Re: wired memory leak?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Oct 31, 2026 at 01:43:31PM +0000, RVP wrote:
> On Fri, 30 Oct 2026, Greg Troxel wrote:
> 
> > I started logging wired memory pages and overnight exited firefox.  The
> > data is pretty clear: no firefox running and wired pages are stable;
> > with firefox running they grow, irregularly.
> > 
> 
> I don't think it's just Firefox. Wired usage increases by 10MB each time ESC is
> pressed:
> 
> ```
> while :; do glxgears -fullscreen; sleep 1; done
> ```
> 
> This is on an Intel Ice Lake GT1 integrated GPU with the `modesetting' Xorg
> driver. With the `wsfb' DDX, Firefox wired totals are stable (~9MB).

I can't reproduce this on my laptop (I don't have physical 
access to my workstation in the next 2 weeks). wired memory increase by about
40Mb when glxgears is running but goes back to the original value when
glxgears exits.


My laptop has this CPU:
cpu0: "Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz"
cpu0: Intel 7th or 8th gen Core (Kaby Lake, Coffee Lake) or Xeon E (Coffee Lake) (686-class), 2712.00 MHz
cpu0: CPU base freq 2700000000 Hz
cpu0: CPU max freq 3100000000 Hz
cpu0: TSC freq CPUID 2712000000 Hz
cpu0: family 0x6 model 0x8e stepping 0x9 (id 0x806e9)

This is the same generation as my workstation, but not exactly the
same graphics. On my workstation:
pchb0 at pci0 dev 0 function 0: Intel Core 8G (S) Host Bridge, DRAM (rev. 0x07)
i915drmkms0 at pci0 dev 2 function 0: Intel UHD Graphics 630 (rev. 0x00)

and on my laptop:
pchb0 at pci0 dev 0 function 0: Intel Core 7G (U) Host Bridge, DRAM (rev. 0x02)
i915drmkms0 at pci0 dev 2 function 0: Intel HD Graphics 620 (GT2) (rev. 0x02)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--