Hey Kimmo, >> you can get the patch here; http://pastebin.com/VG7X5WjK ... it >> applies over 3.14.3-rt5 [after you've already applied the -rt patch, >> you apply it]. It's yielded working AMD Phenom systems for me >> [although, i don't have the exact same H/W as you]. it might be worth >> a try, just to see if it works. > > I can confirm that applying the patch in http://pastebin.com/VG7X5WjK to > 3.14.3-rt5 makes my system bootable even with AMD C1E enabled. > To clarify my previous email, those other tricks "processor.max_cstate=0", > "processor.nocst", etc... did not help. Well, it looks like you are another person who's system is unstable when those 3 upstream -rt patches are applied. Reverting [as you have done now] should result in a usable/stable system for you [its worked for myself and others for a few releases now. Maybe you can post back on how that goes for you?]. Although, depending on config; ie: if you are using no_hz_idle/full you may see "NOHZ: softirq pending 40" [which one of the patches we reverted fixes, IIRC]. Myself, I don't use NO_HZ_* and use the 'periodic timers' in the kernel, instead. anyway, I am not sure how to fix this, beyond reverting / using that patch. I know that some of the devs have had a hard time reproducing the problem - maybe Paul will have better luck on another AMD system [here is hoping]. But at least for now, you should be able to use that patch. jordan > Kimmo >> >> >>> OK, so I never got back to finding a system that could reproduce this, >>> but it sounds like it is still worthwhile; thanks for the reminder and >>> I'll go see if I can reproduce this on a quad since the six core was OK. >> >> Hey Paul, I also forgot to get back to you ;) ... I had been carrying >> over my .config - so i tried using defconfig too [just to see] and it >> was no different. I was astonished that yours booted up just fine, >> because i know of other AMD users [aside from Kimmo] who can't boot on >> vainlla-rt... Again, 3.14.x-rtX boot and work just fine for me, by >> reverting those patches. I had thought maybe -rt5 would boot [it >> looked to have some substantial changes], but alas -rt5 also required >> the patch for a working system. >> >> Jordan >> >>> P. >>> -- >>> >>>> Cheers >>>> Kimmo >>>> >>>>> -- >>>>> To unsubscribe from this list: send the line "unsubscribe >>>>> linux-rt-users" in >>>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>>>> > -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
