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intel_error_decode: First try /sys/drm/card0/error for the error-state

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As the sysfs is almost always mounted and readable, we have a higher
success rate checking for our error state there than in debugfs.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-07 23:41:54 +01:00
parent a285f03f56
commit dbbf2e9b24
1 changed files with 11 additions and 7 deletions
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18
tools/intel_error_decode.c
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@ -504,17 +504,21 @@ main(int argc, char *argv[])
if (argc == 1) {
if (isatty(0)) {
path = "/debug/dri";
path = "/sys/class/drm/card0/error";
error = stat(path, &st);
if (error != 0) {
path = "/debug/dri";
error = stat(path, &st);
}
if (error != 0) {
path = "/sys/kernel/debug/dri";
error = stat(path, &st);
if (error != 0) {
errx(1,
"Couldn't find i915 debugfs directory.\n\n"
"Is debugfs mounted? You might try mounting it with a command such as:\n\n"
"\tsudo mount -t debugfs debugfs /sys/kernel/debug\n");
}
}
if (error != 0) {
errx(1,
"Couldn't find i915 debugfs directory.\n\n"
"Is debugfs mounted? You might try mounting it with a command such as:\n\n"
"\tsudo mount -t debugfs debugfs /sys/kernel/debug\n");
}
} else {
read_data_file(stdin);