In addition to CONTROL_HD_POWERMGMT, there are two other hdparm settings that may be set: CONTROL_HD_IDLE_TIMEOUT and CONTROL_HD_WRITECACHE, and of these, CONTROL_HD_IDLE_TIMEOUT is also set by default. I don't think this problem is limited only to APM calls, but that any hdparm calls contribute to triggering it.
You shouldn't need to patch your kernel to get a trace of apm calls, though; a simple wrapper script should do the job: $ sudo dpkg-divert --add --local --rename /sbin/hdparm $ cat | sudo tee /sbin/hdparm #!/bin/sh echo "called with args: $@" >> /var/log/hdparm.log exec /sbin/hdparm.distrib "$@" ^D $ sudo chmod a+x /sbin/hdparm $ This should give you a log in /var/log/hdparm.log showing every invocation of hdparm on the system. -- Samsung NC10 fails suspend/Resume tests https://bugs.launchpad.net/bugs/340014 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
