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syzkaller1: entered promiscuous mode
syzkaller1: entered allmulticast mode
BTRFS info (device loop0): scrub: started on devid 1
assertion failed: !folio_test_partial_kmap(folio) :: 0, in fs/btrfs/scrub.c:697
------------[ cut here ]------------
kernel BUG at fs/btrfs/scrub.c:697!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:scrub_stripe_get_kaddr+0x1bb/0x1c0 fs/btrfs/scrub.c:697
Code: 0f 0b e8 28 db d8 fd 48 c7 c7 a0 f3 af 8b 48 c7 c6 e0 05 b0 8b 31 d2 48 c7 c1 60 f4 af 8b 41 b8 b9 02 00 00 e8 c6 18 40 fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3
RSP: 0018:ffffc9000d3971b0 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff88800b540010 RCX: 00fcce84cf1b0900
RDX: ffffc9000e513000 RSI: 0000000000020e45 RDI: 0000000000020e46
RBP: 000000000000000c R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88800b540010 R15: 000000000000000c
FS:  00007f01df2356c0(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b1936b9b0 CR3: 0000000043888000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 scrub_bio_add_sector fs/btrfs/scrub.c:932 [inline]
 scrub_submit_initial_read+0xf21/0x1120 fs/btrfs/scrub.c:1897
 submit_initial_group_read+0x423/0x5b0 fs/btrfs/scrub.c:1952
 queue_scrub_stripe fs/btrfs/scrub.c:2063 [inline]
 scrub_simple_mirror+0x4cd/0x7d0 fs/btrfs/scrub.c:2284
 scrub_stripe+0xa16/0x2a30 fs/btrfs/scrub.c:2449
 scrub_chunk+0x2a3/0x430 fs/btrfs/scrub.c:2575
 scrub_enumerate_chunks+0xa70/0x1350 fs/btrfs/scrub.c:2839
 btrfs_scrub_dev+0x6e7/0x10e0 fs/btrfs/scrub.c:3153
 btrfs_ioctl_scrub+0x249/0x4b0 fs/btrfs/ioctl.c:3163
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f01de38eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f01df235038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f01de5e6090 RCX: 00007f01de38eec9
RDX: 0000200000000000 RSI: 00000000c400941b RDI: 000000000000000c
RBP: 00007f01de411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f01de5e6128 R14: 00007f01de5e6090 R15: 00007fff9d828428
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:scrub_stripe_get_kaddr+0x1bb/0x1c0 fs/btrfs/scrub.c:697
Code: 0f 0b e8 28 db d8 fd 48 c7 c7 a0 f3 af 8b 48 c7 c6 e0 05 b0 8b 31 d2 48 c7 c1 60 f4 af 8b 41 b8 b9 02 00 00 e8 c6 18 40 fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3
RSP: 0018:ffffc9000d3971b0 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff88800b540010 RCX: 00fcce84cf1b0900
RDX: ffffc9000e513000 RSI: 0000000000020e45 RDI: 0000000000020e46
RBP: 000000000000000c R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88800b540010 R15: 000000000000000c
FS:  00007f01df2356c0(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005580b88835f8 CR3: 0000000043888000 CR4: 0000000000352ef0