSI suspend patch:
> > http://lwn.net/Articles/97453/
> > Anybody (Joshua?) up for reconciling and testing the two?
>
> I just now tried out *only* "the other SCSI suspend patch",
> and by itself it hangs on resume. Laptop computer, blank screen,
> no serial ports, no printk()s visible.
>
> And there's one minor bug in that patch: it uses GFP_KERNEL to
> alloc a buffer, but on resume it really should use GFP_ATOMIC instead,
> since the swap device is the same drive we're trying to resume..
>
> > 2) sd should call START STOP UNIT on resume
>
> That's probably why it hangs when used as-is by itself.
> I may do some further testing.
>
> Anyone else out there playing with this yet?
Not playing with it yet, just making some changes as suggested
by Jeff and Christoph. Patches are in
http://www.xenotime.net/linux/scsi/
1. http://www.xenotime.net/linux/scsi/scsi-suspend-resume.patch
2. http://www.xenotime.net/linux/scsi/scsi-susres-startstop2.patch
and work-in-progress: adding <spindown> ok/allowed to scsi
targets: http://www.xenotime.net/linux/scsi/scsi-susres-stst-spin.patch
(this patch file includes 1. and 2. above)
---
~Randy
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