audit: type=1800 audit(1672485532.592:214): pid=11220 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13948 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11242) audit: type=1800 audit(1672485532.802:215): pid=11229 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="loop1" ino=263 res=0 ====================================================== WARNING: possible circular locking dependency detected BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11247) 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor419/11229 is trying to acquire lock: 00000000a1b3ce1d (sb_internal#2){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] 00000000a1b3ce1d (sb_internal#2){.+.+}, at: start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 but task is already holding lock: audit: type=1800 audit(1672485532.802:216): pid=11242 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13948 res=0 000000008a8d1a94 (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_quota_enable+0xbf/0x10b0 fs/btrfs/qgroup.c:893 which lock already depends on the new lock. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11284) the existing dependency chain (in reverse order) is: -> #1 (&fs_info->qgroup_ioctl_lock){+.+.}: btrfs_add_qgroup_relation+0xa7/0x740 fs/btrfs/qgroup.c:1264 btrfs_ioctl_qgroup_assign fs/btrfs/ioctl.c:5280 [inline] btrfs_ioctl+0x3a05/0x76d0 fs/btrfs/ioctl.c:6023 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 audit: type=1800 audit(1672485532.802:217): pid=11247 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13951 res=0 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (sb_internal#2){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x6e/0x2a0 fs/super.c:1366 sb_start_intwrite include/linux/fs.h:1626 [inline] start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 btrfs_quota_enable+0x169/0x10b0 fs/btrfs/qgroup.c:905 btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5233 [inline] btrfs_ioctl+0x622c/0x76d0 fs/btrfs/ioctl.c:6021 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&fs_info->qgroup_ioctl_lock); lock(sb_internal#2); lock(&fs_info->qgroup_ioctl_lock); lock(sb_internal#2); *** DEADLOCK *** 3 locks held by syz-executor419/11229: #0: 00000000b51e03a3 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000b51e03a3 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 00000000ac54c15a (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5229 [inline] #1: 00000000ac54c15a (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl+0x3d12/0x76d0 fs/btrfs/ioctl.c:6021 #2: 000000008a8d1a94 (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_quota_enable+0xbf/0x10b0 fs/btrfs/qgroup.c:893 stack backtrace: CPU: 1 PID: 11229 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x6e/0x2a0 fs/super.c:1366 sb_start_intwrite include/linux/fs.h:1626 [inline] start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 btrfs_quota_enable+0x169/0x10b0 fs/btrfs/qgroup.c:905 btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5233 [inline] btrfs_ioctl+0x622c/0x76d0 fs/btrfs/ioctl.c:6021 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7efc34bb0f89 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd3d9b02a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efc34bb0f89 RDX: 00000000200000c0 RSI: 00000000c0109428 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00007ffd3d9b02d0 R09: 00007ffd3d9b02d0 R10: 00000000000050ce R11: 0000000000000246 R12: 00007ffd3d9b02cc R13: 00007ffd3d9b0300 R14: 00007ffd3d9b02e0 R15: 0000000000000024 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11238) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) audit: type=1800 audit(1672485533.482:218): pid=11238 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13948 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11283) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11250) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11254) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11286) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11294) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11283) BTRFS error (device loop1): fail to start transaction for status update: -28 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11285) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11302) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS info (device loop4): using free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11307) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11315) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11283) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11325) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11328) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11355) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11344) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11345) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11363) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11369) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11377) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11373) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS info (device loop1): using free space tree BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11391) BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11394) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11395) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11400) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11423) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11431) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11445) BTRFS info (device loop3): using free space tree BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11439) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11446) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11454) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11462) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11465) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11469) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11491) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11499) BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11510) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11507) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11516) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11530) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11526) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11332) kauditd_printk_skb: 41 callbacks suppressed audit: type=1800 audit(1672485537.082:260): pid=11526 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13960 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11554) audit: type=1800 audit(1672485537.202:261): pid=11554 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13949 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11551) BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11558) audit: type=1800 audit(1672485537.342:262): pid=11551 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13961 res=0 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11284) audit: type=1800 audit(1672485537.372:263): pid=11558 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13931 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11569) audit: type=1800 audit(1672485537.562:264): pid=11585 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13935 res=0 audit: type=1800 audit(1672485537.612:265): pid=11569 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13961 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11580) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11582) audit: type=1800 audit(1672485537.752:266): pid=11580 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13962 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) audit: type=1800 audit(1672485537.772:267): pid=11582 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13947 res=0 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11587) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11332) audit: type=1800 audit(1672485537.942:268): pid=11587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13962 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11609) audit: type=1800 audit(1672485538.032:269): pid=11609 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13964 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11621) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11615) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11620) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11629) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11638) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11640) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11639) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11331) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11665) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS info (device loop4): using free space tree BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11673) BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11681) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11689) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11709) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11692) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11718) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11332) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11724) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11293) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11739) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11744) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11743) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11298) BTRFS info (device loop4): using free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11779) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11787) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11789) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11810) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11817) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11794) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11795) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11825) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11833) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11837) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11822) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11823) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11810) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11817) BTRFS info (device loop0): using free space tree BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11847) BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11854) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor419 (11849) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11856) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11855) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11810) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11873) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11896) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11895) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11898) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11810) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11817) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11900) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11856) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11916) BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11913) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11918) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11817) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11810) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor419 (11930) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11873) kauditd_printk_skb: 50 callbacks suppressed audit: type=1800 audit(1672485542.262:320): pid=11930 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13979 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11948) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor419 (11955) audit: type=1800 audit(1672485542.392:321): pid=11948 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13980 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11817) audit: type=1800 audit(1672485542.392:322): pid=11955 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13981 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor419 (11953) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor419 (11947) audit: type=1800 audit(1672485542.532:323): pid=11953 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13974 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11804) audit: type=1800 audit(1672485542.592:324): pid=11947 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13975 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor419 (11976) audit: type=1800 audit(1672485542.652:325): pid=11976 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13975 res=0 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11856) audit: type=1800 audit(1672485542.722:326): pid=11977 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor419" name=".pending_reads" dev="sda1" ino=13975 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11810)