Backtrace

WARNING: CPU: 6 PID: 25687 at block/bfq-iosched.c:602 bfqq_request_over_limit+0x11f/0x380
Modules linked in: uinput ntfs3 rfcomm snd_seq_dummy snd_hrtimer 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 ip6table_filter ip6_tables iptable_filter bnep sunrpc squashfs loop iwlmvm intel_rapl_msr intel_rapl_common mac80211 snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_generic snd_hda_codec_hdmi coretemp ledtrig_audio snd_hda_intel kvm_intel libarc4 snd_intel_dspcfg iTCO_wdt snd_intel_sdw_acpi kvm btusb snd_hda_codec btrtl btbcm intel_pmc_bxt iwlwifi at24 iTCO_vendor_support mei_hdcp mei_pxp btintel snd_hda_core snd_usb_audio
 irqbypass uvcvideo iwlmei rapl btmtk intel_cstate videobuf2_vmalloc snd_usbmidi_lib videobuf2_memops bluetooth intel_uncore videobuf2_v4l2 snd_hwdep snd_seq cfg80211 snd_rawmidi videobuf2_common pcspkr snd_seq_device snd_pcm videodev wmi_bmof i2c_i801 ses i2c_smbus enclosure snd_timer ecdh_generic lpc_ich joydev scsi_transport_sas mc mei_me rfkill snd mei soundcore acpi_pad zram ip_tables hid_logitech_hidpp hid_logitech_dj nouveau drm_ttm_helper ttm i2c_algo_bit drm_kms_helper uas sdhci_pci crct10dif_pclmul crc32_pclmul crc32c_intel mxm_wmi usb_storage cec cqhci drm ghash_clmulni_intel sdhci r8169 serio_raw video mmc_core wmi ipmi_devintf ipmi_msghandler fuse
CPU: 6 PID: 25687 Comm: StreamT~ns #684 Not tainted 5.17.4-100.fc34.x86_64 #1
Hardware name: System76, Inc. Serval WS/Serval WS, BIOS 1.03.12RSY4 04/20/2015
RIP: 0010:bfqq_request_over_limit+0x11f/0x380
Code: c1 49 8b 56 60 48 83 c0 01 48 85 d2 0f 84 07 02 00 00 49 89 d6 45 0f b6 7e 18 89 c6 45 84 ff 0f 84 b6 00 00 00 41 39 c4 7f ce <0f> 0b 44 8d 68 ff 41 39 c4 0f 85 f1 01 00 00 41 83 fd ff 0f 84 98
RSP: 0018:ffffac930de3b9e0 EFLAGS: 00010046
RAX: 0000000000000001 RBX: 0000000000000018 RCX: ffffac930de3ba08
RDX: ffff8d3621fda098 RSI: 0000000000000001 RDI: ffff8d3600ecdc30
RBP: ffff8d387a9221c0 R08: ffff8d3600c3edd0 R09: 0000000000000a00
R10: 0000000000003000 R11: ffffac930de3bb20 R12: 0000000000000001
R13: ffff8d3600ecd800 R14: ffff8d3621fda098 R15: 0000000000000001
FS:  00007f061cd86640(0000) GS:ffff8d390ed80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f06198d9000 CR3: 00000001ddc8e001 CR4: 00000000001706e0
Call Trace:
 <TASK>
 ? __btrfs_map_block+0x1e8/0xb80
 ? blk_rq_merge_ok+0x94/0x120
 ? bfq_allow_bio_merge+0x99/0xb0
 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
 submit_one_bio+0x44/0x70
 extent_writepages+0x9b/0x120
 do_writepages+0xbf/0x1b0
 filemap_fdatawrite_wbc+0x62/0x90
 filemap_fdatawrite_range+0x46/0x50
 start_ordered_ops.constprop.0+0x38/0x80
 btrfs_sync_file+0x7a/0x4b0
 __x64_sys_fsync+0x33/0x60
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f067e0a5ebb
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:00007f061cd85770 EFLAGS: 00000293 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007f060e84d1a0 RCX: 00007f067e0a5ebb
RDX: 0000000000000002 RSI: 00007f05fa403000 RDI: 0000000000000186
RBP: 00007f063cc92df0 R08: 0000000000000000 R09: 00000000054616c4
R10: 00000000054616c4 R11: 0000000000000293 R12: 00007f0618178a10
R13: 0000000000000000 R14: 00007f067ac2a688 R15: 00007f067ac2a688
 </TASK>