https://bugzilla.novell.com/show_bug.cgi?id=751688 https://bugzilla.novell.com/show_bug.cgi?id=751688#c0 Summary: btrfs filesystem balance results in bug in /home/abuild/rpmbuild/BUILD/kernel-desktop-3.1.9/linux -3.1/fs/btrfs/relocation.c:3787 relocate_block_group+0x4a6/0x560 [btrfs]() Classification: openSUSE Product: openSUSE 12.1 Version: Final Platform: x86-64 OS/Version: openSUSE 12.1 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: guido.juckeland@tu-dresden.de QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.78 Safari/535.11 Whenever I try to rebalance my root-fs (which is btrfs) I see a number of the following bugs via syslog: Mar 10 21:08:43 denkbrett kernel: [70267.675658] ------------[ cut here ]------------ Mar 10 21:08:43 denkbrett kernel: [70267.675705] WARNING: at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.1.9/linux-3.1/fs/btrfs/relocation.c:3787 relocate_block_group+0x4a6/0x560 [btrfs]() Mar 10 21:08:43 denkbrett kernel: [70267.675707] Hardware name: 3323REG Mar 10 21:08:43 denkbrett kernel: [70267.675708] Modules linked in: qcserial usb_wwan usbserial nls_iso8859_1 nls_cp437 vfat fat ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit af_packet rfcomm bnep vboxpci vboxnetadp vboxnetflt vboxdrv ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf microcode binfmt_misc snd_hda_codec_hdmi snd_hda_codec_conexant ecb hdj_mod uvcvideo videodev snd_rawmidi snd_seq_device sr_mod arc4 snd_hda_intel btusb v4l2_compat_ioctl32 snd_hda_codec snd_hwdep snd_pcm bluetooth thinkpad_acpi cdrom snd_timer iTCO_wdt snd sg iwlagn i2c_i801 mac80211 mei(C) pcspkr soundcore tpm_tis intel_ips cfg80211 rfkill tpm tpm_bios snd_page_alloc iTCO_vendor_support ac battery e1000e wmi autofs4 btrfs zlib_deflate i9 Mar 10 21:08:43 denkbrett kernel: 15 drm_kms_helper drm i2c_algo_bit thermal button video processor thermal_sys [last unloaded: usbserial] Mar 10 21:08:43 denkbrett kernel: [70267.675754] Pid: 5306, comm: btrfs Tainted: G WC 3.1.9-1.4-desktop #1 Mar 10 21:08:43 denkbrett kernel: [70267.675755] Call Trace: Mar 10 21:08:43 denkbrett kernel: [70267.675768] [<ffffffff810043fa>] dump_trace+0xaa/0x2b0 Mar 10 21:08:43 denkbrett kernel: [70267.675775] [<ffffffff815843d3>] dump_stack+0x69/0x6f Mar 10 21:08:43 denkbrett kernel: [70267.675781] [<ffffffff8105390b>] warn_slowpath_common+0x7b/0xc0 Mar 10 21:08:43 denkbrett kernel: [70267.675792] [<ffffffffa01aae66>] relocate_block_group+0x4a6/0x560 [btrfs] Mar 10 21:08:43 denkbrett kernel: [70267.675870] [<ffffffffa01ab0e3>] btrfs_relocate_block_group+0x1c3/0x300 [btrfs] Mar 10 21:08:43 denkbrett kernel: [70267.675943] [<ffffffffa018a69b>] btrfs_relocate_chunk.isra.45+0x4b/0x420 [btrfs] Mar 10 21:08:43 denkbrett kernel: [70267.676001] [<ffffffffa018dc6f>] btrfs_balance+0x1df/0x270 [btrfs] Mar 10 21:08:43 denkbrett kernel: [70267.676059] [<ffffffffa01959f0>] btrfs_ioctl+0x590/0x6e0 [btrfs] Mar 10 21:08:43 denkbrett kernel: [70267.676190] [<ffffffff811653e5>] do_vfs_ioctl+0x85/0x2e0 Mar 10 21:08:43 denkbrett kernel: [70267.676196] [<ffffffff811656d8>] sys_ioctl+0x98/0xa0 Mar 10 21:08:43 denkbrett kernel: [70267.676201] [<ffffffff815a4c12>] system_call_fastpath+0x16/0x1b Mar 10 21:08:43 denkbrett kernel: [70267.676207] [<00007f5b81a5dd67>] 0x7f5b81a5dd66 Mar 10 21:08:43 denkbrett kernel: [70267.676209] ---[ end trace bb88747ca473d205 ]--- I did the rebalance hoping that I could gain some room on my rather small SSD: denkbrett:~ # df -h Filesystem Size Used Avail Use% Mounted on rootfs 21G 19G 404M 98% / .. /dev/sda3 21G 19G 404M 98% / .. /dev/sda1 197M 31M 157M 17% /boot /dev/sda4 98G 87G 9.8G 90% /home The command seems to run fine, but the bugs appear in syslog. Also the result is not really convincing. I had hoped to gain some more space... Reproducible: Always Steps to Reproduce: 1. run "btrfs filesystem balance /" on a btrfs rootfs Actual Results: command runs but above mentioned kernel bugs appear Expected Results: no kernel bugs -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.