Ubuntu
linux package

  1. Bug #1505564
  2. Comment #94

Comment 94 for bug 1505564

Revision history for this message
Chris Stratford (chris-gondolin) wrote :

Hi Rafael,

I've been continuing Junien's investigations into this problem. The machines have had all the BIOS and firmware updates I could find on HP's website (although in the case of a DL385-G7 the latest appears to be February 2014!) One of them only lasted a day before crashing again.

So, step 2 was to add "nox2apic intremap=off" to the DL385-G7s. I added it to only one of them initially. That machine lasted 9 days before we had another kernel panic ("NMI watchdog: BUG: soft lockup - CPU#27 stuck for 23s! [migration/27:200]"), but after the panic it seems to have settled back down again (without any reboot).

I've also added "intremap=no_x2apic_optout" to one of the DL360-G8s after it crashed a couple of days ago. So far, it's doing ok.

I''m tempted to try upgrading them to linux-image-generic-lts-wily (currently 4.2.0.18.13) unless there's any information from the current setup that could be useful.