Ubuntu
powernap package

  1. Bug #990146
  2. Comment #2

Comment 2 for bug 990146

Revision history for this message
John Reames (jwreames) wrote :

Disabling powernap (chmod 0000 /usr/sbin/powernap*) helps when on AC power, but the system still panics wen the second core spins up from a battery->AC transition.

Problem has existed for a month or so, but thought it was possibly my stsem previously, and more or less worked-around by disabling powernap

This can be reproduced on an affected system by offlining then onlining a CPU.

Uptime does not seem to affect things; this can be induced at hours+ of uptime, or with less than a minute of uptime.

Similar double panic. (First stack trace has identical addresses; second one differs.

System: Lenovo T61p (6459-CTO); T9300, 4GB ram, AR5008E (ath9k), nvidia drivers 295.40.

Both systems are using nvidia drivers. (Possible commonality?)