Hi folks I am using btrfs in openSUSE 12.3 and I have seen several of these recently:
2013-10-03 10:04:27] ------------[ cut here ]------------ [2013-10-03 10:04:27] WARNING: at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.7.10/linux-3.7/fs/btrfs/extent_map.c:258 unpin_extent_cache+0x65/0x140 [btrfs]() [2013-10-03 10:04:27] Hardware name: GA-78LMT-USB3 [2013-10-03 10:04:27] Modules linked in: usb_storage vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack bnep bluetooth fuse rfkill ebtable_nat ebtables af_packet bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables x_tables it87 hwmon_vid tun mos7720 uvcvideo videobuf2_core videodev usbserial videobuf2_vmalloc videobuf2_memops acpi_cpufreq mperf snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm kvm_amd ghash_clmulni_intel aesni_intel ablk_helper cryptd kvm lrw snd_seq aes_x86_64 xts snd_timer snd_seq_device serio_raw gf128mul snd sp5100_tco edac_core edac_mce_amd pcspkr ppdev fam15h_power soundcore k10temp microcode snd_page_alloc r8169 i2c_piix4 sr_mod cdrom sg shpchp pci_hotplug parport_pc parport autofs4 btrfs zlib_deflate libcrc32c dm_mod linear raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid0 raid1 nouveau ttm drm_kms_helper drm i2c_algo_bit mxm_wmi video crc32c_intel xhci_hcd wmi button processor thermal_sys scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua scsi_dh ata_generic pata_atiixp sata_sil24 [last unloaded: vboxdrv] [2013-10-03 10:04:27] Pid: 22467, comm: btrfs-endio-wri Tainted: G W O 3.7.10-1.16-desktop #1 [2013-10-03 10:04:27] Call Trace: [2013-10-03 10:04:27] [<ffffffff81004818>] dump_trace+0x88/0x300 [2013-10-03 10:04:27] [<ffffffff8158af33>] dump_stack+0x69/0x6f [2013-10-03 10:04:27] [<ffffffff81045249>] warn_slowpath_common+0x79/0xc0 [2013-10-03 10:04:27] [<ffffffffa02d9b05>] unpin_extent_cache+0x65/0x140 [btrfs] [2013-10-03 10:04:27] [<ffffffffa02cecc5>] btrfs_finish_ordered_io+0x265/0x450 [btrfs] [2013-10-03 10:04:27] [<ffffffffa02ee3b3>] worker_loop+0x153/0x560 [btrfs] [2013-10-03 10:04:27] [<ffffffff810681c3>] kthread+0xb3/0xc0 [2013-10-03 10:04:27] [<ffffffff8159e9fc>] ret_from_fork+0x7c/0xb0 [2013-10-03 10:04:27] ---[ end trace 15c2365f00718aa8 ]--- I see no symptoms of a problem at this time. (Disks seem a bit busy, but I think that's the snapperd) I don't seem to find many matches for 'unpin_extent_cache+0x65/0x140 [btrfs]' which I believe is the actual point that the system decided to do the 'opps'.. but I may be wrong. Is this something I need to do something about ? I can send a siga output if it will help. (I tried to attach it as a compressed text file, but the email bounced previously) Regards Jerome -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html