Comment # 22
on bug 107784
from Dmitrii Tcvetkov
(In reply to Dmitrii Tcvetkov from comment #21) > (In reply to Sylvain BERTRAND from comment #20) > > Roughly, if you have a cpu with a frequency above 4.2GHz (max unsigned > > 32bits), > > linux time subsystem gets broken leading to the timeouts in displayport > > programming. Ofc, my cpu runs at 4.7GHz. > > I hit the bug on AMD FX-9590 machine with RX 580 and 2 displayport monitors. > As for you bisect wasn't successful for me and led me to network merge > commit. > > Looks like you're right! If I downclock the CPU to 4.2 GHz then current > mainline master (f8f65382c98a28e3c2b20) boots fine. Relevant discussion about cf7a63ef4e0203f (x86/tsc: Calibrate tsc only once) http://lkml.iu.edu/hypermail/linux/kernel/1809.0/03226.html
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