[Users] Lots of interrupts since latest el6 kernel

[Karl Johnson]

Hello,

I've upgraded from 2.6.32-042stab133.2 to 2.6.32-042stab138.1 and since
boot, 2 cores are using 100% cpu on ksoftirqd:

root          21 99.9  0.0      0     0 ?        R    May29 1178:07  \_
[ksoftirqd/4]
root          25 99.9  0.0      0     0 ?        R    May29 1177:51  \_
[ksoftirqd/5]

>From /proc/interrupts I can see that it's caused by IR-IO-APIC-edge
 timer:

           CPU0       CPU1       CPU2       CPU3       CPU4       CPU5
  CPU6       CPU7
  0:     136922     103603      26928      27528  112318229   71888343
 73755     285735  IR-IO-APIC-edge      timer

kernel /vmlinuz-2.6.32-042stab138.1 ro
root=UUID=7367aa0f-8216-44ca-9cc4-affed22bbd9c rd_NO_LUKS rd_NO_LVM
LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
 KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM nohz=off nopti

Any way to troubleshoot this? Is it a known issue?

Karl
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