On Thu, May 10, 2012 at 07:06:23AM -0700, Greg KH wrote: > On Thu, May 10, 2012 at 02:03:59PM +0200, maximilian attems wrote: > > From: Suresh Siddha <[email protected]> > > > > With the recent changes to clear_IO_APIC_pin() which tries to > > clear remoteIRR bit explicitly, some of the users started to see > > "Unable to reset IRR for apic .." messages. > > > > Close look shows that these are related to bogus IO-APIC entries > > which return's all 1's for their io-apic registers. And the > > above mentioned error messages are benign. But kernel should > > have ignored such io-apic's in the first place. > > > > Check if register 0, 1, 2 of the listed io-apic are all 1's and > > ignore such io-apic. > > > > Reported-by: Álvaro Castillo <[email protected]> > > Tested-by: Jon Dufresne <[email protected]> > > Signed-off-by: Suresh Siddha <[email protected]> > > Cc: [email protected] > > Cc: [email protected] > > Cc: Josh Boyer <[email protected]> > > Cc: <[email protected]> > > Link: > > http://lkml.kernel.org/r/[email protected] > > [ Performed minor cleanup of affected code. ] > > Signed-off-by: Ingo Molnar <[email protected]> > > --- > > Compile tested on latest Debian 3.2, got shipped in Fedora 15 3.2. > > > > arch/x86/kernel/apic/io_apic.c | 40 > > ++++++++++++++++++++++++++++++++-------- > > 1 file changed, 32 insertions(+), 8 deletions(-) > > > <formletter> > > </formletter>
This is 73d63d038ee9f769f5e5b46792d227fe20e442c5 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
