Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! File: /root/memory.events PID: 8230 Comm: syz-executor410 WARNING: CPU: 1 PID: 8234 at fs/ext4/inode.c:3942 ext4_set_page_dirty+0x2a4/0x370 fs/ext4/inode.c:3942 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8234 Comm: syz-executor410 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:ext4_set_page_dirty+0x2a4/0x370 fs/ext4/inode.c:3942 Code: ff e8 40 0f 84 ff 49 8d 5d ff e9 27 fe ff ff e8 32 0f 84 ff 48 c7 c6 e0 54 7a 88 48 89 ef e8 e3 a0 ab ff 0f 0b e8 1c 0f 84 ff <0f> 0b e9 77 ff ff ff e8 10 0f 84 ff 4c 8b 65 08 31 ff 4c 89 e3 83 RSP: 0018:ffff888094c9fc10 EFLAGS: 00010293 RAX: ffff8880b07c2300 RBX: 0000000000000000 RCX: ffffffff81de75ce RDX: 0000000000000000 RSI: ffffffff81de7654 RDI: 0000000000000001 RBP: ffffea00022a2640 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00022a2108 R14: ffffea00022a2108 R15: 0000000000000008 set_page_dirty+0x25f/0x640 mm/page-writeback.c:2569 set_page_dirty_lock+0x81/0xc0 mm/page-writeback.c:2594 xdp_umem_unpin_pages+0x10a/0x3a0 net/xdp/xdp_umem.c:138 xdp_umem_pin_pages net/xdp/xdp_umem.c:228 [inline] xdp_umem_reg net/xdp/xdp_umem.c:322 [inline] xdp_umem_create+0xb60/0xea0 net/xdp/xdp_umem.c:353 xsk_setsockopt+0x491/0x5a0 net/xdp/xsk.c:527 __sys_setsockopt+0x14d/0x240 net/socket.c:2013 __do_sys_setsockopt net/socket.c:2024 [inline] __se_sys_setsockopt net/socket.c:2021 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2021 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f91993bbdb9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f919932b2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f9199444508 RCX: 00007f91993bbdb9 RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000006 RBP: 00007f9199444500 R08: 0000000000000020 R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 00007f919944450c R13: 00007f919941107c R14: 652e79726f6d656d R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..