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kernel BUG at fs/ext4/inode.c:2816!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6279 Comm: kworker/u8:10 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: writeback wb_workfn (flush-7:9)
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ext4_do_writepages+0x38a8/0x38ac fs/ext4/inode.c:2815
lr : ext4_do_writepages+0x38a8/0x38ac fs/ext4/inode.c:2815
sp : ffff8000938e6d40
x29: ffff8000938e7100 x28: ffff0000f29429a8 x27: dfff800000000000
x26: 1ffff0001271cea8 x25: ffff70001271cde0 x24: 1fffe0001e528492
x23: ffff70001271ce2c x22: ffff0000f2942490 x21: ffff0000c8f18000
x20: 0000004210000000 x19: ffff0000c15a2dc0 x18: 0000000000000000
x17: ffff8001254c8000 x16: ffff80008ea90000 x15: ffff800080d62df8
x14: 0000000000000001 x13: 0000000000000001 x12: 0000000000000003
x11: 1fffe000182b45be x10: 0000000004248060 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff800080d61798
x5 : ffff000124d53bc8 x4 : 00000000ffffffff x3 : ffff800080fff434
x2 : 0000004000000000 x1 : ffff0000f18dbb00 x0 : 0000000000000000
Call trace:
 ext4_do_writepages+0x38a8/0x38ac fs/ext4/inode.c:2815 (P)
 ext4_writepages+0x198/0x2dc fs/ext4/inode.c:3032
 do_writepages+0x284/0x47c mm/page-writeback.c:2560
 __writeback_single_inode+0x144/0x1634 fs/fs-writeback.c:1788
 writeback_sb_inodes+0x790/0x15f4 fs/fs-writeback.c:2099
 wb_writeback+0x3bc/0xd40 fs/fs-writeback.c:2284
 wb_do_writeback fs/fs-writeback.c:2452 [inline]
 wb_workfn+0x318/0xc78 fs/fs-writeback.c:2497
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
Code: aa1303e0 97c29e5c d4210000 97d8e1ef (d4210000) 
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