Description of problem: From /var/log/messages: [ 158.271526] ------------[ cut here ]------------ [ 158.271549] WARNING: CPU: 2 PID: 364 at fs/btrfs/inode.c:2206 record_one_backref+0x379/0x420 [btrfs]() [ 158.271550] Modules linked in: bnep bluetooth nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack nf_conntrack ip6table_filter ip6_tables arc4 iTCO_wdt iTCO_vendor_support iwldvm x86_pkg_temp_thermal snd_hda_codec_hdmi mac80211 coretemp uvcvideo snd_hda_codec_conexant videobuf2_vmalloc videobuf2_memops videobuf2_core videodev kvm_intel kvm snd_hda_intel snd_hda_codec media iwlwifi snd_hwdep thinkpad_acpi snd_seq sdhci_pci snd_seq_device snd_pcm i2c_i801 e1000e cfg80211 snd_page_alloc snd_timer sdhci snd mmc_core microcode soundcore rfkill wmi ptp pps_core serio_raw lpc_ich mfd_core mei_me shpchp mei mperf hdaps(OF) tp_smapi(OF) thinkpad_ec(OF) uinput btrfs libcrc32c xor zlib_deflate raid6_pq dm_crypt crc32_pclmul i915 crc32c_intel ghash_clmulni_intel i2c_algo_bit drm_kms_helper drm firewire_ohci firewire_core crc_itu_t i2c_core video input_polldev [ 158.271577] CPU: 2 PID: 364 Comm: btrfs-endio-wri Tainted: GF O 3.11.1-200.fc19.x86_64 #1 [ 158.271578] Hardware name: LENOVO 423946U/423946U, BIOS 8AET63WW (1.43 ) 05/08/2013 [ 158.271579] 0000000000000009 ffff88021038db18 ffffffff816476af 0000000000000000 [ 158.271581] ffff88021038db50 ffffffff810670dd ffff88020f4015a0 0000000000000001 [ 158.271582] ffff88020facb000 000000000034e2fe ffff8802030ba780 ffff88021038db60 [ 158.271584] Call Trace: [ 158.271589] [<ffffffff816476af>] dump_stack+0x45/0x56 [ 158.271592] [<ffffffff810670dd>] warn_slowpath_common+0x7d/0xa0 [ 158.271593] [<ffffffff810671ba>] warn_slowpath_null+0x1a/0x20 [ 158.271601] [<ffffffffa01c57b9>] record_one_backref+0x379/0x420 [btrfs] [ 158.271609] [<ffffffffa01c5440>] ? btrfs_submit_bio_hook+0x1e0/0x1e0 [btrfs] [ 158.271618] [<ffffffffa021a136>] iterate_extent_inodes+0x1c6/0x320 [btrfs] [ 158.271626] [<ffffffffa01c5440>] ? btrfs_submit_bio_hook+0x1e0/0x1e0 [btrfs] [ 158.271634] [<ffffffffa021a317>] iterate_inodes_from_logical+0x87/0xa0 [btrfs] [ 158.271641] [<ffffffffa01c393f>] record_extent_backrefs+0x7f/0xe0 [btrfs] [ 158.271649] [<ffffffffa01cddf6>] btrfs_finish_ordered_io+0x156/0x960 [btrfs] [ 158.271656] [<ffffffffa01ce7e5>] finish_ordered_fn+0x15/0x20 [btrfs] [ 158.271664] [<ffffffffa01ee63b>] worker_loop+0x12b/0x500 [btrfs] [ 158.271673] [<ffffffffa01ee510>] ? btrfs_queue_worker+0x300/0x300 [btrfs] [ 158.271675] [<ffffffff810885c0>] kthread+0xc0/0xd0 [ 158.271677] [<ffffffff81088500>] ? insert_kthread_work+0x40/0x40 [ 158.271679] [<ffffffff816567ac>] ret_from_fork+0x7c/0xb0 [ 158.271681] [<ffffffff81088500>] ? insert_kthread_work+0x40/0x40 [ 158.271682] ---[ end trace b81823a8da2125aa ]--- Version-Release number of selected component (if applicable): kernel-3.11.1-200.fc19.x86_64 btrfs-progs-0.20.rc1.20130308git704a08c-1.fc19.x86_64 How reproducible: Always. Steps to Reproduce: 1. Install Fedora 19 with btrfs 2. Upgrade to kernel 3.11.1-200 3. Boot Actual results: Scary message above in /var/log/messages. Expected results: No message in /var/log/messages. Additional info: If booted using 3.10.10-200 kernel, no messages appear. Only 3.11.1-200 produces those warnings. / is on a sub volume, and /home is on a different sub volume. So far no issues observed other than the warning, but to be safe, I have regressed back to running kernel 3.10.10-200.
Fixed upstream, the patch is Btrfs: reset ret in record_one_backref should be in the next stable build. For now you can just ignore the warning.
(In reply to Josef Bacik from comment #1) > Fixed upstream, the patch is > > Btrfs: reset ret in record_one_backref > > should be in the next stable build. For now you can just ignore the warning. Given that, I found that if I remove the autodefrag mount option, the warnings stop. I will leave that mount option off until next release with the upstream patch. Thank you!
FYI, this didn't make the 3.11.2-rc1 release. I'm guessing it was either missed, or it's queued for 3.11.3.
Didn't make 3.11.3 either. There was a mixup upstream. I believe it should be queued for 3.11.4 soon.
Finally made 3.11.5.
kernel-3.11.5-300.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/kernel-3.11.5-300.fc20
kernel-3.11.5-200.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/kernel-3.11.5-200.fc19
kernel-3.11.5-100.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.11.5-100.fc18
Package kernel-3.11.5-300.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.11.5-300.fc20' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-19105/kernel-3.11.5-300.fc20 then log in and leave karma (feedback).
kernel-3.11.5-301.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/kernel-3.11.5-301.fc20
kernel-3.11.6-200.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/kernel-3.11.6-200.fc19
kernel-3.11.6-100.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.11.6-100.fc18
kernel-3.11.6-200.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
kernel-3.11.6-101.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.11.6-101.fc18
Package kernel-3.11.6-101.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.11.6-101.fc18' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-20545/kernel-3.11.6-101.fc18 then log in and leave karma (feedback).
kernel-3.11.7-100.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/kernel-3.11.7-100.fc18
kernel-3.11.5-302.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
kernel-3.11.7-100.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.