From: Dave Airlie airlied@redhat.com
There seems to be a bad interaction between gem/shmem and defio on top, I get list corruption on the page lru in the shmem code.
Turn it off for now until we get some more digging done.
Signed-off-by: Dave Airlie airlied@redhat.com --- drivers/gpu/drm/udl/udl_fb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index c35880f..1eb060c 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -22,9 +22,9 @@
#include <drm/drm_fb_helper.h>
-#define DL_DEFIO_WRITE_DELAY 5 /* fb_deferred_io.delay in jiffies */ +#define DL_DEFIO_WRITE_DELAY (HZ/20) /* fb_deferred_io.delay in jiffies */
-static int fb_defio = 1; /* Optionally enable experimental fb_defio mmap support */ +static int fb_defio = 0; /* Optionally enable experimental fb_defio mmap support */ static int fb_bpp = 16;
module_param(fb_bpp, int, S_IWUSR | S_IRUSR | S_IWGRP | S_IRGRP);