On Thu, Aug 22, 2013 at 05:38:07PM +0900, Yoshihiro YUNOMAE wrote: > >So, I agree with Eric, let's remove the disable_IO_APIC() stuff and keep > >the code simpler. > > Thank you for commenting about my patch. > I didn't know you already have submitted the patches for this deadlock > problem. > > I can't answer definitively right now that no problems are induced by > removing disable_IO_APIC(). However, my patch should be work well (and > has already been merged to -tip tree). So how about taking my patch at > first, and then discussing the removal of disabled_IO_APIC()? It doesn't matter to me. My orignal patch last year was similar to yours until it was suggested that we were working around a problem which was we shouldn't touch the IO_APIC code on panic. Then I wrote the removal of disable_IO_APIC patch and did lots of testing on it. I don't think I have seen any issues with it (just the removal of disabling the lapic stuff). Regardless, your patch fixes a similar problem we saw on RHEL, so I am happy either way. The removal of the disable_IO_APIC() just makes the code look cleaner. Cheers, Don -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html