gitlab-ci: detect a3xx gpu hang recovery failure

But don't bail immediately, instead print out some more lines after the
hang, hopefully catching info about the cause of the hang.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14033>

.gitlab-ci/bare-metal/fastboot_run.py

@@ -70,7 +70,13 @@ class FastbootRun:
         if self.logged_system(self.fastboot) != 0:
             return 1
 
+        print_more_lines = -1
         for line in self.ser.lines():
+            if print_more_lines == 0:
+                return 2
+            if print_more_lines > 0:
+                print_more_lines -= 1
+
             if re.search("---. end Kernel panic", line):
                 return 1
 
@@ -92,6 +98,18 @@ class FastbootRun:
                     "Detected network device failure, restarting run...")
                 return 2
 
+            # A3xx recovery doesn't quite work. Sometimes the GPU will get
+            # wedged and recovery will fail (because power can't be reset?)
+            # This assumes that the jobs are sufficiently well-tested that GPU
+            # hangs aren't always triggered, so just try again. But print some
+            # more lines first so that we get better information on the cause
+            # of the hang. Once a hang happens, it's pretty chatty.
+            if "[drm:adreno_recover] *ERROR* gpu hw init failed: -22" in line:
+                self.print_error(
+                    "Detected GPU hang, restarting run...")
+                if print_more_lines == -1:
+                    print_more_lines = 30
+
             result = re.search("hwci: mesa: (\S*)", line)
             if result:
                 if result.group(1) == "pass":