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Fix for out of sync TSC after sleep/wakeup.

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bgm
Posts: 4
Joined: Sat May 07, 2011 4:27 pm
Location: Washington, DC

Fix for out of sync TSC after sleep/wakeup.

#1 Post by bgm » Sat May 07, 2011 5:34 pm

If you experience video/audio stuttering and/or periodic crashes of different software with EXC_I386_DIV (divide by zero) errors in __gettimeofday() after wakeup, the following might help you.

The original VoodooTSCSync only syncs CPUs once, on system startup. It's not enough for my T60p, which is out of sync on every wakeup. I modified VoodooTSCSync to sync on every power-on event. You can find my patches and a precompiled binary at http://code.google.com/p/voodootscsync/ ... etail?id=1.

Enjoy,
Bgm.

hetkoznap
Posts: 8
Joined: Sun Aug 15, 2010 8:26 am
Location: Budapest, Hungary

Re: Fix for out of sync TSC after sleep/wakeup.

#2 Post by hetkoznap » Sun May 08, 2011 3:30 pm

It works like a charm! Thank you! :thumbs-UP:
SL 10.6.7 100% vanilla S/L/E
Windows 7 Ultimate
IBM Thinkpad T60 1951-PRG

grandflash
Posts: 18
Joined: Thu Jan 29, 2009 11:00 am
Location: Darmstadt, Germany

Re: Fix for out of sync TSC after sleep/wakeup.

#3 Post by grandflash » Wed May 11, 2011 5:29 am

Great, i had this problem over 2 years. Thank you!!!!!!!!!!!!!
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Lenovo X61t
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MacOSX 10.7.3 (DSDT patch)

Anastasius
Sophomore Member
Posts: 140
Joined: Fri Feb 29, 2008 2:16 am
Location: Moscow, Russia

Re: Fix for out of sync TSC after sleep/wakeup.

#4 Post by Anastasius » Wed May 11, 2011 9:56 am

It seems I had this problem too (but never noticed it :)
My X61 is now faster after wakeup and NOW that's noticeable!! Great! Thank you :banana:
Mac OS X 10.6.7, 10.6.8 and 10.7.2 Lion on X61 7767 tablet.

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