Hi everyone I lost two disks and then I tried to scrub. But it's always aborted. These are dmesg below. Thanks. [Sat Jul 18 16:08:49 2020] Btrfs loaded, crc32c=crc32c-intel [Sat Jul 18 16:08:49 2020] BTRFS: device fsid 76f7c004-2684-4956-a614-43472049ea06 devid 6 transid 417627 /dev/mapper/disk-hn [Sat Jul 18 16:08:49 2020] BTRFS: device fsid 76f7c004-2684-4956-a614-43472049ea06 devid 5 transid 417627 /dev/mapper/disk-w6 [Sat Jul 18 16:08:49 2020] BTRFS: device fsid 76f7c004-2684-4956-a614-43472049ea06 devid 4 transid 417627 /dev/mapper/disk-te [Sat Jul 18 16:08:49 2020] BTRFS: device fsid 4d52cb05-0e1e-47b1-9ddc-ce440eed0f56 devid 1 transid 613 /dev/mapper/boot [Sat Jul 18 16:08:49 2020] BTRFS: device fsid 25814f60-8609-48b1-8b94-8abbf616dc7a devid 1 transid 11440656 /dev/mapper/rescue [Sat Jul 18 16:08:50 2020] BTRFS info (device dm-0): disk space caching is enabled [Sat Jul 18 16:08:50 2020] BTRFS info (device dm-0): has skinny extents [Sat Jul 18 16:08:50 2020] BTRFS info (device dm-0): enabling ssd optimizations [Sat Jul 18 16:08:50 2020] BTRFS info (device dm-0): disk space caching is enabled [Sat Jul 18 16:08:51 2020] BTRFS info (device dm-0): device fsid 25814f60-8609-48b1-8b94-8abbf616dc7a devid 1 moved old:/dev/mapper/rescue new:/dev/dm-0 [Sat Jul 18 16:08:51 2020] BTRFS info (device dm-0): device fsid 25814f60-8609-48b1-8b94-8abbf616dc7a devid 1 moved old:/dev/dm-0 new:/dev/mapper/rescue [Sat Jul 18 16:11:16 2020] BTRFS info (device dm-2): disk space caching is enabled [Sat Jul 18 16:11:16 2020] BTRFS info (device dm-2): has skinny extents [Sat Jul 18 16:11:16 2020] BTRFS error (device dm-2): devid 2 uuid 6a42b1ec-a0fe-47d7-8cdc-9835672430ea is missing [Sat Jul 18 16:11:16 2020] BTRFS error (device dm-2): failed to read the system array: -2 [Sat Jul 18 16:11:16 2020] BTRFS error (device dm-2): open_ctree failed [Sat Jul 18 16:18:02 2020] BTRFS info (device dm-2): disk space caching is enabled [Sat Jul 18 16:18:02 2020] BTRFS info (device dm-2): has skinny extents [Sat Jul 18 16:18:02 2020] BTRFS error (device dm-2): devid 2 uuid 6a42b1ec-a0fe-47d7-8cdc-9835672430ea is missing [Sat Jul 18 16:18:02 2020] BTRFS error (device dm-2): failed to read the system array: -2 [Sat Jul 18 16:18:02 2020] BTRFS error (device dm-2): open_ctree failed [Sat Jul 18 16:19:25 2020] BTRFS info (device dm-2): allowing degraded mounts [Sat Jul 18 16:19:25 2020] BTRFS info (device dm-2): disk space caching is enabled [Sat Jul 18 16:19:25 2020] BTRFS info (device dm-2): has skinny extents [Sat Jul 18 16:19:25 2020] BTRFS warning (device dm-2): devid 2 uuid 6a42b1ec-a0fe-47d7-8cdc-9835672430ea is missing [Sat Jul 18 16:19:25 2020] BTRFS warning (device dm-2): devid 1 uuid b572e9b0-4ef3-4006-b300-e145b72c3945 is missing [Sat Jul 18 16:19:25 2020] BTRFS warning (device dm-2): devid 2 uuid 6a42b1ec-a0fe-47d7-8cdc-9835672430ea is missing [Sat Jul 18 16:19:26 2020] BTRFS info (device dm-2): bdev (efault) errs: