[Bug 103167] [CI] igt at kms_frontbuffer_tracking@* - fail - CRC mismatch

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103167

--- Comment #28 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
I don't know about the other failures, but it seems to be a likely kernel bug.

(gdb) print wanted_crc->pipe
$30 = {frame = 499876, has_valid_frame = true, n_words = 5, crc = {1044464,
3225721, 3326078, 8267257, 1803845, 0, 0, 0, 0, 0}}

(gdb) print *(igt_crc_t*)0x5555557d0750
$31 = {frame = 511353, has_valid_frame = true, n_words = 5, crc = {1044464,
1044464, 792567, 1044464, 6966348, 0, 0, 0, 0, 0}}

(Calling drmModeDirtyFB() on the whole fb, and collecting crc again)

(gdb) print *(igt_crc_t*)0x5555557d0750
$34 = {frame = 513283, has_valid_frame = true, n_words = 5, crc = {1044464,
3225721, 3326078, 8267257, 1803845, 0, 0, 0, 0, 0}}

Which is what we want. So guessing a coherency bug?

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