Ubuntu
linux package

  1. Bug #1690085
  2. Comment #270

Comment 270 for bug 1690085

Revision history for this message
In , kernel (kernel-linux-kernel-bugs) wrote :

I have Ryzen 7 1800X, ASUS Prime X370-PRO, with CPU replaced by AMD.

The damn thing has not worked properly since I bought it.

I have: kernel 4.14.18-300.fc27
        CONFIG_RCU_NOCB_CPU=y
        rcu-nocbs=0-15

I have seen streams of "watchdog: BUG: soft lockup", but mostly the system just stops and I can find no logging that tells me why.

Currently I find the machine has stopped over night (when it is idle), every two or three days.

I have just installed kernel 4.15.3-300.fc27. But I can find nothing to suggest that this fault is understood, let alone fixed.

I have just added processor.max_cstate=5 -- though I have failed to find any way to check what difference that has made.

So: is the "work-around" still the only available solution ?

[FWIW, while the AMD CPU went through the RMA process, I bought an Intel Coffee Lake i7-8700K machine. Will I buy another AMD ? I doubt it.]