21-Aug-2026 01:12:49: building syzkaller on 1c8c8cd830af4deee250ad11f1613d1d9a62ca0b... 21-Aug-2026 01:14:27: fetching kernel... 21-Aug-2026 01:14:29: checked out kernel commit 0eb903b5b519d037c723d47a58c5d4f20eed7342 ("Linux 5.15.216", 2026-08-19 17:14:18 +0200 +0200) 21-Aug-2026 01:14:29: cleaning kernel... 21-Aug-2026 01:14:30: building kernel... 21-Aug-2026 01:20:27: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 21-Aug-2026 01:20:27: testing patch... 21-Aug-2026 01:26:13: reproduced crash: BUG: sleeping function called from invalid context in f2fs_register_inmem_page