http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 Christopher HORLER changed: What |Removed |Added ---------------------------------------------------------------------------- Hardware|Other |x86-64 OS|Other |openSUSE 42.2 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c4 --- Comment #4 from Paul Neuwirth --- Comment on attachment 711296 --> http://bugzilla.opensuse.org/attachment.cgi?id=711296 dmesg output had the same effect here twice. cannot be related to laptopmode/hibernation (not in use). it's clearly related to btrfs. in my case I use btrfs with raid 1: # btrfs filesystem show / Label: none uuid: 3d8fa570-b048-4d41-80e2-690a715d9e09 Total devices 2 FS bytes used 42.35GiB devid 1 size 266.09GiB used 44.03GiB path /dev/sda2 devid 2 size 266.09GiB used 44.03GiB path /dev/sdb2 # btrfs filesystem usage / Overall: Device size: 532.19GiB Device allocated: 88.06GiB Device unallocated: 444.12GiB Device missing: 0.00B Used: 84.75GiB Free (estimated): 222.87GiB (min: 222.87GiB) Data ratio: 2.00 Metadata ratio: 2.00 Global reserve: 416.00MiB (used: 0.00B) Data,RAID1: Size:42.00GiB, Used:41.19GiB /dev/sda2 42.00GiB /dev/sdb2 42.00GiB Metadata,RAID1: Size:2.00GiB, Used:1.19GiB /dev/sda2 2.00GiB /dev/sdb2 2.00GiB System,RAID1: Size:32.00MiB, Used:16.00KiB /dev/sda2 32.00MiB /dev/sdb2 32.00MiB Unallocated: /dev/sda2 222.06GiB /dev/sdb2 222.06GiB -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c7 --- Comment #7 from Christopher HORLER --- I've continued to try vanilla kernels, today on upgrading to 4.11.0-rc3 (4.11.0-rc3-284-gd07c6f4-1.g370e9dc-vanilla). On initial boot the new kernel repeatedly triggered a WARNING! (typical example here - many more the same in dmesg) [ 375.479231] WARNING: CPU: 1 PID: 97 at ../fs/btrfs/qgroup.c:2472 btrfs_qgroup_free_refroot+0x167/0x190 [btrfs] [ 375.479232] Modules linked in: ccm fuse rfcomm nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT nf_reject_ipv4 iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack libcrc32c ip6table_filter ip6_tables x_tables bnep arc4 brcmsmac cordic brcmutil uvcvideo btusb btrtl b43 mac80211 btbcm btintel videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core cfg80211 videodev bluetooth ssb mmc_core pcmcia pcmcia_core snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep pcspkr tpm_tis acpi_cpufreq tpm_tis_core kvm_amd [ 375.479283] samsung_laptop kvm battery button ac snd_pcm bcma tpm rfkill joydev snd_timer r8169 irqbypass video sp5100_tco mii snd wmi i2c_piix4 k10temp shpchp soundcore ohci_pci btrfs xor raid6_pq serio_raw ehci_pci ohci_hcd ehci_hcd usbcore amdkfd amd_iommu_v2 radeon i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua [ 375.479320] CPU: 1 PID: 97 Comm: kworker/u4:5 Tainted: G W 4.11.0-rc3-284-gd07c6f4-1.g370e9dc-vanilla #1 [ 375.479321] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 305U1A/305U1A/305U1A, BIOS 06PS.M507.20121024.LEO 10/24/2012 [ 375.479358] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs] [ 375.479361] Call Trace: [ 375.479364] dump_stack+0x63/0x83 [ 375.479367] __warn+0xcb/0xf0 [ 375.479371] warn_slowpath_null+0x1d/0x20 [ 375.479407] btrfs_qgroup_free_refroot+0x167/0x190 [btrfs] [ 375.479439] __btrfs_run_delayed_refs+0x355/0x1340 [btrfs] [ 375.479442] ? ttwu_do_wakeup+0x1e/0x170 [ 375.479475] btrfs_run_delayed_refs+0x8a/0x2a0 [btrfs] [ 375.479507] delayed_ref_async_start+0x98/0xb0 [btrfs] [ 375.479545] btrfs_scrubparity_helper+0xca/0x350 [btrfs] [ 375.479548] ? pwq_activate_delayed_work+0x41/0xc0 [ 375.479586] btrfs_extent_refs_helper+0xe/0x10 [btrfs] [ 375.479590] process_one_work+0x193/0x470 [ 375.479593] worker_thread+0x4e/0x490 [ 375.479597] kthread+0x101/0x140 [ 375.479600] ? process_one_work+0x470/0x470 [ 375.479603] ? kthread_create_on_node+0x40/0x40 [ 375.479606] ret_from_fork+0x2c/0x40 [ 375.479609] ---[ end trace 07d5492e03a5cbee ]--- [ 375.479620] ------------[ cut here ]------------ dmesg attached After reboot no further warnings. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c9 --- Comment #9 from Christopher HORLER --- Created attachment 718776 --> http://bugzilla.opensuse.org/attachment.cgi?id=718776&action=edit qgroup warnings -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c11 --- Comment #11 from Christopher HORLER --- in fact the WARNING continues to be triggered, but so far no lock-up. Perhaps the patch referenced by the above patch is relevant. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c13 --- Comment #13 from Christopher HORLER --- I will see about compiling a kernel with this patch: https://patchwork.kernel.org/patch/9619965/ Maybe the tracing might shed some light on the root cause. (Unless it's obvious to anyone?) -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1020030 http://bugzilla.opensuse.org/show_bug.cgi?id=1020030#c15 --- Comment #15 from Christopher HORLER --- Okay, thanks for the update! -- You are receiving this mail because: You are on the CC list for the bug.