Alex,
Have you managed to fix this issue? I'm seeing the same on an Asus X99
Deluxe board with both 5930K and 5960X and the latest BIOS as of today
(0904).
I had some hopes of linux-3.17 working around this but it did not help.
Asus support is disappointing, I don't think they will ever fix this.
A Happy new year to all :)
Just wondering whether anyone has any ideas on how I could force the
TSC to resync?
Starting to get a bit desperate. The motherboard manufacturers support
is useless They keep telling me to install Windows *groan*. I dont
think there is any easy way to expose w
On 2013-12-29 01:35, One Thousand Gnomes wrote:
not guaranteed to be precise. For example a SMI (System Management
Interrupt) could interrupt the software flow that is attempting to
write
the time-stamp counter immediately prior to the WRMSR. This could
mean
the value written to the TSC could
> not guaranteed to be precise. For example a SMI (System Management
> Interrupt) could interrupt the software flow that is attempting to write
> the time-stamp counter immediately prior to the WRMSR. This could mean
> the value written to the TSC could vary by thousands to millions of
> clocks
Alex xor.bz> writes:
[snip quotes]
>
> I suspect the TSC cannot be reset in the manner I just attempted (given
> what was just said above)? I gather this means I am out of luck and
> this is impossible to fix (short of a miracle from my motherboard
> manufacturer).
>
> Alex.
>
Not being a s
Just as a follow up to this, I tried to reset the TSC in tsc-sync.c
with "wrmsrl(MSR_IA32_TSC, 0);" code looks like this:
static void check_tsc_warp(unsigned int timeout)
{
cycles_t start, now, prev, end;
int i;
wrmsrl(MSR_IA32_TSC, 0);
rdtsc_barrier();
s
On Sat, 2013-12-28 at 13:24 +1100, Alex wrote:
> Linux does not write to the TSC since quite a while... which means the
> BIOS is doing that. It really should not.
I saw the same on an Intel server recently, poor thing was stuck with
using HPET.
-Mike
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Hi There,
Firstly, apologies for the length of this post, however there is a bit
of information I need to give so it is clear to everyone
what is happening, what I have tried, and what I am hoping to achieve.
I am having a problem with getting the TSC clocksource to work on my
new system. I h
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