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Date: Sun, 17 Jan 2021 07:08:37 +0200 From: Eli Cohen <elic@...dia.com> To: Thomas Zimmermann <tzimmermann@...e.de> CC: <virtualization@...ts.linux-foundation.org>, <linux-kernel@...r.kernel.org>, <daniel.vetter@...ll.ch>, <christian.koenig@....com>, <sam@...nborg.org>, dri-devel <dri-devel@...ts.freedesktop.org> Subject: Re: Change eats memory on my server On Fri, Jan 15, 2021 at 10:03:50AM +0100, Thomas Zimmermann wrote: > > Could you please double-check that 3fb91f56aea4 ("drm/udl: Retrieve USB > device from struct drm_device.dev") works correctly Checked again, it does not seem to leak. > and that 823efa922102 > ("drm/cma-helper: Remove empty drm_gem_cma_prime_vunmap()") is broken? > Yes, this one leaks, as does the one preceding it: 1086db71a1db ("drm/vram-helper: Remove invariant parameters from internal kmap function") > For one of the broken commits, could you please send us the output of > > dmesg | grep -i drm > > after most of the memory got leaked? > I ran the following script in the shell: while true; do cat /proc/meminfo | grep MemFree:; sleep 5; done and this is what I saw before I got disconnected from the shell: MemFree: 148208 kB MemFree: 148304 kB MemFree: 146660 kB Connection to nps-server-24 closed by remote host. Connection to nps-server-24 closed. I also mointored the output of dmesg | grep -i drm The last output I was able to save on disk is this: [ 46.140720] ast 0000:03:00.0: [drm] Using P2A bridge for configuration [ 46.140737] ast 0000:03:00.0: [drm] AST 2500 detected [ 46.140754] ast 0000:03:00.0: [drm] Analog VGA only [ 46.140772] ast 0000:03:00.0: [drm] dram MCLK=800 Mhz type=7 bus_width=16 [ 46.153553] [drm] Initialized ast 0.1.0 20120228 for 0000:03:00.0 on minor 0 [ 46.165097] fbcon: astdrmfb (fb0) is primary device [ 46.391381] ast 0000:03:00.0: [drm] fb0: astdrmfb frame buffer device [ 56.097697] systemd[1]: Starting Load Kernel Module drm... [ 56.343556] systemd[1]: modprobe@....service: Succeeded. [ 56.350382] systemd[1]: Finished Load Kernel Module drm. [13319.469462] [ 2683] 70889 2683 55586 0 73728 138 0 tdrm [13320.658386] [ 2683] 70889 2683 55586 0 73728 138 0 tdrm [13321.800970] [ 2683] 70889 2683 55586 0 73728 138 0 tdrm
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