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-current unusable under load



I just updated my notebook to a newer -current.

It uses

radeon0: info: VRAM: 512M 0x0000000000000000 - 0x000000001FFFFFFF (512M used)
radeon0: info: GTT: 1024M 0x0000000020000000 - 0x000000005FFFFFFF
kern info: [drm] Detected VRAM RAM=200M, BAR=256M
kern info: [drm] RAM width 64bits DDR
Zone  kernel: Available graphics memory: 1124698 kiB
kern info: [drm] radeon: 512M of VRAM memory ready
kern info: [drm] radeon: 1024M of GTT memory ready.
kern info: [drm] Loading CEDAR Microcode
kern info: [drm] Internal thermal controller without fan control
kern info: [drm] radeon: dpm initialized
kern info: [drm] GART: num cpu pages 262144, num gpu pages 262144
kern info: [drm] PCIE GART of 1024M enabled (table at 0x000000000025E000).

...


and it is unusable under load. I have seen the X server being killed by UVM
due to memory shortage twice in half an hour now. This never happened
with the old kernel from Oct 13.

This might be a side effect of the load being too high due to bugs in
the pkgsrc firefox build system, but I am not sure the memory preasure
really is that much higher.

We *really* need to do something about it.

Martin


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