Is 3000 entries in pmap for /dev/dri/renderD128 normal, or is Kodi/Mesa leaking a resource?

frakkin64 · May 20, 2021 at 12:09 PM

This seems to be a resource leakage to me, but I am not sure since I am unfamiliar with how this works. Running on an RPi4, LibreELEC 9.95.2, and generally navigating through the library will create additional entries in pmap for /dev/dri/renderD128. Typically they are 4K pages. I believe it is related to thumbnail rendering, but not sure.

Is this normal? They never seem to go away. I tend to start out with ~100, and then after some browsing through the library end up with 2K-3K of these entries in pmap.

Code

00000000a6f9b000     256     256     256       0  rw-s  /dev/dri/renderD128
00000000a6fdb000     256     256     256       0  rw-s  /dev/dri/renderD128
00000000a701b000     256     256     256       0  rw-s  /dev/dri/renderD128
00000000a705b000     256     256     256       0  rw-s  /dev/dri/renderD128
00000000a70ab000      36      36      36       0  rw-s  /dev/dri/renderD128
00000000a70b4000      36      36      36       0  rw-s  /dev/dri/renderD128
00000000a70c7000      36      36      36       0  rw-s  /dev/dri/renderD128
00000000a70d0000      36      36      36       0  rw-s  /dev/dri/renderD128
00000000a70d9000      36      36      36       0  rw-s  /dev/dri/renderD128
00000000a7228000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7229000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a722a000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a722f000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7236000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7237000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7238000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7239000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a723a000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a723b000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a723c000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a723d000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a723e000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7240000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7241000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7242000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7243000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7249000      32      32      32       0  rw-s  /dev/dri/renderD128
00000000a7270000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7287000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7288000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7292000      12      12      12       0  rw-s  /dev/dri/renderD128
00000000a7295000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7296000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7297000       4       4       4       0  rw-s  /dev/dri/renderD128
00000000a7298000      12      12      12       0  rw-s  /dev/dri/renderD128

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