On Fri, Apr 07, 2017 at 11:34:34AM +0300, Ander Conselvan de Oliveira wrote:
> The function igt_debugfs_open() would not close the debugfs dir before
> returning. Tests that do a lot of pipe CRC comparaions, such as
> kms_cursor_crc, would eventually fail.
>
> (kms_cursor_crc:3853) igt-debugfs-CRITICAL: Test assertion failure function
> igt_pipe_crc_do_start, file igt_debugfs.c:387:
> (kms_cursor_crc:3853) igt-debugfs-CRITICAL: Failed assertion: err == 0
> (kms_cursor_crc:3853) igt-debugfs-CRITICAL: Last errno: 24, Too many open
> files
> (kms_cursor_crc:3853) igt-debugfs-CRITICAL: error: -24 != 0
Whoops. Also for any test that repeatedly opens a debugfs, please do
move the igt_debugfs_dir() into the caller so we can cache the lookup
inside the fd.
> 83884e97e187 ("Restore "lib: Open debugfs files for the given DRM device"")
> Cc: Chris Wilson <[email protected]>
> Signed-off-by: Ander Conselvan de Oliveira
> <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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