On Sunday 26 January 2025 20:18:57 Greenwich Mean Time Grant Edwards wrote: > On 2025-01-26, Daniel Frey <djqf...@gmail.com> wrote: > > I had a problem with two of my Ryzen systems that exhibited this > > behaviour. One has a G processor, the other doesn't > > > > Apparently Ryzen processors have an idle bug that locks up the > > system in this way. The bugs manifests randomly when the CPU is > > idle. For me, if I left the PC on overnight it would always be hung > > up the next morning. It would also trigger if I started a long > > emerge and forgot about it - it would idle enough it would hang. > > And that only hung user-space stuff? > > I can still ping mine when it's frozen, and the SysRq key works > (except for commands to do with the framebuffer console). Ssh doesn't > work and Ctrl-Alt-Fx doesn't work. > > > I had to update the BIOS on both machines, then change the "Power Supply > > Idle Control" to "Typical Current Idle". Any other setting and the bug > > manifests. Note this setting is for Asus motherboards; I would imagine > > other manufacturers have a similar setting but it may be named > > differently. > > > > I did test it, I left both my PCs on for over 48 hours and no lockup. > > I don't think this is the same. My machine never locked up when idle. > > It was always when doing something like resizing an X11 window. I > could let it sit idle for days (either at the console prompt or with > X11 screen-saver active and a blanked screen). I could do anything I > wanted remotely via ssh. It only seemed to lock up when I was doing > something in X11. It didn't have to be _much_ in X11 (didn't need to > be rendering video or 3D gaming). Just working with xemacs and xterms > seemed to be enough (though I probably had a Thunderbird window > sitting idle/iconified and a chrome window showing some > documentation). > > Yesterday I downgraded mesa from 24.3.3 to 24.2.8, and it hasn't > frozen since -- though I also haven't been using it a lot since the > downgrade. If make it through a day of work tomorrow without a > lockup, then I'm going to blame mesa. During a normal work day last > week it would usually freeze a half-dozen times. > > -- > Grant
I have an older AMD system running a wayland desktop, which locks up if I update mesa/xorg in the background and do not restart/reboot after it is done. It tends to lock up with Firefox when moving its window between monitors, or resizing windows in general. It feels a bit random when it may decide to trigger a freeze, but only common denominator is mesa & xorg drivers updates which are not followed through with restarting the session or rebooting the system.
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