On Thu, 13 Dec 2007, Andrew Morton wrote: > hm, that was all fairly helpful. <looks at the document> <erk, long> > > This: > gives me this: > > http://userweb.kernel.org/~akpm/pc131699.jpg > > which identifies your culprit: msr. > > I'd suggest that the above debug patch be turned into some > boot-option-enabled thing and that it be rolled out with this locking > change for a while at least. Rafael, that looks like exactly the same sort of problem as we saw before. Global searching for CPU_DEAD_FROZEN shows several other places that perhaps also could be simplified; the actions they take may or may not be needed for hibernation. The following three seem definitely dangerous: arch/x86/kernel/cpu/mcheck/mce_64.c arch/x86/kernel/cpuid.c arch/x86/kernel/msr.c And of course the third is the one that Andrew spotted. Would you like to address them? I can package up Andrew's debugging changes into a real patch. Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
