21-Oct-2026 23:40:40: building syzkaller on a4ae4f428721da42ac15f07d6f3b54584dedee27... 21-Oct-2026 23:46:09: fetching kernel... 21-Oct-2026 23:46:11: checked out kernel commit 792fbe1537d8daeca9bd1917e84078b5432aadc2 ("Linux 5.15.223", 2026-10-15 14:14:32 +0200 +0200) 21-Oct-2026 23:46:11: cleaning kernel... 21-Oct-2026 23:46:11: building kernel... 21-Oct-2026 23:52:15: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 21-Oct-2026 23:52:15: testing patch... 22-Oct-2026 00:07:55: reproduced crash: INFO: task hung in lock_extent_bits