From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:45851 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754090Ab3ITWZW (ORCPT ); Fri, 20 Sep 2013 18:25:22 -0400 Received: from merkaba.localnet (aftr-37-24-144-33.unity-media.net [37.24.144.33]) by mail.lichtvoll.de (Postfix) with ESMTPSA id 8824E1EF for ; Sat, 21 Sep 2013 00:25:20 +0200 (CEST) From: Martin Steigerwald To: linux-btrfs@vger.kernel.org Subject: [REGRESSION] 3.12-rc1: Trying to create snapshot corrupted filesystem Date: Sat, 21 Sep 2013 00:25:02 +0200 Message-ID: <5021349.IU75SGaY0J@merkaba> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi! I tried to create a snapshot today like this: merkaba:/mnt/debian-zeit> ls -l insgesamt 0 drwxr-xr-x 1 root root 210 Sep 20 11:48 root merkaba:/mnt/debian-zeit> btrfs subvol list / ID 256 gen 21382 top level 5 path root merkaba:/mnt/debian-zeit> btrfs subvol snap -r root root-2013-09-20 merkaba:/mnt/debian-zeit#1> on martin@merkaba:~> cat /proc/version Linux version 3.12.0-rc1-tp520 (martin@merkaba) (gcc version 4.8.1 (Debian 4.8.1-10) ) #30 SMP PREEMPT Tue Sep 17 12:40:01 CEST 2013 and got this: [ 44.069468] ------------[ cut here ]------------ [ 44.073291] WARNING: CPU: 3 PID: 3660 at fs/btrfs/uuid-tree.c:45 btrfs_uuid_tree_add+0x4e/0x2a0 [btrfs]() [ 44.073345] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables rfcomm bnep bluetooth cuse nfnetlin k_queue nfnetlink_log nfnetlink cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc uinput ext4 crc16 mbcache jbd2 fuse ecryptfs sbs sbshc joydev hdaps(O) tp_smapi(O) thinkpad_ec(O) loop firewire_sbp2 dm_crypt sn d_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss x86_pkg_temp_thermal intel_powerclamp coretemp snd_pcm kvm_intel kvm snd_page_alloc iwldvm mac80211 microcode snd_seq_midi snd_seq_midi_event psmouse iwlwifi pcspkr serio_raw i2c_i801 snd_rawmidi lp c_ich mfd_core cfg80211 snd_seq snd_seq_device thinkpad_acpi snd_timer tpm_tis tpm battery tpm_bios nvram ac rfkill snd evdev soundcore processor btrfs xor raid6_pq libcrc32c md_mod dm_mirror dm_region_hash dm_log dm_mod sg sr_mod cdrom sd_mod crc_t10dif crct10dif_pclmul crc32_pclmul crc32c_intel ghas h_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul ahci glue_helper sata_sil24 ablk_helper libahci cryptd sdhci_pci libata ehci_pci sdhci firewire_ohc i ehci_hcd mmc_core firewire_core crc_itu_t scsi_mod usbcore e1000e usb_common ptp pps_core thermal [ 44.073393] CPU: 3 PID: 3660 Comm: btrfs Tainted: G O 3.12.0-rc1-tp520 #30 [ 44.073394] Hardware name: LENOVO 42433WG/42433WG, BIOS 8AET63WW (1.43 ) 05/08/2013 [ 44.073398] 0000000000000000 ffff880201e57a58 ffffffff81420f5f 0000000000000000 [ 44.073401] ffff880201e57a90 ffffffff81036a58 ffffffffa029928f ffff88020f8e11e0 [ 44.073404] ffff880201e57be0 0000000000000000 00000000000000fb ffff880201e57aa0 [ 44.073405] Call Trace: [ 44.073413] [] dump_stack+0x4e/0x82 [ 44.073418] [] warn_slowpath_common+0x7a/0x93 [ 44.073451] [] ? btrfs_uuid_tree_add+0x4e/0x2a0 [btrfs] [ 44.073454] [] warn_slowpath_null+0x15/0x17 [ 44.073484] [] btrfs_uuid_tree_add+0x4e/0x2a0 [btrfs] [ 44.073511] [] ? btrfs_update_inode+0x41/0x85 [btrfs] [ 44.073536] [] create_pending_snapshot+0x605/0x6c5 [btrfs] [ 44.073559] [] create_pending_snapshots+0x6d/0x89 [btrfs] [ 44.073581] [] btrfs_commit_transaction+0x3a0/0x857 [btrfs] [ 44.073610] [] btrfs_mksubvol.isra.27+0x253/0x37f [btrfs] [ 44.073637] [] btrfs_ioctl_snap_create_transid+0x121/0x151 [btrfs] [ 44.073662] [] btrfs_ioctl_snap_create_v2+0xcb/0x11c [btrfs] [ 44.073688] [] btrfs_ioctl+0x419/0x1e59 [btrfs] [ 44.073692] [] ? __do_page_fault+0x33d/0x3b1 [ 44.073696] [] ? __cycles_2_ns+0xd/0x4d [ 44.073701] [] vfs_ioctl+0x18/0x34 [ 44.073704] [] do_vfs_ioctl+0x32f/0x3e4 [ 44.073708] [] SyS_ioctl+0x52/0x7d [ 44.073712] [] tracesys+0xdd/0xe2 [ 44.073714] ---[ end trace 2968ecf24298c279 ]--- [ 44.073716] ------------[ cut here ]------------ [ 44.073743] WARNING: CPU: 3 PID: 3660 at fs/btrfs/uuid-tree.c:109 btrfs_uuid_tree_add+0x177/0x2a0 [btrfs]() [ 44.073777] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables rfcomm bnep bluetooth cuse nfnetlink_queue nfnetlink_log nfnetlink cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc uinput ext4 crc16 mbcache jbd2 fuse ecryptfs sbs sbshc joydev hdaps(O) tp_smapi(O) thinkpad_ec(O) loop firewire_sbp2 dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss x86_pkg_temp_thermal intel_powerclamp coretemp snd_pcm kvm_intel kvm snd_page_alloc iwldvm mac80211 microcode snd_seq_midi snd_seq_midi_event psmouse iwlwifi pcspkr serio_raw i2c_i801 snd_rawmidi lpc_ich mfd_core cfg80211 snd_seq snd_seq_device thinkpad_acpi snd_timer tpm_tis tpm battery tpm_bios nvram ac rfkill snd evdev soundcore processor btrfs xor raid6_pq libcrc32c md_mod dm_mirror dm_region_hash dm_log dm_mod sg sr_mod cdrom sd_mod crc_t10dif crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul ahci glue_helper sata_sil24 ablk_helper libahci cryptd sdhci_pci libata ehci_pci sdhci firewire_ohci ehci_hcd mmc_core firewire_core crc_itu_t scsi_mod usbcore e1000e usb_common ptp pps_core thermal [ 44.073804] CPU: 3 PID: 3660 Comm: btrfs Tainted: G W O 3.12.0-rc1-tp520 #30 [ 44.073805] Hardware name: LENOVO 42433WG/42433WG, BIOS 8AET63WW (1.43 ) 05/08/2013 [ 44.073808] 0000000000000000 ffff880201e57a58 ffffffff81420f5f 0000000000000000 [ 44.073810] ffff880201e57a90 ffffffff81036a58 ffffffffa02993b8 0000000000000000 [ 44.073813] ffff880201e57be0 0000000000000000 00000000000000fb ffff880201e57aa0 [ 44.073814] Call Trace: [ 44.073817] [] dump_stack+0x4e/0x82 [ 44.073820] [] warn_slowpath_common+0x7a/0x93 [ 44.073848] [] ? btrfs_uuid_tree_add+0x177/0x2a0 [btrfs] [ 44.073851] [] warn_slowpath_null+0x15/0x17 [ 44.073879] [] btrfs_uuid_tree_add+0x177/0x2a0 [btrfs] [ 44.073904] [] ? btrfs_update_inode+0x41/0x85 [btrfs] [ 44.073926] [] create_pending_snapshot+0x605/0x6c5 [btrfs] [ 44.073949] [] create_pending_snapshots+0x6d/0x89 [btrfs] [ 44.073971] [] btrfs_commit_transaction+0x3a0/0x857 [btrfs] [ 44.073998] [] btrfs_mksubvol.isra.27+0x253/0x37f [btrfs] [ 44.074022] [] btrfs_ioctl_snap_create_transid+0x121/0x151 [btrfs] [ 44.074046] [] btrfs_ioctl_snap_create_v2+0xcb/0x11c [btrfs] [ 44.074071] [] btrfs_ioctl+0x419/0x1e59 [btrfs] [ 44.074074] [] ? __do_page_fault+0x33d/0x3b1 [ 44.074078] [] ? __cycles_2_ns+0xd/0x4d [ 44.074081] [] vfs_ioctl+0x18/0x34 [ 44.074085] [] do_vfs_ioctl+0x32f/0x3e4 [ 44.074088] [] SyS_ioctl+0x52/0x7d [ 44.074092] [] tracesys+0xdd/0xe2 [ 44.074094] ---[ end trace 2968ecf24298c27a ]--- [ 44.074095] ------------[ cut here ]------------ [ 44.074112] WARNING: CPU: 3 PID: 3660 at fs/btrfs/super.c:255 __btrfs_abort_transaction+0x4f/0xff [btrfs]() [ 44.074113] btrfs: Transaction aborted (error -22) [ 44.074146] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables rfcomm bnep bluetooth cuse nfnetlink_queue nfnetlink_log nfnetlink cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc uinput ext4 crc16 mbcache jbd2 fuse ecryptfs sbs sbshc joydev hdaps(O) tp_smapi(O) thinkpad_ec(O) loop firewire_sbp2 dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss x86_pkg_temp_thermal intel_powerclamp coretemp snd_pcm kvm_intel kvm snd_page_alloc iwldvm mac80211 microcode snd_seq_midi snd_seq_midi_event psmouse iwlwifi pcspkr serio_raw i2c_i801 snd_rawmidi lpc_ich mfd_core cfg80211 snd_seq snd_seq_device thinkpad_acpi snd_timer tpm_tis tpm battery tpm_bios nvram ac rfkill snd evdev soundcore processor btrfs xor raid6_pq libcrc32c md_mod dm_mirror dm_region_hash dm_log dm_mod sg sr_mod cdrom sd_mod crc_t10dif crct10dif_pclmul crc32_pclmul crc32c_intel ghas h_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul ahci glue_helper sata_sil24 ablk_helper libahci cryptd sdhci_pci libata ehci_pci sdhci firewire_ohci ehci_hcd mmc_core firewire_core crc_itu_t scsi_mod usbcore e1000e usb_common ptp pps_core thermal [ 44.074173] CPU: 3 PID: 3660 Comm: btrfs Tainted: G W O 3.12.0-rc1-tp520 #30 [ 44.074174] Hardware name: LENOVO 42433WG/42433WG, BIOS 8AET63WW (1.43 ) 05/08/2013 [ 44.074177] 0000000000000000 ffff880201e57a68 ffffffff81420f5f ffff880201e57ab0 [ 44.074180] ffff880201e57aa0 ffffffff81036a58 ffffffffa0225c91 00000000ffffffea [ 44.074182] ffff8800cf97b000 ffff88020f8e11e0 ffffffffa02a19b0 ffff880201e57b00 [ 44.074183] Call Trace: [ 44.074186] [] dump_stack+0x4e/0x82 [ 44.074189] [] warn_slowpath_common+0x7a/0x93 [ 44.074207] [] ? __btrfs_abort_transaction+0x4f/0xff [btrfs] [ 44.074212] [] warn_slowpath_fmt+0x47/0x49 [ 44.074231] [] __btrfs_abort_transaction+0x4f/0xff [btrfs] [ 44.074253] [] create_pending_snapshot+0x674/0x6c5 [btrfs] [ 44.074276] [] create_pending_snapshots+0x6d/0x89 [btrfs] [ 