*** This bug is a duplicate of bug 1417580 *** https://bugs.launchpad.net/bugs/1417580
Whenever facing NMIs on Proliant Servers check NMI code under ILO: Translate the code: 00h (0x00000000) No source found 01h (0x00000001) Uncorrectable Memory Error 1Bh (0x0000001B) ASR NMI 20h (0x00000020) PCI Parity Error 27h (0x00000027) NMI Button Press 28h (0x00000028) SB_BUS_NMI 29h (0x00000029) ILO Doorbell NMI 2Ah (0x0000002A) ILO IOP NMI 2Bh (0x0000002B) ILO Watchdog NMI 2Ch (0x0000002C) Proc Throt NMI 2Dh (0x0000002D) Front Side Bus NMI 2Fh (0x0000002F) PCI Express Error 30h (0x00000030) DMA controller NMI 31h (0x00000031) Hypertransport/CSI Error If you are getting something like: "76 CriticalSystem Error03/12/2015 12:4203/12/2015 12:072 An Unrecoverable System Error (NMI) has occurred (System error code 0x0000002B, 0x00000000)" You are facing a ILO Watchdog NMI meaning that you triggered the ILO watchdog countdown and it has not been updated for sometime. HPWDT triggers the ILO Watchdog countdown whenever /dev/watchdog is opened (like corosync/pacemer do, for example) and ILO will send NMIs after the watchdog has zerod (not updating ILO timer properly, for example). Workaround (other than using the HP-ASRD daemon that frequently updates the counter) is to blacklist hpwdt module: # echo "blacklist hpwdt" >> /etc/modprobe.d/blacklist-hp.conf # update-initramfs -k all -u # upgrade-grub # reboot Give feedback please. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1318551 Title: Kernel Panic - not syncing: An NMI occurred, please see the Integrated Management Log for details. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1318551/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs