iter3 1-line kernel fix eliminated the OOPS. Now diagnosing why
the 5-control batch (SPS PPS SLICE_PARAMS SCALING_MATRIX
DECODE_PARAMS) returns EINVAL with error_idx=count=5 → all-zero
output.
Locked-in evidence: control sizes match kernel-expected elem_size
for every CID. SPS values strace-decoded to (chroma=1, bit_depth=0,
1280x720) all pass validate_sps numerically. coded_fmt from S_FMT
trace is 1280x720 S265. validate_new dprintk doesn't fire despite
DEV_DEBUG_CTRL=0x20 set → rejection is silent inside
try_or_set_cluster's try_ctrl path (rkvdec_hevc_validate_sps).
Phase 1 starts with empirical: pr_warn at validate_sps entry to
confirm/refute. Instrumented module already built + ready to
load post-reboot.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Markus Fritsche