On 31/07/15 17:43, Bryan O'Donoghue wrote: > On 31/07/15 17:36, Ilia Mirkin wrote: >> Do you have a reproducible way of achieving the multiple buffer on >> validation list thing?
Reliable enough. Start Chrome, then get Chrome to open a menu on top of it's own screen - for example click the top right menu bar - the thing with the three horizontal bars, scroll down to 'recent tabs' and let the mouse hover. You'll get a menu that opens up over the main chrome screen and at that point you'll also get a 'multiple instances of buffer' Basically drawing one window on top of another inside of the same Chrome tab. I guess the same PID is mapping the same piece of memory twice because if I open a seperate Chrome window (which will have a seperate PID) and drag one window over the other we don't see a repeat. If it helps deckard at aineko:~$ dmesg | tail -n 5 [ 6900.249427] nouveau E[chrome[3176]] multiple instances of buffer 456 on validation list [ 6920.992475] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 6934.277352] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 6994.303600] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 7067.436049] nouveau E[chrome[3176]] multiple instances of buffer 456 on validation list deckard at aineko:~$ ps -ax | grep chrome | grep 3176 3176 pts/6 Sl+ 0:29 /opt/google/chrome/chrome --type=gpu-process --channel=3143.0.1295591 ives-passed-by-fd --v8-snapshot-passed-by-fd --supports-dual-gpus=false --gpu-driver-bug-workarounds=2,29,32,45,55,57 --disable-accelerated-video-decode --gpu-vendor-id=0x10de --gpu-device-id=0x0fe9 --gpu-driver-vendor --gpu-driver-version --v8-natives-passed-by-fd --v8-snapshot-passed-by-fd > What GPU do you have? (Looking for a codename, >> not a marketing name... lspci should have it... GFxxx or GKxxx or > > 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT > 750M Mac Edition] (rev a1) (prog-if 00 [VGA controller]) > Subsystem: Apple Inc. Device 0130 > Flags: bus master, fast devsel, latency 0, IRQ 45 > Memory at c0000000 (32-bit, non-prefetchable) [size=16M] > Memory at 80000000 (64-bit, prefetchable) [size=256M] > Memory at 90000000 (64-bit, prefetchable) [size=32M] > I/O ports at 1000 [size=128] > Expansion ROM at c1000000 [disabled] [size=512K] > Capabilities: [60] Power Management version 3 > Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+ > Capabilities: [78] Express Endpoint, MSI 00 > Capabilities: [b4] Vendor Specific Information: Len=14 <?> > Capabilities: [100] Virtual Channel > Capabilities: [128] Power Budgeting <?> > Capabilities: [420] Advanced Error Reporting > Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 > Len=024 <?> > Capabilities: [900] #19 > Kernel driver in use: nouveau > > Macbook pro retina 2014
