EXT4-fs (loop1): free_blocks=2415919104
EXT4-fs (loop1): dirty_blocks=16
EXT4-fs (loop1): Block reservation details
EXT4-fs (loop1): i_reserved_data_blocks=1
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2861!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 9059 Comm: kworker/u4:5 Not tainted 4.14.300-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: writeback wb_workfn (flush-7:1)
task: ffff88809a03a540 task.stack: ffff888096748000
RIP: 0010:ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2861
RSP: 0018:ffff88809674f5d8 EFLAGS: 00010297
RAX: ffff88809a03a540 RBX: 00000000a802c010 RCX: 1ffff110134076a9
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88809a03b548
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000005050e
R10: ffff88809a03ae18 R11: ffff88809a03a540 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8880896de2b0 R15: ffff88809674fab0
FS:  0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556376848 CR3: 00000000ac029000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0xc3/0x240 mm/page-writeback.c:2361
 __writeback_single_inode+0xda/0x1010 fs/fs-writeback.c:1382
 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645
 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820
 wb_do_writeback fs/fs-writeback.c:1952 [inline]
 wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
Code: ff ff 4c 89 ff e8 95 b5 c3 ff e9 98 db ff ff e8 cb f7 99 ff 48 8b bc 24 b8 00 00 00 e8 7e 5b b1 ff e9 18 f5 ff ff e8 b4 f7 99 ff <0f> 0b e8 ad f7 99 ff 48 8b bc 24 b8 00 00 00 e8 60 5b b1 ff 8b 
RIP: ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2861 RSP: ffff88809674f5d8
---[ end trace 6ea4c7964d31dd21 ]---