EXT4-fs (loop0): Block reservation details EXT4-fs (loop0): i_reserved_data_blocks=1 ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2560! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 6716 Comm: syz-executor.0 Not tainted 6.6.0-rc3-syzkaller-00011-gbf6547d8715b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_do_writepages+0x354c/0x3670 fs/ext4/inode.c:2559 lr : ext4_do_writepages+0x354c/0x3670 fs/ext4/inode.c:2559 sp : ffff8000974f6f60 x29: ffff8000974f72a0 x28: ffff8000974f7320 x27: dfff800000000000 x26: ffff0000e7d216b0 x25: 1fffe00018d170c5 x24: ffff0000c63a6000 x23: ffff700012e9ee28 x22: ffff8000974f7140 x21: 1fffe0001cfa431b x20: 0000004210000000 x19: 0000000000000001 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008031d414 x15: 0000000000000005 x14: 1ffff00012e9ee44 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff0000d6cd5340 x7 : 0000000000000000 x6 : 0000000000000080 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000004000000000 x0 : 0000000000000000 Call trace: ext4_do_writepages+0x354c/0x3670 fs/ext4/inode.c:2559 ext4_writepages+0x198/0x330 fs/ext4/inode.c:2764 do_writepages+0x2e8/0x570 mm/page-writeback.c:2553 filemap_fdatawrite_wbc+0x124/0x174 mm/filemap.c:390 __filemap_fdatawrite_range mm/filemap.c:423 [inline] file_write_and_wait_range+0x1bc/0x2ac mm/filemap.c:781 generic_buffers_fsync_noflush+0x78/0x174 fs/buffer.c:609 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline] ext4_sync_file+0x3d0/0xbcc fs/ext4/fsync.c:151 vfs_fsync_range+0x168/0x188 fs/sync.c:188 generic_write_sync include/linux/fs.h:2584 [inline] ext4_buffered_write_iter+0x450/0x4ec fs/ext4/file.c:305 ext4_file_write_iter+0x184/0x17bc call_write_iter include/linux/fs.h:1956 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x628/0x93c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: 17fff33d 97d99e13 17fffe09 97d99e11 (d4210000) ---[ end trace 0000000000000000 ]---