27-Sep-2026 18:13:32: building syzkaller on 853b104bb454141a5b0fc0e4218ec78e9f34ffb1...
27-Sep-2026 18:14:03: fetching kernel...
27-Sep-2026 18:14:05: checked out kernel commit efb44d93a620c294c049db37c810c8ab7ee1122d ("Merge tag 'x86-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip", 2026-09-27 08:44:12 -0700 -0700)
27-Sep-2026 18:14:05: cleaning kernel...
27-Sep-2026 18:14:06: building kernel...
27-Sep-2026 18:19:49: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
27-Sep-2026 18:19:49: testing patch...
27-Sep-2026 18:28:29: reproduced crash: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping