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kernel BUG at fs/ocfs2/alloc.c:5581!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 11364 Comm: syz.7.4299 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ocfs2_remove_extent+0x1ecf/0x2020
Code: fa ff ff 48 8b 4c 24 08 80 e1 07 fe c1 38 c1 0f 8c 95 fa ff ff 48 8b 7c 24 08 e8 1c 45 8d fe e9 86 fa ff ff e8 32 dc 29 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d 23 81 0a 0f bf 07 00 00
RSP: 0018:ffffc90004326600 EFLAGS: 00010293
RAX: ffffffff8395cefe RBX: ffffc90004326df8 RCX: ffff8880212db980
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004
RBP: ffffc90004326950 R08: ffff8880212db980 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1102652989a
R13: 0000000000000004 R14: ffff88813294c4d0 R15: dffffc0000000000
FS:  00007fb04f8366c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2f882e30 CR3: 0000000129064000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_remove_btree_range+0xdef/0x1540
 ocfs2_commit_truncate+0xb64/0x21d0
 ocfs2_evict_inode+0x1138/0x40e0
 evict+0x504/0x9c0
 ocfs2_dentry_iput+0x247/0x370
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 __fput+0x68e/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb04e9c14a5
Code: Unable to access opcode bytes at 0x7fb04e9c147b.
RSP: 002b:00007fb04f835f80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007fb04ebb5fa0 RCX: 00007fb04e9c14a5
RDX: 00007fb04f835fc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb04ea11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fb04ebb6038 R14: 00007fb04ebb5fa0 R15: 00007ffc2f886e98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_remove_extent+0x1ecf/0x2020
Code: fa ff ff 48 8b 4c 24 08 80 e1 07 fe c1 38 c1 0f 8c 95 fa ff ff 48 8b 7c 24 08 e8 1c 45 8d fe e9 86 fa ff ff e8 32 dc 29 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d 23 81 0a 0f bf 07 00 00
RSP: 0018:ffffc90004326600 EFLAGS: 00010293
RAX: ffffffff8395cefe RBX: ffffc90004326df8 RCX: ffff8880212db980
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004
RBP: ffffc90004326950 R08: ffff8880212db980 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1102652989a
R13: 0000000000000004 R14: ffff88813294c4d0 R15: dffffc0000000000
FS:  00007fb04f8366c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73a30aefc8 CR3: 0000000133266000 CR4: 00000000000006f0
