-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 11/19/2014 12:15 PM, Rasmus Liland wrote: > On 2014-11-17 00:19, Rasmus Liland wrote: >> On 2014-11-15 18:28, Mark Lee wrote: >>> On 11/15/2014 12:20 PM, Rasmus Liland wrote: >>>> On 2014-11-15 15:21, LoneVVolf wrote: >>>>> On 15-11-14 06:57, Rasmus Liland wrote: >>>>>> On 2014-11-15 06:10, Mark Lee wrote: >>>>>>> On 11/14/2014 10:29 PM, Rasmus Liland wrote: >>>>>>>> On 2014-11-15 04:01, Mark Lee wrote: >>>>>>>>> Are you booting with the new intel u-code? >>>>>>>> Are you fairly sure this is a Intel microcode issue? >>>>>>> I'm not completely certain; but it would make sense. >>>>>>> I'd test it out. >>>>>> Thank you for your help thus far. I'll examine this >>>>>> further tomorrow, g'night. >>>>> From rasmus first post: >>>>>> I'm experiencing machine check exceptions since every >>>>>> kernel after package linux-3.11.5-1 (Oct 14 2013) >>>>> New intel microcode was only introduced with kernel 3.17 >>>>> ... It's unlikely to have to do with this issue. >>>>> >>>>> install mcelog, run it as the log tells you and post the >>>>> result. >>>> [ ... output, see previous messages ... ] I never did use the >>>> mcelog tool before, but to me it looks like not much of an >>>> analysis, perhaps I'm doing it wrong. >>> Looks like a microcode error, please try to add the intel-ucode >>> to your kernel cmdline. >> Bah, just as I was finished enabling syslinux using >> syslinux-install_update and rebooted, the system did not respond, >> just a blank screen and lighting shutting off, then rebooting >> again. >> >> Thus, this system needs an overhaul -- apparently some difficulty >> with the bootcode or the MBR, though I am able to mount the old >> partitions and chroot into them using arch-chroot. >> >> I tried installing grub using the standard method grub-install >> according to the wiki, with little success -- some good news at >> least relevant to previous topic in this thread is that grub >> recognized and added the intel-ucode file I had copied to the >> /boot directory, when running grub-mkconfig. >> >> The plan forward is to forget about generating new mbr using >> gpart and install Debian at the end of the disk to, hopefully, >> restore some boot related stuff that might have come crashing >> down after meddling with syslinux. > > A breakthrough in this thread has happened. > > I ended up taking a backup of the disk to an external hdd using > >> # dd if=/dev/sda of=/mnt/angrist-sda-18nov14.img > > then I booted FreeBSD 10.1 memstick, entered shell and entered some > commands: > >> # gpart delete -i 1 ada0 # gpart delete -i 2 ada0 # gpart delete >> -i 3 ada0 # gpart destroy ada0 # gpart create -s mbr ada0 # gpart >> add -s 20g -t linux-data ada0 # gpart add -t linux-data ada0 > > Then I rebooted into ArchLinux iso memstick to install Arch on the > 20G partition and using the other one as /home. So now Syslinux > works, unfortunately I don't know why. And I was able to install > all new packages including linux 3.17.3-1 and intel-ucode > 20140913-1, loading it in Syslinux according to the wiki. > > I got a new mce after exactly three hours: > >> [10827.051523] mce: [Hardware Error]: CPU 1: Machine Check >> Exception: 5 Bank 4: b200000000100402 Increasing limit for this >> warning to that value arg [10827.051632] mce: [Hardware Error]: >> RIP !INEXACT! 10:<ffffffff81321387> {intel_idle+0xe7/0x180} >> [10827.055440] mce: [Hardware Error]: TSC 2238c73db17 >> [10827.059291] mce: [Hardware Error]: PROCESSOR 0:306a9 TIME >> 1416411506 SOCKET 0 APIC 1 microcode 1b [10827.063192] mce: >> [Hardware Error]: Run the above through 'mcelog --ascii' >> [10827.067078] mce: [Hardware Error]: CPU 3: Machine Check >> Exception: 5 Bank 4: b200000000100402 [10827.070986] mce: >> [Hardware Error]: RIP !INEXACT! 10:<ffffffff81321387> >> {intel_idle+0xe7/0x180} [10827.074899] mce: [Hardware Error]: TSC >> 2238c73db43 [10827.078769] mce: [Hardware Error]: PROCESSOR >> 0:306a9 TIME 1416411506 SOCKET 0 APIC 3 microcode 1b >> [10827.082673] mce: [Hardware Error]: Run the above through >> 'mcelog --ascii' [10827.086569] mce: [Hardware Error]: CPU 2: >> Machine Check Exception: 5 Bank 4: b200000000100402 >> [10827.090503] mce: [Hardware Error]: RIP !INEXACT! >> 10:<ffffffff812ab186> {intel_sqrt+0x36/0x50} [10827.094415] mce: >> [Hardware Error]: TSC 2238c73db28 [10827.098299] mce: [Hardware >> Error]: PROCESSOR 0:306a9 TIME 1416411506 SOCKET 0 APIC 2 >> microcode 1b [10827.102242] mce: [Hardware Error]: Run the above >> through 'mcelog --ascii' [10827.106182] mce: [Hardware Error]: >> CPU 0: Machine Check Exception: 5 Bank 4: b200000000100402 >> [10827.110177] mce: [Hardware Error]: RIP !INEXACT! >> 10:<ffffffff81321387> {intel_idle+0xe7/0x180} [10827.114143] mce: >> [Hardware Error]: TSC 2238c73db06 [10827.118038] mce: [Hardware >> Error]: PROCESSOR 0:306a9 TIME 1416411506 SOCKET 0 APIC 0 >> microcode 1b [10827.122028] mce: [Hardware Error]: Run the above >> through 'mcelog --ascii' [10827.126037] mce: [Hardware Error]: >> Machine check: Processor context corrupt [10827.130076] Kernel >> panic - not syncing: Fatal Machine check [10827.134149] Kernel >> Offset: 0x0 from 0xffffffff81000000 (relocation range: >> 0xffffffff80000000-0xffffffff9fffffff) [10827.136647] >> drm_kms_helper: panic occured, switching back to text console >> [10827.163009] Rebooting in 30 seconds.. [10857.234707] ACPI >> MEMORY or I/O RESET_REG. > > I am also making this output an attachment. There is a lot of more > information in this new mce compared to the other one I sent. > > Perhaps some of you got some new suggestions. > > Meanwhile, I am downgrading back to 3.11.5-1. > To Rasmus, Can you run the parts where it says "run the abvoe through mcelog - --ascii" and post the contents? Regards, Mark -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlRtAEYACgkQZ/Z80n6+J/bSDAD/QULX/4mYDEVfTsiXn2p1PBwx kGcvdIgfTiSwYRMbrz4A/20NYjKeQ6EJPUpdXODgl8kp03CVAVeQknkzxtmZrnlL =mDQq -----END PGP SIGNATURE-----