On Wed, 17 Sep 2014, Felix Geyer wrote:
> Please revert the 2.20140913.1ubuntu1 upload.
>
> After loading the new microcode lots of processes die with
> [ 43.611507] traps: systemd[1] trap invalid opcode ip:7f844f84a7ab
> sp:7fff2ccf7e28 error:0 in libpthread-2.19.so[7f844f839000+18000]
> [ 44.201798] traps: dbus-daemon[1277] trap invalid opcode ip:7f848d2f67ab
> sp:7fff8f3c3bb8 error:0 in libpthread-2.19.so[7f848d2e5000+18000]
> [ 44.202077] traps: systemd-logind[1287] trap invalid opcode
> ip:7f8c4bf887ab sp:7fff58f13178 error:0 in
> libpthread-2.19.so[7f8c4bf77000+18000
> [ 44.202101] traps: thermald[1269] trap invalid opcode ip:7fdf60f0c7ab
> sp:7fffa55068e8 error:0 in libpthread-2.19.so[7fdf60efb000+18000]
>
> It's fine after a reboot so it seems to be a problem with upgrading from
> the 2.20140624.1ubuntu1 microcode to 2.20140913.1ubuntu1.
This is bad. And it is a first, too.
IF you can test this safely, could you check what happens when this new
microcode update is applied during boot?
There are two scenarios: early initramfs (available for kernels 3.10 and
above), and normal initramfs.
It would be really helpful to know what happens in both scenarios. You can
select which one will happen by:
WARNING: please have a backup initramfs image (with the previous microcode)
handy, so that you can tell grub to use it instead:
cd /boot
cp <working initramfs> <working initramfs>.safe
After that:
1. edit /etc/default/intel-microcode with a text editor, change the config
to IUCODE_TOOL_INITRAMFS=yes (to test regular initramfs), and
IUCODE_TOOL_INITRAMFS=early (to test early initramfs).
2. regenerate the initramfs, with:
update-initramfs -u
3. reboot
4. check boot logs for badness (trap invalid opcode).
5. change IUCODE_TOOL_INITRAMFS= to the other option, and do pass 2-4
again.
Thank you!
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1370352
Title:
[Feature] Intel new CPU microcode 20140913
To manage notifications about this bug go to:
https://bugs.launchpad.net/intel/+bug/1370352/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