wr 167491685, rd 147424524, flush 182654, corrupt 0, gen 0 [Sat Jul 18 16:19:26 2020] BTRFS info (device dm-2): bdev /dev/mapper/disk-te errs: wr 0, rd 0, flush 0, corrupt 0, gen 3 [Sat Jul 18 16:20:02 2020] BTRFS info (device dm-2): enabling ssd optimizations [Sat Jul 18 16:20:02 2020] BTRFS info (device dm-1): disk space caching is enabled [Sat Jul 18 16:20:02 2020] BTRFS info (device dm-1): has skinny extents [Sat Jul 18 16:20:02 2020] BTRFS info (device dm-1): enabling ssd optimizations [Sat Jul 18 16:27:48 2020] BTRFS info (device dm-2): scrub: started on devid 6 [Sat Jul 18 22:07:33 2020] BTRFS: Transaction aborted (error -17) [Sat Jul 18 22:07:33 2020] WARNING: CPU: 3 PID: 2970 at /build/linux-hwe-eg6_iE/linux-hwe-5.3.0/fs/btrfs/extent-tree.c:2795 btrfs_run_delayed_refs+0x152/0x1a0 [btrfs] [Sat Jul 18 22:07:33 2020] Modules linked in: rfcomm cmac bnep nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic edac_mce_amd ledtrig_audio kvm_amd btusb ccp btrtl kvm snd_hda_intel btbcm irqbypass snd_intel_dspcfg btintel joydev snd_seq_midi snd_seq_midi_event input_leds snd_hda_codec bluetooth mxm_wmi snd_hda_core snd_rawmidi fam15h_power k10temp snd_hwdep snd_pcm snd_seq ecdh_generic ecc snd_seq_device snd_timer snd soundcore mac_hid nvidia_uvm(OE) sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c algif_skcipher af_alg dm_crypt hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid nvidia_drm(POE) nvidia_modeset(POE) bcache crc64 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nvidia(POE) drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt fb_sys_fops aes_x86_64 crypto_simd drm cryptd glue_helper r8169 ipmi_devintf nvme realtek ahci nvme_core i2c_piix4 libahci ipmi_msghandler wmi [Sat Jul 18 22:07:33 2020] CPU: 3 PID: 2970 Comm: btrfs-transacti Tainted: P OE 5.3.0-62-generic #56~18.04.1-Ubuntu [Sat Jul 18 22:07:33 2020] RIP: 0010:btrfs_run_delayed_refs+0x152/0x1a0 [btrfs] [Sat Jul 18 22:07:33 2020] commit_cowonly_roots+0xe7/0x2d0 [btrfs] [Sat Jul 18 22:07:33 2020] ? btrfs_qgroup_account_extents+0x11c/0x260 [btrfs] [Sat Jul 18 22:07:33 2020] btrfs_commit_transaction+0x506/0x980 [btrfs] [Sat Jul 18 22:07:33 2020] transaction_kthread+0x148/0x170 [btrfs] [Sat Jul 18 22:07:33 2020] ? btrfs_cleanup_transaction+0x570/0x570 [btrfs] [Sat Jul 18 22:07:33 2020] BTRFS: error (device dm-2) in btrfs_run_delayed_refs:2795: errno=-17 Object already exists [Sat Jul 18 22:07:33 2020] BTRFS info (device dm-2): forced readonly [Sat Jul 18 22:07:33 2020] BTRFS warning (device dm-2): Skipping commit of aborted transaction. [Sat Jul 18 22:07:33 2020] BTRFS: error (device dm-2) in cleanup_transaction:1839: errno=-17 Object already exists [Sat Jul 18 22:07:33 2020] BTRFS warning (device dm-2): failed setting block group ro: -30 [Sat Jul 18 22:07:33 2020] BTRFS info (device dm-2): scrub: not finished on devid 6 with status: -30 Ubuntu 18.04 btrfs-progs v5.7 Regards, Chiung-Ming Huang
