EXT4-fs warning (device sda1): ext4_group_extend:1731: can't shrink FS - resize aborted ------------[ cut here ]------------ WARNING: CPU: 0 PID: 29080 at fs/ext4/ext4_jbd2.c:266 __ext4_handle_dirty_metadata+0x3e9/0x4c0 fs/ext4/ext4_jbd2.c:266 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 29080 Comm: syz-executor3 Not tainted 4.9.131+ #50 ffff8801c8c5f620 ffffffff81b37029 ffffffff82a38c20 00000000ffffffff 0000000000000000 0000000000000000 000000000000010a ffff8801c8c5f6e0 ffffffff813f6b25 0000000041b58ab3 ffffffff82e298d3 ffffffff813f6966 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x39f kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] __ext4_handle_dirty_metadata+0x3e9/0x4c0 fs/ext4/ext4_jbd2.c:266 [] write_end_fn+0x71/0xa0 fs/ext4/inode.c:1310 [] ext4_walk_page_buffers+0x9c/0x1a0 fs/ext4/inode.c:1030 [] ext4_journalled_write_end+0x311/0x1230 fs/ext4/inode.c:1464 [] generic_perform_write+0x34c/0x500 mm/filemap.c:2764 [] __generic_file_write_iter+0x352/0x540 mm/filemap.c:2878 [] ext4_file_write_iter+0x63d/0xd70 fs/ext4/file.c:165 [] new_sync_write fs/read_write.c:496 [inline] [] __vfs_write+0x3d7/0x580 fs/read_write.c:509 [] vfs_write+0x187/0x520 fs/read_write.c:557 [] SYSC_write fs/read_write.c:604 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:596 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..