Description of problem: This btrfs error happened a lot of times while using a virtual machine. The filesystem is mounted with autodefrag option. Additional info: reporter: libreport-2.3.0 WARNING: CPU: 3 PID: 11081 at fs/btrfs/extent-tree.c:3799 btrfs_free_reserved_data_space+0xd1/0xe0 [btrfs]() Modules linked in: rfcomm fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep vfat fat snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_seq x86_pkg_temp_thermal snd_seq_device coretemp kvm_intel kvm snd_pcm iTCO_wdt iTCO_vendor_support acer_wmi sparse_keymap crct10dif_pclmul crc32_pclmul crc32c_intel arc4 ath3k ath9k ath9k_common ghash_clmulni_intel btusb bluetooth snd_timer uvcvideo ath9k_hw ath mac80211 snd cfg80211 soundcore serio_raw rfkill videobuf2_vmalloc videobuf2_memops videobuf2_core i2c_i801 sdhci_pci v4l2_common videodev media i2c_hid mei_me mei lpc_ich wmi shpchp mfd_core dw_dmac dw_dmac_core i2c_designware_platform i2c_designware_core btrfs xor raid6_pq radeon i915 i2c_algo_bit drm_kms_helper ttm drm tg3 ptp pps_core sdhci_acpi sdhci mmc_core video CPU: 3 PID: 11081 Comm: qemu-system-x86 Not tainted 3.17.4-302.fc21.x86_64 #1 Hardware name: Acer Aspire E1-572G/EA50_HW , BIOS V2.14 01/15/2014 0000000000000000 000000008e90992a ffff88016758bb38 ffffffff8173f929 0000000000000000 ffff88016758bb70 ffffffff810970ad ffff880094b8b000 0000000000002000 ffff88003f909a00 ffff88016758bc70 0000000000002000 Call Trace: [<ffffffff8173f929>] dump_stack+0x45/0x56 [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20 [<ffffffffa0420981>] btrfs_free_reserved_data_space+0xd1/0xe0 [btrfs] [<ffffffffa0421852>] btrfs_delalloc_release_space+0x22/0x30 [btrfs] [<ffffffffa043b3ab>] btrfs_direct_IO+0x2db/0x350 [btrfs] [<ffffffffa0447970>] ? btrfs_page_exists_in_range+0x140/0x140 [btrfs] [<ffffffffa043c7f0>] ? btrfs_real_readdir+0x5c0/0x5c0 [btrfs] [<ffffffff811932fe>] generic_file_direct_write+0xbe/0x1a0 [<ffffffffa044b6c1>] btrfs_file_write_iter+0x441/0x570 [btrfs] [<ffffffff810fc26a>] ? hrtimer_cancel+0x1a/0x30 [<ffffffffa044b280>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffff8120bcf0>] ? new_sync_read+0xd0/0xd0 [<ffffffff8120be38>] do_iter_readv_writev+0x78/0xc0 [<ffffffff8120d59e>] do_readv_writev+0xce/0x280 [<ffffffffa044b280>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffffa044b280>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffff8120d7d9>] vfs_writev+0x39/0x50 [<ffffffff8120db72>] SyS_pwritev+0xb2/0xf0 [<ffffffff81746ae9>] system_call_fastpath+0x16/0x1b
Created attachment 968388 [details] File: dmesg
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.18.3-201.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.
Description of problem: Install Fedora 21 in gnome-boxes with EFI boot, by following this wiki https://fedoraproject.org/wiki/Using_UEFI_with_QEMU Version-Release number of selected component: kernel Additional info: reporter: libreport-2.3.0 cmdline: BOOT_IMAGE=/vmlinuz-3.18.8-201.fc21.x86_64 root=/dev/mapper/fedora_y400-root ro rd.lvm.lv=fedora_y400/root rd.lvm.lv=fedora_y400/usr rd.lvm.lv=fedora_y400/swap rd.md.uuid=24e60d17:b66c824b:98b9ed36:c4bf6cbc rhgb quiet vconsole.font=Droid Sans Mono LANG=en_US.UTF-8 kernel: 3.18.8-201.fc21.x86_64 runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 4 PID: 1139 at fs/btrfs/extent-tree.c:3785 btrfs_free_reserved_data_space+0xd1/0xe0 [btrfs]() Modules linked in: hidp ccm authenc xfrm6_mode_tunnel xfrm4_mode_tunnel xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key rfcomm fuse xt_CHECKSUM tun nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE nf_nat_masquerade_ipv4 ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw binfmt_misc bnep arc4 btrfs xor btusb bluetooth iwlmvm intel_rapl x86_pkg_temp_thermal coretemp kvm_intel vfat mac80211 fat kvm snd_hda_codec_hdmi raid6_pq iTCO_wdt iTCO_vendor_support uvcvideo crct10dif_pclmul videobuf2_vmalloc videobuf2_core crc32_pclmul iwlwifi videobuf2_memops crc32c_intel v4l2_common videodev ghash_clmulni_intel joydev snd_hda_codec_realtek sdhci_pci serio_raw media snd_hda_codec_generic cfg80211 sdhci i2c_i801 mmc_core jmb38x_ms memstick snd_hda_intel snd_hda_controller ideapad_laptop snd_hda_codec sparse_keymap rfkill snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer mei_me snd mei lpc_ich shpchp soundcore mfd_core nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau raid0 i2c_algo_bit drm_kms_helper ttm drm alx mdio mxm_wmi video wmi CPU: 4 PID: 1139 Comm: qemu-system-x86 Not tainted 3.18.8-201.fc21.x86_64 #1 Hardware name: LENOVO 20192/INVALID, BIOS 6BCN44WW(V2.04) 05/21/2013 0000000000000000 0000000016b47009 ffff88001e69bad8 ffffffff8175b3fc 0000000000000000 0000000000000000 ffff88001e69bb18 ffffffff81098e91 0000000000040000 ffff88003f479000 000000000000a000 ffff88003f943600 Call Trace: [<ffffffff8175b3fc>] dump_stack+0x46/0x58 [<ffffffff81098e91>] warn_slowpath_common+0x81/0xa0 [<ffffffff81098faa>] warn_slowpath_null+0x1a/0x20 [<ffffffffa07ec311>] btrfs_free_reserved_data_space+0xd1/0xe0 [btrfs] [<ffffffffa07ed1a2>] btrfs_delalloc_release_space+0x22/0x30 [btrfs] [<ffffffffa0807a2b>] btrfs_direct_IO+0x33b/0x350 [btrfs] [<ffffffffa0814220>] ? btrfs_page_exists_in_range+0x140/0x140 [btrfs] [<ffffffffa0808ed0>] ? btrfs_real_readdir+0x5c0/0x5c0 [btrfs] [<ffffffff8119865e>] generic_file_direct_write+0xbe/0x1a0 [<ffffffffa0817d8e>] btrfs_file_write_iter+0x17e/0x540 [btrfs] [<ffffffff8101d949>] ? sched_clock+0x9/0x10 [<ffffffffa0817c10>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffff81213140>] ? new_sync_read+0xd0/0xd0 [<ffffffff81213288>] do_iter_readv_writev+0x78/0xc0 [<ffffffff81214a38>] do_readv_writev+0xd8/0x2b0 [<ffffffffa0817c10>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffffa0817c10>] ? __btrfs_buffered_write+0x660/0x660 [btrfs] [<ffffffff810c5040>] ? wake_up_state+0x20/0x20 [<ffffffff81214c99>] vfs_writev+0x39/0x50 [<ffffffff81215032>] SyS_pwritev+0xb2/0xf0 [<ffffffff81761e29>] system_call_fastpath+0x12/0x17