XFS (loop2): metadata I/O error in "xfs_alloc_read_agfl+0x174/0x2ec" at daddr 0x3 len 1 error 74
XFS (loop2): page discard on page 000000005166edad, inode 0x2446, offset 30720.
Unable to handle kernel paging request at virtual address dfff800000000039
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000039] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5412 Comm: syz.2.22 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : errseq_set+0x30/0x180 lib/errseq.c:72
lr : errseq_set+0x24/0x180 lib/errseq.c:60
sp : ffff80001fec6d70
x29: ffff80001fec6d70 x28: ffff80001fec6f40 x27: ffff80001fec72b0
x26: fffffc00039d1ac0 x25: fffffc00039d1a88 x24: 1fffff800073a359
x23: dfff800000000000 x22: fffffc00039d1a88 x21: dfff800000000000
x20: 00000000000001c8 x19: 00000000ffffff8b x18: 1fffe0003685718e
x17: 1fffe0003685718e x16: ffff8000082bfa24 x15: ffff8000141eec20

x14: ffff0001b42b8c80 x13: 1ffff0000282a06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : dfff800000000000
x8 : 0000000000000039 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008044a14
x2 : 0000000000000007 x1 : 00000000ffffff8b x0 : 00000000000001c8
Call trace:
 errseq_set+0x30/0x180 lib/errseq.c:72
 __filemap_set_wb_err+0x3c/0x34c mm/filemap.c:730
 mapping_set_error include/linux/pagemap.h:60 [inline]
 iomap_writepage_map fs/iomap/buffered-io.c:1383 [inline]
 iomap_do_writepage+0x1918/0x1c6c fs/iomap/buffered-io.c:1485
 write_cache_pages+0x7c8/0xde4 mm/page-writeback.c:2277
 iomap_writepages+0x6c/0x1f4 fs/iomap/buffered-io.c:1516
 xfs_vm_writepages+0x120/0x17c fs/xfs/xfs_aops.c:488
 do_writepages+0x36c/0x578 mm/page-writeback.c:2386
 filemap_fdatawrite_wbc+0x1d4/0x234 mm/filemap.c:400
 __filemap_fdatawrite_range mm/filemap.c:433 [inline]
 file_write_and_wait_range+0x100/0x1c0 mm/filemap.c:810
 xfs_file_fsync+0x190/0x874 fs/xfs/xfs_file.c:182
 vfs_fsync_range+0x168/0x188 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2989 [inline]
 xfs_file_buffered_write+0x86c/0x99c fs/xfs/xfs_file.c:793
 xfs_file_write_iter+0x2b0/0x5fc fs/xfs/xfs_file.c:833
 do_iter_readv_writev+0x3a0/0x4f8 fs/read_write.c:-1
 do_iter_write+0x1c4/0x670 fs/read_write.c:855
 vfs_writev fs/read_write.c:928 [inline]
 do_pwritev+0x1c8/0x2fc fs/read_write.c:1025
 __do_sys_pwritev2 fs/read_write.c:1084 [inline]
 __se_sys_pwritev2 fs/read_write.c:1075 [inline]
 __arm64_sys_pwritev2+0xd4/0x108 fs/read_write.c:1075
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 9774e1c4 d343fe88 d2d00009 f2fbffe9 (38e96908) 
---[ end trace a9347adfa4b0c149 ]---
----------------
Code disassembly (best guess):
   0:	9774e1c4 	bl	0xfffffffffdd38710
   4:	d343fe88 	lsr	x8, x20, #3
   8:	d2d00009 	mov	x9, #0x800000000000        	// #140737488355328
   c:	f2fbffe9 	movk	x9, #0xdfff, lsl #48
* 10:	38e96908 	ldrsb	w8, [x8, x9] <-- trapping instruction