BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (16992) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16809) ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor960/16967 is trying to acquire lock: 00000000a3a65f94 (sb_internal#2){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] 00000000a3a65f94 (sb_internal#2){.+.+}, at: start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 but task is already holding lock: 00000000df674177 (&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_remove_qgroup+0xae/0x770 fs/btrfs/qgroup.c:1415 btrfs_ioctl_qgroup_create fs/btrfs/ioctl.c:5337 [inline] btrfs_ioctl+0x661c/0x76d0 fs/btrfs/ioctl.c:6025 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 warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (16990) 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-executor960/16967: #0: 0000000084247982 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000084247982 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 0000000098eb23f5 (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:5229 [inline] #1: 0000000098eb23f5 (&fs_info->subvol_sem){+.+.}, at: btrfs_ioctl+0x3d12/0x76d0 fs/btrfs/ioctl.c:6021 #2: 00000000df674177 (&fs_info->qgroup_ioctl_lock){+.+.}, at: btrfs_quota_enable+0xbf/0x10b0 fs/btrfs/qgroup.c:893 stack backtrace: CPU: 1 PID: 16967 Comm: syz-executor960 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: 0033:0x7f51a8b38f79 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:00007fff47b31c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f51a8b38f79 RDX: 00000000200000c0 RSI: 00000000c0109428 RDI: 0000000000000004 RBP: 0000000000000000 R08: 00007fff47b31c90 R09: 00007fff47b31c90 R10: 00000000000050ce R11: 0000000000000246 R12: 00007fff47b31c8c R13: 00007fff47b31cc0 R14: 00007fff47b31ca0 R15: 00000000000000b6 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17018) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17023) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16825) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17031) BTRFS error (device loop4): fail to start transaction for status update: -28 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17053) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17054) BTRFS info (device loop5): using free space tree BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17055) BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17066) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16825) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17072) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17080) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17087) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17077) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17094) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16825) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17127) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17112) 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 systemd-udevd (16812) kauditd_printk_skb: 32 callbacks suppressed audit: type=1800 audit(1670267418.911:1061): pid=17112 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14253 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16827) audit: type=1800 audit(1670267418.991:1062): pid=17141 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14250 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17132) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17131) audit: type=1800 audit(1670267419.081:1063): pid=17132 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14250 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16832) audit: type=1800 audit(1670267419.131:1064): pid=17131 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14250 res=0 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17146) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16848) audit: type=1800 audit(1670267419.271:1065): pid=17146 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14251 res=0 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17148) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16827) audit: type=1800 audit(1670267419.381:1066): pid=17148 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14251 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17170) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17169) audit: type=1800 audit(1670267419.491:1067): pid=17170 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14252 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17172) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16832) audit: type=1800 audit(1670267419.531:1068): pid=17104 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="loop1" ino=263 res=0 audit: type=1800 audit(1670267419.531:1069): pid=17169 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14244 res=0 audit: type=1800 audit(1670267419.591:1070): pid=17172 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14250 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS info (device loop5): using free space tree BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17185) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17188) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17192) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17196) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17228) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17232) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17234) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17238) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17236) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17244) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17256) BTRFS info (device loop4): using free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17262) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17266) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17273) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17300) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17303) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17304) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17281) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17313) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17321) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17324) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17323) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17337) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17353) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17363) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17348) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17377) 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 syz-executor960 (17383) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17386) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17384) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17399) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17406) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17423) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17427) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17420) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17445) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16832) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17441) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17438) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) 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 systemd-udevd (16848) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17461) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16825) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17464) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17465) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17471) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17489) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17485) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17501) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17511) kauditd_printk_skb: 49 callbacks suppressed audit: type=1800 audit(1670267423.961:1120): pid=17501 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14250 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16825) audit: type=1800 audit(1670267424.021:1121): pid=17511 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14267 res=0 BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17516) audit: type=1800 audit(1670267424.191:1122): pid=17449 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="loop5" ino=263 res=0 audit: type=1800 audit(1670267424.221:1123): pid=17516 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14268 res=0 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (16832) audit: type=1800 audit(1670267424.291:1124): pid=17526 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14244 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17518) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (16827) audit: type=1800 audit(1670267424.361:1125): pid=17518 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14217 res=0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (16812) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor960 (17520) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17525) audit: type=1800 audit(1670267424.521:1126): pid=17520 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14262 res=0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16825) audit: type=1800 audit(1670267424.581:1127): pid=17525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14267 res=0 BTRFS info (device loop1): using free space tree BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17538) BTRFS info (device loop1): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17542) audit: type=1800 audit(1670267424.821:1128): pid=17542 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14269 res=0 audit: type=1800 audit(1670267424.831:1129): pid=17541 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor960" name=".pending_reads" dev="sda1" ino=14270 res=0 btrfs_printk: 4 callbacks suppressed BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (16809) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17559) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (16825) BTRFS info (device loop3): using free space tree BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17583) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17588) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (17615) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17595) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (17639) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (17623) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17592) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (17633) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17606) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (17646) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17624) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (17639) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17638) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (17615) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17655) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (17633) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (17615) BTRFS info (device loop3): using free space tree BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17676) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (17633) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17687) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (17615) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor960 (17695) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 8 scanned by systemd-udevd (17639) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor960 (17683) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor960 (17725) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (17646) BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor960 (17712) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor960 (17689)