Ubuntu
linux package

  1. Bug #620074
  2. Comment #648

Comment 648 for bug 620074

Revision history for this message
In , vitaly.v.ch (vitaly.v.ch-linux-kernel-bugs) wrote :

I have successfully reproduce this bug on my HP Z200 under ubuntu 12.04 LTS. After some investigation I found out than main reason of this bug is very ugly bottleneck in block device layer so cores of my Z200 spend almost all time in spinning on spinlock while we have disabled IRQ on ALL cores.