Description of problem: Not sure what it is doing by grub seems to use a lot CPU when it is running. Version-Release number of selected component (if applicable): grub2-2.00 How reproducible: 100% Steps to Reproduce: 1. start grub and press e to edit menu 2. wait and watch CPU and temperature 3. press Ctrl-x Actual results: 2. system uses 1 cpu and temperature rises 3. temperature fails again Expected results: grub should only need a little CPU. Additional info: This is an old bug it has been happening for quite a long time: I think it often causes my old Thinkpad T500 to not reboot due to overheating.
Grub might be a full OS and kernel but it is not yet as feature complete and sophisticated as linux. Is it reasonable to expect it to include power management?
I see, so this is expected behavior?
I could be wrong but I don't think grub1 used 100% cpu.
On my systems, including VMs, grub legacy and grub2 both fully consume one CPU core. So while I don't like it, I don't see the difference in behavior between the two grubs.
Okay fair enough - maybe it is something that could be or has been discussed upstream: probably this bug can be closed then. I will try to pass through grub quickly on my laptop with poor/broken fan to avoid it overheating.
*** Bug 1710242 has been marked as a duplicate of this bug. ***