Dear Devs, I have x4 4TB HDDs formatted with: mkfs.btrfs -L bu-16TB_0 -d raid1 -m raid1 /dev/sd[cdef] /etc/fstab mounts with the options: noatime,noauto,space_cache,inode_cache All on kernel 3.8.13. Upon using rsync to copy some heavily hardlinked backups from ReiserFS, I've seen: The following "block rsv returned -28" is repeated 7 times until there is a call trace for: "WARNING: at fs/btrfs/super.c:256 __btrfs_abort_transaction+0x3d/0xad()". Then, the mount is set read-only. How to fix or debug? Thanks, Martin kernel: ------------[ cut here ]------------ kernel: WARNING: at fs/btrfs/extent-tree.c:6372 btrfs_alloc_free_block+0xd3/0x29c() kernel: Hardware name: GA-MA790FX-DS5 kernel: btrfs: block rsv returned -28 kernel: Modules linked in: raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq act_police cls_basic cls_flow cls_fw cls_u32 sch_tbf sch_prio sch_htb sch_hfsc sch_ingress sch_sfq xt_CHECKSUM ipt_rpfilter xt_statistic xt_CT xt_LOG xt_time xt_connlimit xt_realm xt_addrtype xt_comment xt_recent xt_policy xt_nat ipt_ULOG ipt_REJECT ipt_MASQUERADE ipt_ECN ipt_CLUSTERIP ipt_ah xt_set ip_set nf_nat _tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_udplite nf_conntrack_proto_sctp nf_conntrack_pptp nf_ conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_tcpmss xt_pkttype xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mar k xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP xt_dscp xt_dccp xt_conntrack xt_connmark xt_CLASSIFY xt_AUDIT xt_tcpudp xt_state iptable_raw iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_i pv4 nf_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables bridge stp llc rtc snd_hda_codec_realtek fbcon bitblit softcursor font nouveau video mxm_wmi cfbfillrect cfbimgblt cfbcopyarea i2c_algo_bit evdev d rm_kms_helper snd_hda_intel ttm snd_hda_codec drm i2c_piix4 pcspkr snd_pcm serio_raw snd_page_alloc snd_timer k8temp snd i2c_core processor button thermal_sys sky2 wmi backlight fb fbdev pata_acpi firewire_ohci firewire_cor e pata_atiixp usbhid pata_jmicron sata_sil24 kernel: Pid: 10980, comm: btrfs-transacti Not tainted 3.8.13-gentoo #1 kernel: Call Trace: kernel: [<ffffffff811e6600>] ? btrfs_init_new_buffer+0xef/0xf6 kernel: [<ffffffff810289c8>] ? warn_slowpath_common+0x78/0x8c kernel: [<ffffffff81028a74>] ? warn_slowpath_fmt+0x45/0x4a kernel: [<ffffffff81278f2c>] ? ___ratelimit+0xc4/0xd0 kernel: [<ffffffff811e66da>] ? btrfs_alloc_free_block+0xd3/0x29c kernel: [<ffffffff811d68e5>] ? __btrfs_cow_block+0x136/0x454 kernel: [<ffffffff811f0d47>] ? btrfs_buffer_uptodate+0x40/0x56 kernel: [<ffffffff811d6d8c>] ? btrfs_cow_block+0x132/0x19d kernel: [<ffffffff811da606>] ? btrfs_search_slot+0x2f5/0x624 kernel: [<ffffffff811dbc5a>] ? btrfs_insert_empty_items+0x5c/0xaf kernel: [<ffffffff811e5089>] ? run_clustered_refs+0x852/0x8e6 kernel: [<ffffffff811e4d20>] ? run_clustered_refs+0x4e9/0x8e6 kernel: [<ffffffff811e7f6b>] ? btrfs_run_delayed_refs+0x10d/0x289 kernel: [<ffffffff811f4ec6>] ? btrfs_commit_transaction+0x3a5/0x93c kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5a8c>] ? start_transaction+0x311/0x408 kernel: [<ffffffff811eed7e>] ? transaction_kthread+0xd1/0x16d kernel: [<ffffffff811eecad>] ? btrfs_alloc_root+0x34/0x34 kernel: [<ffffffff810420b3>] ? kthread+0xad/0xb5 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e kernel: [<ffffffff814315ac>] ? ret_from_fork+0x7c/0xb0 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e kernel: ---[ end trace b584e8ceb642293f ]--- kernel: ------------[ cut here ]------------ kernel: ------------[ cut here ]------------ kernel: WARNING: at fs/btrfs/super.c:256 __btrfs_abort_transaction+0x3d/0xad() kernel: Hardware name: GA-MA790FX-DS5 kernel: btrfs: Transaction aborted kernel: Modules linked in: raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq act_police cls_basic cls_flow cls_fw cls_u32 sch_tbf sch_prio sch_htb sch_hfsc sch_ingress sch_sfq xt_CHECKSUM ipt_rpfilter xt_statistic xt_CT xt_LOG xt_time xt_connlimit xt_realm xt_addrtype xt_comment xt_recent xt_policy xt_nat ipt_ULOG ipt_REJECT ipt_MASQUERADE ipt_ECN ipt_CLUSTERIP ipt_ah xt_set ip_set nf_nat _tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_udplite nf_conntrack_proto_sctp nf_conntrack_pptp nf_ conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_tcpmss xt_pkttype xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mar k xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP xt_dscp xt_dccp xt_conntrack xt_connmark xt_CLASSIFY xt_AUDIT xt_tcpudp xt_state iptable_raw iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_i pv4 nf_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables bridge stp llc rtc snd_hda_codec_realtek fbcon bitblit softcursor font nouveau video mxm_wmi cfbfillrect cfbimgblt cfbcopyarea i2c_algo_bit evdev d rm_kms_helper snd_hda_intel ttm snd_hda_codec drm i2c_piix4 pcspkr snd_pcm serio_raw snd_page_alloc snd_timer k8temp snd i2c_core processor button thermal_sys sky2 wmi backlight fb fbdev pata_acpi firewire_ohci firewire_cor e pata_atiixp usbhid pata_jmicron sata_sil24 kernel: Pid: 10980, comm: btrfs-transacti Tainted: G W 3.8.13-gentoo #1 kernel: Call Trace: kernel: [<ffffffff811d3600>] ? btrfs_printk+0x12/0xc2 kernel: [<ffffffff810289c8>] ? warn_slowpath_common+0x78/0x8c kernel: [<ffffffff81028a74>] ? warn_slowpath_fmt+0x45/0x4a kernel: [<ffffffff811d5e00>] ? btrfs_release_path+0x5e/0x79 kernel: [<ffffffff811d36ed>] ? __btrfs_abort_transaction+0x3d/0xad kernel: [<ffffffff811ed97b>] ? btrfs_save_ino_cache+0x1d4/0x348 kernel: [<ffffffff8142ce4c>] ? commit_fs_roots.isra.25+0xa1/0x14a kernel: [<ffffffff81237a0f>] ? btrfs_scrub_pause+0xd5/0xe4 kernel: [<ffffffff811f4f1a>] ? btrfs_commit_transaction+0x3f9/0x93c kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5a8c>] ? start_transaction+0x311/0x408 kernel: [<ffffffff811eed7e>] ? transaction_kthread+0xd1/0x16d kernel: [<ffffffff811eecad>] ? btrfs_alloc_root+0x34/0x34 kernel: [<ffffffff810420b3>] ? kthread+0xad/0xb5 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e kernel: [<ffffffff814315ac>] ? ret_from_fork+0x7c/0xb0 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e kernel: ---[ end trace b584e8ceb6422945 ]--- kernel: BTRFS error (device sdf) in btrfs_save_ino_cache:471: error 28 kernel: btrfs is forced readonly kernel: BTRFS warning (device sdf): Skipping commit of aborted transaction. kernel: BTRFS error (device sdf) in cleanup_transaction:1391: error 28 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
