Commit 4eae05f0 authored by Oscar Mateo's avatar Oscar Mateo Committed by Daniel Vetter

tests/gem_close_race: Adapt the test for Full PPGTT

With Full PPGTT, each new fd creates a new context and thus a new
PPGTT, so we have to reduce the number of simultaneous fds or face
OOM problems. For every new PPGTT, its PDEs are stored in the GGTT
which imposes a limit of 1024 new contexts. We want to leave at
least 1/4 of the GGTT available for "important" stuff like scanout
buffers, so never open more than 768 fds.

v2: Unconditionally use the lower limit, as suggested by Daniel
Signed-off-by: default avatarOscar Mateo <>
Signed-off-by: Daniel Vetter's avatarDaniel Vetter <>
parent be14c7bb
......@@ -136,7 +136,7 @@ static void run(int child)
gem_read(fd, handle, 0, &handle, sizeof(handle));
#define NUM_FD 32000
#define NUM_FD 768
struct thread {
pthread_mutex_t mutex;
......@@ -222,7 +222,7 @@ igt_main
igt_subtest("process-exit") {
igt_fork(child, 2000)
igt_fork(child, NUM_FD)
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment