21-Aug-2026 00:52:33: building syzkaller on cfe3a04a188eb9a2c407783d8d6e6f55a4b30886... 21-Aug-2026 00:59:11: fetching kernel... 21-Aug-2026 00:59:14: checked out kernel commit 0eb903b5b519d037c723d47a58c5d4f20eed7342 ("Linux 5.15.216", 2026-08-19 17:14:18 +0200 +0200) 21-Aug-2026 00:59:14: cleaning kernel... 21-Aug-2026 00:59:15: building kernel... 21-Aug-2026 01:06:50: 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 01:06:50: testing patch... 21-Aug-2026 01:12:21: reproduced crash: BUG: sleeping function called from invalid context in f2fs_register_inmem_page