http://bugzilla.kernel.org/show_bug.cgi?id=13243
Len Brown <len.br...@intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bjorn.helg...@hp.com,
| |len.br...@intel.com
Summary|regression from 2.6.29 : |suspend fails, bisected
|can't suspend on a compaq |2.6.30 regression,
|nc6000, suspend_device(): |pnp_bus_suspend() returns
|pnp_bus_suspend+0x0/0x6b |-5 -- HP Compaq nc6000
|returns -5 |
--- Comment #11 from Len Brown <len.br...@intel.com> 2009-05-08 03:46:47 ---
> serial 00:02: legacy suspend
> ACPI: Transitioning device [C169] to D3
the printk above should actually say "Failed to transition device..."
> serial 00:02: disable failed
> suspend_device(): pnp_bus_suspend+0x0/0x6b returns -5
pnp_bus_suspend is getting -5 back from pnp_stop_dev(),
which is returning -EIO
because pnpacpi_disable_resources()
which evaluates _PS3 (and then _DIS) returns an error.
Before the regression commit, 6328a57401dc5f5cf9931738eb7268fcd8058c49
pnpacpi_disable_resources evaluated _DIS without first evaluating _PS3.
acpi.power_nocheck=1 bypassed the failure
by disabling a sanity check in acpi_bus_set_power()
and acpi_power_off() that verifies that device actually got into D3.
It is possible that the error checking on _PS3 that went
into the final version of the offending commit was really
a mistake and we should continue and evaluate _DIS
even if _PS3 was not verified.
I don't know what the backtrace is about in the
acpi.power_nocheck=1 case -- it may be an additional
unrelated problem.
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