Is this TSC message trouble? [NO IT IS NOT]

albright · Last edited by albright on Sun Nov 03, 2013 9:21 pm; edited 1 time in total

I noticed in dmesg this:

eccerr0r · Posted: Sun Nov 03, 2013 7:45 pm Post subject:

Usually this is a old CPU, possibly old motherboard, or bad BIOS.
This just affects programs that use the TSC as a high resolution timer, which means your timing may not be as accurate as it could be.

System should be fine. Fixing it would require hardware changes most likely, if you're lucky it's a BIOS update.
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platojones · Posted: Sun Nov 03, 2013 8:06 pm Post subject:

I get the same thing on my rather new system (i7 3930K, circa 2011).

It doesn't seem like that big a deal, really just an info message, according to the last message in the thread I've linked below. Just shows the kernel trying one type of clock source, that failing, then successfully using another. I think you can directly specify which type of clock source to use on the grub command line:

https://bbs.archlinux.org/viewtopic.php?pid=1210044

albright · Posted: Sun Nov 03, 2013 9:21 pm Post subject:

thanks for the info and putting my mind at ease
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eccerr0r · Posted: Mon Nov 04, 2013 1:53 am Post subject:

Looks like a lot of i7-39xx have issues with TSC but apparently some do not.

May be just be firmware too, but unless your software explicitly needs the TSC there are other, less accurate ways to get timing information (HPET, ACPI, Legacy timer if all else fails.)
_________________
Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?