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Description of problem: no idea what happened, while playing chess in Firefox Additional info: reporter: libreport-2.6.3 WARNING: CPU: 0 PID: 24666 at fs/fs-writeback.c:2065 __mark_inode_dirty+0x22d/0x2f0() bdi-block not registered Modules linked in: uas usb_storage vhost_net vhost macvtap macvlan rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack tun bridge ebtable_filter ebtables ip6table_filter ip6_tables bnep dm_crypt xfs libcrc32c btrfs xor intel_rapl iosf_mbi iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal mxm_wmi coretemp kvm_intel kvm vfat fat snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul crc32c_intel snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm raid6_pq btusb usblp btrtl btbcm btintel snd_timer bluetooth snd joydev soundcore rfkill i2c_i801 mei_me mei shpchp lpc_ich video tpm_infineon wmi tpm_tis tpm nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc amdkfd amd_iommu_v2 radeon i2c_algo_bit drm_kms_helper serio_raw ttm 8021q garp stp drm llc mrp r8169 mii fjes CPU: 0 PID: 24666 Comm: qemu-system-x86 Not tainted 4.3.4-300.fc23.x86_64 #1 Hardware name: MSI MS-7817/H81M-P33 (MS-7817), BIOS V1.7 07/18/2014 0000000000000000 000000004858e551 ffff88009ab4faf0 ffffffff813a625f ffff88009ab4fb38 ffff88009ab4fb28 ffffffff810a07c2 0000000000000000 ffff880212a581e0 ffff8800dce2a3d0 0000000000000000 0000000000000000 Call Trace: [<ffffffff813a625f>] dump_stack+0x44/0x55 [<ffffffff810a07c2>] warn_slowpath_common+0x82/0xc0 [<ffffffff810a085c>] warn_slowpath_fmt+0x5c/0x80 [<ffffffff8124d60d>] ? locked_inode_to_wb_and_lock_list+0x4d/0xc0 [<ffffffff81250a3d>] __mark_inode_dirty+0x22d/0x2f0 [<ffffffff812581fa>] mark_buffer_dirty+0x8a/0x100 [<ffffffff812589aa>] __block_commit_write.isra.22+0x7a/0xb0 [<ffffffff81259d13>] block_write_end+0x33/0x70 [<ffffffff81259d81>] generic_write_end+0x31/0xb0 [<ffffffffa0887a39>] xfs_vm_write_end+0x29/0x80 [xfs] [<ffffffff811a5934>] generic_perform_write+0x114/0x1c0 [<ffffffffa0894fb7>] xfs_file_buffered_aio_write+0x127/0x250 [xfs] [<ffffffffa08951d5>] xfs_file_write_iter+0xf5/0x110 [xfs] [<ffffffff81223849>] __vfs_write+0xc9/0x110 [<ffffffff81223ec6>] vfs_write+0xa6/0x1a0 [<ffffffff81224d35>] SyS_pwrite64+0x95/0xb0 [<ffffffff8178182e>] entry_SYSCALL_64_fastpath+0x12/0x71
Created attachment 1121145 [details] File: dmesg
Hmm, it seems one of my disks dies slowly.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is 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 23 kernel bugs. Fedora 23 has now been rebased to 4.7.4-100.fc23. 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 have moved on to Fedora 24 or 25, and are still experiencing this issue, please change the version to Fedora 24 or 25. If you experience different issues, please open a new bug report for those.