BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11395) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor198/11376 is trying to acquire lock: 000000002cba609e (sb_internal#2){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] 000000002cba609e (sb_internal#2){.+.+}, at: start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 but task is already holding lock: 00000000c7a4d6d0 (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_quota_enable+0xbf/0x10b0 fs/btrfs/qgroup.c:893 which lock already depends on the new lock. 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 __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-executor198/11376: #0: 00000000eefae9dc (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000eefae9dc (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 00000000c5c6df53 (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5229 [inline] #1: 00000000c5c6df53 (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl+0x3d12/0x76d0 fs/btrfs/ioctl.c:6021 #2: 00000000c7a4d6d0 (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_quota_enable+0xbf/0x10b0 fs/btrfs/qgroup.c:893 stack backtrace: CPU: 1 PID: 11376 Comm: syz-executor198 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: 0033:0x7f79cd472f89 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:00007ffddb264a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f79cd472f89 RDX: 00000000200000c0 RSI: 00000000c0109428 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00007ffddb264a80 R09: 00007ffddb264a80 R10: 00000000000050ce R11: 0000000000000246 R12: 00007ffddb264a7c R13: 00007ffddb264ab0 R14: 00007ffddb264a90 R15: 000000000000001e BTRFS error (device loop4): fail to start transaction for status update: -28 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11422) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11400) kauditd_printk_skb: 27 callbacks suppressed audit: type=1800 audit(1671575466.906:247): pid=11422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13979 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11421) audit: type=1800 audit(1671575466.936:248): pid=11400 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13980 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11439) audit: type=1800 audit(1671575466.986:249): pid=11421 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13876 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11434) audit: type=1800 audit(1671575467.026:250): pid=11439 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13981 res=0 audit: type=1800 audit(1671575467.026:251): pid=11434 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13977 res=0 audit: type=1800 audit(1671575467.266:252): pid=11454 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13981 res=0 audit: type=1800 audit(1671575467.466:253): pid=11457 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13983 res=0 audit: type=1800 audit(1671575467.536:254): pid=11455 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13983 res=0 BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11469) BTRFS info (device loop4): using free space tree BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS info (device loop4): has skinny extents audit: type=1800 audit(1671575467.566:255): pid=11453 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13981 res=0 audit: type=1800 audit(1671575467.576:256): pid=11456 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13978 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11488) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11485) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11490) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11526) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11524) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11537) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11548) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11542) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11554) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11399) 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 syz-executor198 (11568) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11576) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS info (device loop5): using free space tree BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11580) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11592) 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 syz-executor198 (11594) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11600) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11612) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11618) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11604) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11628) 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 syz-executor198 (11635) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS info (device loop4): using free space tree BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11645) BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11649) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11653) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11604) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11655) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11668) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11684) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11685) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11690) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11707) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11718) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11703) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11714) 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-executor198 (11726) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11730) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11733) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS info (device loop3): using free space tree BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11737) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11771) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11770) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11604) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11779) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11788) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11790) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11796) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11798) kauditd_printk_skb: 49 callbacks suppressed audit: type=1800 audit(1671575471.927:306): pid=11798 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13996 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11828) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11837) audit: type=1800 audit(1671575472.027:307): pid=11828 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=14004 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11824) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11404) audit: type=1800 audit(1671575472.037:308): pid=11745 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="loop3" ino=263 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11830) audit: type=1800 audit(1671575472.087:309): pid=11837 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13981 res=0 audit: type=1800 audit(1671575472.127:310): pid=11824 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13999 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11399) audit: type=1800 audit(1671575472.287:311): pid=11830 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13999 res=0 BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11284) audit: type=1800 audit(1671575472.437:312): pid=11849 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13999 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11840) audit: type=1800 audit(1671575472.507:313): pid=11840 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=14003 res=0 BTRFS info (device loop4): using free space tree BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11852) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11856) BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11399) audit: type=1800 audit(1671575472.657:314): pid=11852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13998 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11280) audit: type=1800 audit(1671575472.687:315): pid=11856 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor198" name=".pending_reads" dev="sda1" ino=13981 res=0 BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (11860) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11866) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11873) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11604) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11876) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11877) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11903) 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 systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11907) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11913) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11916) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11920) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11929) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11944) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (11959) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11965) 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-executor198 (11966) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11968) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (11975) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (11983) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS info (device loop0): using free space tree BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (11992) BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (11995) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (12002) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor198 (12005) 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-executor198 (12030) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (12033) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (12031) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor198 (12040) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 11 scanned by systemd-udevd (11604) BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (12048) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (12051) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11404) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11280) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor198 (12056) 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-executor198 (12065) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (12069) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (12093) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (12092) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11280) 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-executor198 (12100) BTRFS info (device loop1): using free space tree BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (11399) BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor198 (12103) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (11287) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor198 (12116) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor198 (12112) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (11284) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (11280)