Re: [Bugme-new] [Bug 14730] New: sky2 won't work after suspend/resume cycle

Andrew Morton
2009-12-07T19:51:30Z

(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Fri, 4 Dec 2009 09:02:21 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=14730
>
> Summary: sky2 won't work after suspend/resume cycle
> Product: Power Management
> Version: 2.5
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: high
> Priority: P1
> Component: Hibernation/Suspend
> AssignedTo: power-management_other@kernel-bugs.osdl.org
> ReportedBy: mat@esi.com.pl
> Regression: Yes
>
>
> I use sky2 network adapter in my Fujitsu Siemens Esprimo Mobile U9200. It
> worked fine up until 2.6.31-rc3 (or at least that's the last one I tried it
> works for me) and in all versions after that I tried it stops working after
> suspend/resume cycle (I use powersave daemon, but I also tried without it -
> effect is the same).
>
> After resume what I see in dmesg is this:
>
> sky2 driver version 1.23
> sky2 0000:04:00.0: enabling device (0000 -> 0003)
> sky2 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> sky2 0000:04:00.0: setting latency timer to 64
> sky2 0000:04:00.0: unsupported chip type 0xff

It looks like reads from the device are returning all-ones.

> sky2 0000:04:00.0: PCI INT A disabled
> sky2: probe of 0000:04:00.0 failed with error -95
>
> So it looks like something is probably not restored correctly after resume or
> some initializations are not executed.
>
> I use Gentoo sources, but I also tried it on vanilla kernels - 2.6.31 and
> 2.6.32-rc8 and it doesn't work in any version past 2.6.31-rc3.
>

Help. Do we think this regression is likely to be a sky2 thing, an
ACPI thing, an x86 arch thing or...?

Thanks.