44.074298] [] btrfs_commit_transaction+0x3a0/0x857 [btrfs] [ 44.074323] [] btrfs_mksubvol.isra.27+0x253/0x37f [btrfs] [ 44.074353] [] btrfs_ioctl_snap_create_transid+0x121/0x151 [btrfs] [ 44.074389] [] btrfs_ioctl_snap_create_v2+0xcb/0x11c [btrfs] [ 44.074414] [] btrfs_ioctl+0x419/0x1e59 [btrfs] [ 44.074418] [] ? __do_page_fault+0x33d/0x3b1 [ 44.074421] [] ? __cycles_2_ns+0xd/0x4d [ 44.074425] [] vfs_ioctl+0x18/0x34 [ 44.074428] [] do_vfs_ioctl+0x32f/0x3e4 [ 44.074432] [] SyS_ioctl+0x52/0x7d [ 44.074436] [] tracesys+0xdd/0xe2 [ 44.074444] ---[ end trace 2968ecf24298c27b ]--- [ 44.074447] BTRFS error (device sdb3) in create_pending_snapshot:1321: errno=-22 unknown [ 44.074449] BTRFS info (device sdb3): forced readonly [ 44.074453] BTRFS warning (device sdb3): Skipping commit of aborted transaction. [ 44.074455] BTRFS error (device sdb3) in cleanup_transaction:1526: errno=-22 unknown The snapshot was not created. The first time I got this I immediately scrubbed that / filesystem. The scrub was fine. I tried doing this snapshot another time after a reboot, to see whether it happens again. It happened again. And this time the scrub got two errors: merkaba:~> btrfs scrub status / scrub status for 2f5c334d-249b-4c89-95cc-18572f750bd7 scrub started at Sat Sep 21 00:12:08 2013 and finished after 56 seconds total bytes scrubbed: 11.91GB with 2 errors error details: csum=2 corrected errors: 0, uncorrectable errors: 2, unverified errors: 0 [ 17.104914] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 17.105028] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 33.956693] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.794269] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.794375] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.794471] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.794634] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.795022] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 63.895130] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 63.895499] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 68.374843] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 68.375500] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 70.847884] btrfs_readpage_end_io_hook: 2 callbacks suppressed [ 70.847892] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 70.848082] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 70.848422] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 72.125945] btrfs: checksum error at logical 347918336 on dev /dev/sdb3, sector 679528, root 256, inode 703589, offset 122880, length 3984, links 1 (path: var/log/auth.log) [ 72.125955] btrfs: bdev /dev/sdb3 errs: wr 0, rd 0, flush 0, corrupt 3, gen 0 [ 72.125959] btrfs: unable to fixup (regular) error at logical 347918336 on dev /dev/sdb3 [ 72.206252] btrfs: checksum error at logical 366272512 on dev /dev/sdb3, sector 715376, root 256, inode 760517, offset 16384, length 3541, links 1 (path: root/.histfile) [ 72.206265] btrfs: bdev /dev/sdb3 errs: wr 0, rd 0, flush 0, corrupt 4, gen 0 [ 72.206268] btrfs: unable to fixup (regular) error at logical 366272512 on dev /dev/sdb3 [ 72.713399] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 72.715442] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 72.717669] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 74.810905] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 74.813084] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 74.815255] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 75.695764] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 76.409554] btrfs_readpage_end_io_hook: 2 callbacks suppressed [ 76.409561] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 76.411572] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 76.411830] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.205828] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.207987] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.210291] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.928918] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.931074] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 77.933276] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 78.693109] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 85.671161] btrfs_readpage_end_io_hook: 9 callbacks suppressed [ 