Re: [linux-pm] 2.6.37-rc5, pata_atiixp, DVD-ROM: kernel log flooded with "rpm_resume flags 0x4", "rpm_resume returns 1"

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On Dec 18 Alan Stern wrote:
> On Fri, 17 Dec 2010, Stefan Richter wrote:
> 
> > Well right --- hald polls the card reader for media change too.
> > 
> > I now noticed that the two lines
> > 	sd *:0:0:0: rpm_resume flags 0x4
> > 	sd *:0:0:0: rpm_resume returns 1
> > are logged once for each sd device (i.e. those with fixed media too)
> > at the startup of hald.  Is this expected?
> 
> I don't know anything about the details of hal.  But I do know that you
> can tell hal not to poll certain devices.  Look at "man
> hal-disable-polling".

I wouldn't use hal at all if it weren't for some weak userland
programs that require it.

> > Note, I have not seen anything of the sort on another PC which runs
> > 2.3.37-rc6 with the same PM debug options.  The differences are that
> > the other PC is an Intel 945GM based one with x86-32 kernel and 32bit
> > Gentoo userland, whereas the PC with log spam is an AMD RS780 based one
> > with x86-64 kernel and 64bit Gentoo userland.  Both got hal 0.5.14-r2.
> 
> Maybe CONFIG_DYNAMIC_DEBUG is set differently, or userspace enables 
> dynamic debugging of different subsystems.

Simpler:  I am now noticing that CONFIG_PM_RUNTIME is off on the silent
PC.  It is only on on the PC which produces the log spam.

Good.  Then the solution for me is simply to disable CONFIG_PM_RUNTIME,
which I had switched on for no apparent reason.
-- 
Stefan Richter
-=====-==-=- ==-- =--=-
http://arcgraph.de/sr/
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