[Intel-gfx] [PATCH igt 2/2] igt/debugfs_tests: Record which file is being opened in kmsg

[Chris Wilson]

Quoting Tvrtko Ursulin (2017-12-06 16:51:24)
> 
> On 06/12/2017 16:38, Chris Wilson wrote:
> > When tracking down the cause of a particular kernel warning, knowing
> > which file it is associated with can be a big clue. So write the
> > filename into the kernel message log prior to opening it.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > ---
> >   tests/debugfs_test.c | 3 ++-
> >   1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tests/debugfs_test.c b/tests/debugfs_test.c
> > index 268d6e78f..2e87e4420 100644
> > --- a/tests/debugfs_test.c
> > +++ b/tests/debugfs_test.c
> > @@ -61,8 +61,9 @@ static void read_and_discard_sysfs_entries(int path_fd, int indent)
> >                       int sub_fd;
> >                       ssize_t ret;
> >   
> > -                     igt_set_timeout(5, "reading sysfs entry");
> > +                     igt_kmsg(KMSG_DEBUG "Reading file \"%s\"\n", dirent->d_name);
> >                       igt_debug("%sReading file \"%s\"\n", tabs, dirent->d_name);
> > +                     igt_set_timeout(5, "reading sysfs entry");
> >   
> >                       sub_fd = openat(path_fd, dirent->d_name, O_RDONLY);
> >                       if (sub_fd == -1) {
> > 
> 
> If I may suggest an alternative - timestamp igt messages and write a log 
> interleaver to be used with kernel log and igt log as inputs?

How do you get igt_log over netconsole?
-Chris