Luis Falcon <[email protected]> writes: > Hi, Greg > On Sat, Nov 07, 2026 at 12:49:58PM -0500, Greg Troxel wrote: >> BLUF: Setting "AccelMethod UXA" in xorg.conf avoids wired page leaks. >> > Thanks for the update. I suppose is a combination of several factors. > > I don't have that option enabled, yet I have not experienced the wired > memory leak issue. Xorg detects / uses Radeon driver.
I realized that while "AccelMethod UXA" avoids the leak, there's confusion underneath that. UXA is a method for the Intel driver, vs SNA that's newer but in theory not 100% baked. The modesetting driver has only one acceleration method, "glamor" (or none), and glamor is default. So, if you ask for "UXA" in modesetting, that's an error, but the result is [ 181.339] (**) modeset(0): glamor disabled so it's really interpreted as "choose accelmethod none, which disables glamor" With UHD 630, modesetting, and glamor disabled, I have no leak. Wired memory increased on starting X and has remained within 12198 to 12285 pages, over 4 days with firefox usage. Looking at all the data in this thread, my current working belief, not rigorously checked, is that for the leak to manifest you need: Intel graphics chip NetBSD 11, not NetBSD 10 modesetting driver glamor enabled and with that, the following chipsets are known to lead to leaks: Intel Haswell Integrated Graphics Device [he] Intel UHD Graphics 630 [gdt bouyer/intel?] Intel Ice Lake GT1 (perhaps "UHD Graphics G1") [RVP] and the following seem not to leak: Intel HD Graphics 620 (GT2) [bouyer/intel?] Radeon 5450 [rhialto] Radeon ? [falcon] Reports of leaking behavior, not clearly the same thing and not clearly not the same thing (there could be two bugs): Ryzen 2400G [patrickgunsolley, unclear which driver] AMD A6 [patrickgunsolley, unclear which driver] However, I'm unclear on if bouyer@ has shown the leak with the intel driver (I get it that it's very hard to keep track of the twisty maze of components) or shown not-leaking with modesetting (laptop). Of course, the This is useful but hard to fully grasp: https://en.wikipedia.org/wiki/Intel_Graphics_Technology My system is an i7-9700 "Intel 7th or 8th gen Core (Kaby Lake, Coffee Lake)" (a 2019 Dell) and dmesg: i915drmkms0 at pci0 dev 2 function 0: Intel UHD Graphics 630 (rev. 0x02) I think my UHD 630 is "Gen 9.5" and RVP's is Gen11.