85.671169] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 85.673191] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 85.675278] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 90.543999] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 90.545910] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 90.546076] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 188.834397] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 188.834575] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 188.834674] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 189.805403] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 189.805577] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 189.805667] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 198.813652] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 198.813847] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 198.814033] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 200.063988] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 200.064164] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 200.064264] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 214.143681] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 214.143931] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 214.144060] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 217.938320] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 217.938474] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 217.938555] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 219.652380] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 219.652582] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 219.652746] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 220.495560] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 220.495776] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 220.495900] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 230.830936] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 230.831105] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 230.831202] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 243.215473] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 243.215566] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 243.218387] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 243.218473] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 248.000900] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 301.681557] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 301.681713] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 363.253315] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 363.253475] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 363.256074] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 363.256252] BTRFS info (device sdb3): csum failed ino 703589 off 122880 csum 4200103148 expected csum 331742955 [ 470.728931] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 470.729234] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 470.729443] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 478.882101] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 478.882526] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 478.882715] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 492.253997] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 492.254377] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 [ 492.254611] BTRFS info (device sdb3): csum failed ino 760517 off 16384 csum 2078849109 expected csum 2695320142 This is on an only about a month old 30 GB Intel mSATA SSDMCEAC030B3 which reports SMART status as passed and has media wearout indicator still at 100 from 100. So I bet the SSD is still fine. Will do self-tests tomorrow nonetheless. I didnt try this on another BTRFS filesystem and I do not feel comfortable trying it on /home, although I have a backup from yesterday, but in a different city :). I will scrub /home tough, but I bet it is just fine. I will keep / as is for now. Maybe you have some ideas where I can dig at. Since this is a production laptop (well, heck, I still test rc1 kernels on it), I will redo the filesystem if needed for proper operation. To what I recall snapshots just worked fine with 3.11. Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7{.n++%ݶw{.n+{k~^nrzh&zzޗ++zfh~iz_j:+v)ߣm