Backtrace

WARNING: CPU: 2 PID: 63861 at block/bfq-iosched.c:606 bfqq_request_over_limit+0x31f/0x380
Modules linked in: uinput xt_nat rfcomm snd_seq_dummy snd_hrtimer veth nf_conntrack_netlink xt_addrtype br_netfilter xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink overlay ip6table_filter ip6_tables iptable_filter bnep sunrpc vfat fat squashfs loop intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp iTCO_wdt snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi mei_pxp snd_soc_core mei_hdcp coretemp intel_pmc_bxt snd_compress iTCO_vendor_support iwlmvm snd_hda_codec_hdmi kvm_intel
 intel_rapl_msr mac80211 ac97_bus snd_hda_codec_realtek btusb snd_hda_codec_generic kvm ledtrig_audio btrtl snd_pcm_dmaengine libarc4 btbcm irqbypass snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi rapl btintel snd_hda_codec uvcvideo btmtk intel_cstate snd_hda_core videobuf2_vmalloc snd_hwdep videobuf2_memops iwlwifi videobuf2_v4l2 snd_seq intel_uncore videobuf2_common snd_seq_device bluetooth iwlmei videodev snd_pcm cfg80211 asus_nb_wmi mc asus_wmi snd_timer ecdh_generic sparse_keymap platform_profile mei_me pcspkr snd processor_thermal_device_pci_legacy rfkill joydev processor_thermal_device soundcore i2c_i801 i2c_smbus processor_thermal_rfim processor_thermal_mbox mei idma64 processor_thermal_rapl intel_rapl_common intel_xhci_usb_role_switch intel_pch_thermal intel_soc_dts_iosf int3403_thermal int340x_thermal_zone acpi_als industrialio_triggered_buffer kfifo_buf industrialio asus_wireless int3400_thermal acpi_thermal_rel acpi_pad zram ip_tables hid_logitech_hidpp i915
 i2c_algo_bit drm_kms_helper cec ttm hid_logitech_dj hid_multitouch crct10dif_pclmul crc32_pclmul crc32c_intel drm serio_raw ghash_clmulni_intel wmi i2c_hid_acpi i2c_hid video ipmi_devintf ipmi_msghandler fuse
CPU: 2 PID: 63861 Comm: journal-offline Tainted: G          I       5.17.4-100.fc34.x86_64 #1
Hardware name: ASUSTeK COMPUTER INC. UX330UA/UX330UA, BIOS UX330UA.201 06/07/2016
RIP: 0010:bfqq_request_over_limit+0x31f/0x380
Code: 8b 7c 24 08 e8 52 77 bb ff 58 e8 1c 29 b2 ff 48 8d 5c 24 28 e9 ca fe ff ff 44 8b 6c 24 24 41 39 f5 0f 84 28 fe ff ff 41 89 f5 <0f> 0b e9 08 fe ff ff 4c 8d a4 24 a8 00 00 00 44 89 c1 be 10 00 00
RSP: 0018:ffffad0c4643f9e0 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000018 RCX: ffffad0c4643fa08
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff946b85ff0c30
RBP: ffff946c3528cb40 R08: ffff946b875e6858 R09: ffff946b86eea0d0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000000 R14: ffff946c3528cbc8 R15: 0000000000000001
FS:  00007f8bff314640(0000) GS:ffff946cebd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5872ab9000 CR3: 0000000106ee4003 CR4: 00000000003706e0
Call Trace:
 <TASK>
 ? __btrfs_map_block+0x1e8/0xb80
 bfq_limit_depth+0x125/0x1d0
 __blk_mq_alloc_requests+0x23b/0x2a0
 blk_mq_submit_bio+0x3da/0x640
 submit_bio_noacct+0x232/0x280
 btrfs_map_bio+0x17c/0x490
 btrfs_submit_data_bio+0x10a/0x1f0
 ? newidle_balance+0x2bd/0x3e0
 submit_one_bio+0x44/0x70
 extent_writepages+0x9b/0x120
 do_writepages+0xbf/0x1b0
 ? blk_mq_flush_plug_list+0x10a/0x2b0
 filemap_fdatawrite_wbc+0x62/0x90
 filemap_fdatawrite_range+0x46/0x50
 start_ordered_ops.constprop.0+0x38/0x80
 btrfs_sync_file+0x136/0x4b0
 __x64_sys_fsync+0x33/0x60
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8c068a2ebb
Code: 4a 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 53 f7 ff ff 8b 7c 24 0c 41 89 c0 b8 4a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 b1 f7 ff ff 8b 44
RSP: 002b:00007f8bff313a10 EFLAGS: 00000293 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 000055c10dadcc20 RCX: 00007f8c068a2ebb
RDX: 0000000000000002 RSI: 00007f8c06b83cbc RDI: 0000000000000018
RBP: 00007f8c06b858f0 R08: 0000000000000000 R09: 00007f8bff314640
R10: 000000000000001c R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffec03ad1cf R14: 0000000000000000 R15: 00007f8bff314640
 </TASK>