280.13: huge memory leak when switching monitors

[laloch]

I use either nvidia-settings or disper to switch monitors in TwinView configuration. I noticed Xorg leaking heap memory while switching the monitors.

[laloch@uriel ~]$ sudo cat /proc/$(pidof X)/smaps | head -n 75 | tail -n 15
013b8000-02036000 rw-p 00000000 00:00 0                                  [heap]
Size:              12792 kB
Rss:               12588 kB
Pss:               12588 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:     12588 kB
Referenced:        12588 kB
Anonymous:         12588 kB
AnonHugePages:      2048 kB
Swap:                  0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB
[laloch@uriel ~]$ disper -S
[laloch@uriel ~]$ sudo cat /proc/$(pidof X)/smaps | head -n 75 | tail -n 15
013b8000-04152000 rw-p 00000000 00:00 0                                  [heap]
Size:              46696 kB
Rss:               44408 kB
Pss:               44408 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:     44408 kB
Referenced:        44408 kB
Anonymous:         44408 kB
AnonHugePages:      2048 kB
Swap:                  0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB
[laloch@uriel ~]$ disper -s
[laloch@uriel ~]$ sudo cat /proc/$(pidof X)/smaps | head -n 75 | tail -n 15
013b8000-074cc000 rw-p 00000000 00:00 0                                  [heap]
Size:              99408 kB
Rss:               79492 kB
Pss:               79492 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:     79492 kB
Referenced:        79492 kB
Anonymous:         79492 kB
AnonHugePages:     30720 kB
Swap:                  0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB
[laloch@uriel ~]$ disper -S
[laloch@uriel ~]$ sudo cat /proc/$(pidof X)/smaps | head -n 75 | tail -n 15
013b8000-09511000 rw-p 00000000 00:00 0                                  [heap]                                                 
Size:             132452 kB                                                                                                     
Rss:              108096 kB                                                                                                     
Pss:              108096 kB                                                                                                     
Shared_Clean:          0 kB                                                                                                     
Shared_Dirty:          0 kB                                                                                                     
Private_Clean:         0 kB
Private_Dirty:    108096 kB
Referenced:       108096 kB
Anonymous:        108096 kB
AnonHugePages:     53248 kB
Swap:                  0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB