Re: Uhhuh - Dazed and confused, but trying to continue :)
On 19.01.2015 14:49, Don Zickus wrote: On Sun, Jan 18, 2015 at 11:50:38AM +0100, poma wrote: Salutem This happened only on thaw from S4 aka hibernate. What should be strange power saving mode these messages relate!? [ 208.252986] Uhhuh. NMI received for unknown reason 3d on CPU 0. [ 208.252991] Do you have a strange power saving mode enabled? [ 208.252992] Dazed and confused, but trying to continue 3.18.3-200.fc21.x86_64 This looks to be an external unknown NMI (unless you can reproduce on something other than cpu0). I would have to know what hardware you have and see the dmesg log after the resume from hibernate. You can open a bz and assign it to me. Just attach the dmesg log, lspci and lspci -t output to the bz. Though this is most likely a pci device firmware problem. But I can try to narrow it down. Cheers, Don Thank you, in the meantime, I've found what causes non-maskable interrupt, [23]d on CPU 0, on resuming S4, on AMD Phenom(tm) II X4 955 Processor. /etc/default/tlp ... # Kernel NMI Watchdog # 0=disable (default, saves power) / 1=enable (for kernel debugging only) NMI_WATCHDOG=0 Toggling to 1, messages no longer appear, NMI_WATCHDOG=1 $ cat /proc/sys/kernel/nmi_watchdog 1 $ sysctl kernel.watchdog kernel.watchdog = 1 Isn't it brilliant. ___ kernel mailing list kernel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/kernel
Re: Uhhuh - Dazed and confused, but trying to continue :)
On 21.01.2015 15:24, Don Zickus wrote: On Wed, Jan 21, 2015 at 10:01:32AM +0100, poma wrote: On 19.01.2015 14:49, Don Zickus wrote: Thank you, in the meantime, I've found what causes non-maskable interrupt, [23]d on CPU 0, on resuming S4, on AMD Phenom(tm) II X4 955 Processor. /etc/default/tlp ... # Kernel NMI Watchdog # 0=disable (default, saves power) / 1=enable (for kernel debugging only) NMI_WATCHDOG=0 Toggling to 1, messages no longer appear, NMI_WATCHDOG=1 $ cat /proc/sys/kernel/nmi_watchdog 1 $ sysctl kernel.watchdog kernel.watchdog = 1 Isn't it brilliant. Hehe. Ok. All that does is swallow your unknown NMI. But if that makes you happy, I am fine with that. :-) Cheers, Don I don't want to bother you for nothing, as long as nothing crashes, it can pass. Thanks again. ___ kernel mailing list kernel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/kernel
Re: Uhhuh - Dazed and confused, but trying to continue :)
On Sun, Jan 18, 2015 at 11:50:38AM +0100, poma wrote: Salutem This happened only on thaw from S4 aka hibernate. What should be strange power saving mode these messages relate!? [ 208.252986] Uhhuh. NMI received for unknown reason 3d on CPU 0. [ 208.252991] Do you have a strange power saving mode enabled? [ 208.252992] Dazed and confused, but trying to continue 3.18.3-200.fc21.x86_64 This looks to be an external unknown NMI (unless you can reproduce on something other than cpu0). I would have to know what hardware you have and see the dmesg log after the resume from hibernate. You can open a bz and assign it to me. Just attach the dmesg log, lspci and lspci -t output to the bz. Though this is most likely a pci device firmware problem. But I can try to narrow it down. Cheers, Don ___ kernel mailing list kernel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/kernel
Uhhuh - Dazed and confused, but trying to continue :)
Salutem This happened only on thaw from S4 aka hibernate. What should be strange power saving mode these messages relate!? [ 208.252986] Uhhuh. NMI received for unknown reason 3d on CPU 0. [ 208.252991] Do you have a strange power saving mode enabled? [ 208.252992] Dazed and confused, but trying to continue 3.18.3-200.fc21.x86_64 poma ___ kernel mailing list kernel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/kernel
