Re: [regression] Ideapad S10-3 does not wake up from suspend

From: Robert Scott
Date: Sat Apr 21 2012 - 09:14:36 EST

On Tuesday 17 April 2012, Jonathan Nieder wrote:
> Robert Scott wrote:
> > On Sunday 15 April 2012, Jonathan Nieder wrote:
> >> Lars, Robert, anon: can you try 3.4-rc2 or newer and let us know how
> >> it goes? I suspect v3.4-rc2~24^2~4 ("x86: Preserve lazy irq disable
> >> semantics in fixup_irqs()") will fix this.
> >
> > Hmm, no, 3.4-rc2 seems to produce the same results I'm afraid.
> Alas. Does suspend-to-disk ("echo disk >/sys/power/state") have the
> same problem? Can you get a log of the failure with
> "no_console_suspend" appended to the kernel command line, for example
> with a serial console or netconsole?

(back on 3.2.0-0.bpo.2-686-pae 3.2.12-1~bpo60+1*:)

eth0 seems to go down/come up to early/late to get anything useful from netconsole:

[ 745.161322] PM: Syncing filesystems ... done.
[ 747.088247] PM: Preparing system for mem sleep
[ 747.187932] Freezing user space processes ... (elapsed 0.01 seconds) done.
[ 747.204325] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
[ 747.220416] PM: Entering mem sleep
[ 747.221085] sd 1:0:0:0: [sda] Synchronizing SCSI cache
[ 747.222247] sd 1:0:0:0: [sda] Stopping disk

(then nothing)

I may be able to hook up a usb-serial adaptor to try and get more info but it'll take me a bit longer what with all the rewiring fun as I don't have a null modem cable lying around.

> If someone has time to go through the steps in
> "Documentation/power/basic-pm-debugging.txt", that would also be useful.

"freezer", "devices", "platform", "processors", or "core" pm_test modes all work fine, naturally.


* I notice I accidentally copy/pasted the linux-modules version in a previous mail but you knew what I was talking about
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