WARNING: CPU: 1 PID: 28741 at fs/ext4/inode.c:943 ext4_dio_get_block_overwrite fs/ext4/inode.c:943 [inline]
WARNING: CPU: 1 PID: 28741 at fs/ext4/inode.c:943 ext4_dio_get_block_overwrite+0xb7/0xf0 fs/ext4/inode.c:928
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 28741 Comm: syz-executor.0 Not tainted 5.0.0-rc7-next-20190222 #41
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:ext4_dio_get_block_overwrite fs/ext4/inode.c:943 [inline]
RIP: 0010:ext4_dio_get_block_overwrite+0xb7/0xf0 fs/ext4/inode.c:928
Code: 9f 18 7f ff 84 db 74 1d e8 56 17 7f ff 49 8b 1c 24 31 ff 48 c1 eb 0c 83 e3 01 89 de e8 82 18 7f ff 84 db 74 07 e8 39 17 7f ff <0f> 0b e8 32 17 7f ff 44 89 e8 5b 41 5c 41 5d 41 5e 5d c3 e8 21 17
RSP: 0018:ffff88805367f0c0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005df3000
RDX: 0000000000040000 RSI: ffffffff81f13e57 RDI: 0000000000000001
RBP: ffff88805367f0e0 R08: ffff88804f30c1c0 R09: ffffed1011365302
R10: ffffed1011365301 R11: ffff888089b2980f R12: ffff88805367f280
R13: 0000000000000000 R14: 0000000000000022 R15: ffff888052de8e40
 get_more_blocks fs/direct-io.c:719 [inline]
 do_direct_IO fs/direct-io.c:1004 [inline]
 do_blockdev_direct_IO+0x2689/0x8db0 fs/direct-io.c:1336
 __blockdev_direct_IO+0xa1/0xca fs/direct-io.c:1422
 ext4_direct_IO_write fs/ext4/inode.c:3768 [inline]
 ext4_direct_IO+0x123d/0x1cf0 fs/ext4/inode.c:3895
 generic_file_direct_write+0x20f/0x4b0 mm/filemap.c:3197
 __generic_file_write_iter+0x2ee/0x630 mm/filemap.c:3380
 ext4_file_write_iter+0x346/0x11a0 fs/ext4/file.c:266
 call_write_iter include/linux/fs.h:1857 [inline]
 do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:680
 do_iter_write fs/read_write.c:956 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:937
 vfs_iter_write+0x77/0xb0 fs/read_write.c:969
 iter_file_splice_write+0x662/0xbe0 fs/splice.c:745
 do_splice_from fs/splice.c:847 [inline]
 direct_splice_actor+0x126/0x1a0 fs/splice.c:1019
 splice_direct_to_actor+0x369/0x970 fs/splice.c:974
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
 do_sendfile+0x597/0xd00 fs/read_write.c:1442
 __do_sys_sendfile64 fs/read_write.c:1503 [inline]
 __se_sys_sendfile64 fs/read_write.c:1489 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f56293cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 00008000fffffffe R11: 0000000000000246 R12: 00007f56293ce6d4
R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..