http://defect.opensolaris.org/bz/show_bug.cgi?id=3468
Chad Mynhier <cmynhier at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|rafael.vanoni at sun.com |cmynhier at gmail.com
Status|NEW |CLOSED
Resolution| |FIXED
--- Comment #1 from Chad Mynhier <cmynhier at gmail.com> 2008-09-20 11:28:01
---
The bug is that powertop wasn't checking the return value of dtrace_status().
A suspend/resume lasting longer than 30 seconds would lead dtrace (on waking)
to assume that the system had become unresponsive, and dtrace would terminate
itself. (This is a safety feature discussed here:
http://blogs.sun.com/jonh/entry/the_dtrace_deadman_mechanism.)
The fix was to check the return value of dtrace_status() and reinitialize the
dtrace stuff if it had died.
For reference, here are the thread on dtrace-discuss and tesla-dev:
http://www.opensolaris.org/jive/thread.jspa?threadID=70608&tstart=0
http://mail.opensolaris.org/pipermail/tesla-dev/2008-September/001330.html
Chad
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