Re: lockup when C1E and high-resolution timers enabled

Christoph Fritz
2015-06-14T23:38:45Z

On Sun, 2015-06-14 at 23:24 +0800, Daniel J Blueman wrote:
> val=0x$(setpci -s 00:18.3 0xd4.l) # read D18F3xD4
> val=$((val &~(1 << 13))) # clear bit13 (MTC1eEn)
> setpci -d 1022:1603 0xd4.l=$(printf %x $val) # write back

This slows down the whole system dramatically:

- before: MTC1eEn set: Booting takes 11 secs
- after : MTC1eEn cleared: Booting takes 53 secs