kern/99567: [ata] Powerup of sleeping IDE drives causes system reboot.

[brucec at FreeBSD.org]

Synopsis: [ata] Powerup of sleeping IDE drives causes system reboot.

State-Changed-From-To: open->closed
State-Changed-By: brucec
State-Changed-When: Fri Mar 12 23:26:26 UTC 2010
State-Changed-Why: 
HDD APM can cause kernel panics and hangs depending on the ata controller
because the driver wasn't designed to have disks being spun down.
Unfortunately the only workaround is to not run ataidle. In 8.0 and newer
there's a new cam based driver that has built-in support for power management
that should be more reliable.


Responsible-Changed-From-To: freebsd-bugs->brucec 
Responsible-Changed-By: brucec
Responsible-Changed-When: Fri Mar 12 23:26:26 UTC 2010
Responsible-Changed-Why: 
Track.

http://www.freebsd.org/cgi/query-pr.cgi?pr=99567