Backtrace

WARNING: CPU: 1 PID: 203824 at block/bfq-iosched.c:606 bfqq_request_over_limit+0x31f/0x380
Modules linked in: 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 sunrpc binfmt_misc vfat fat snd_hda_codec_realtek snd_hda_codec_generic nvidia_drm(POE) ledtrig_audio snd_hda_codec_hdmi nvidia_modeset(POE) snd_hda_intel ucsi_ccg snd_intel_dspcfg iTCO_wdt snd_intel_sdw_acpi typec_ucsi intel_rapl_msr intel_pmc_bxt intel_rapl_common uvcvideo nvidia_uvm(POE) typec mei_pxp iTCO_vendor_support mei_hdcp at24 snd_hda_codec videobuf2_vmalloc snd_usb_audio videobuf2_memops snd_usbmidi_lib snd_hda_core
 snd_rawmidi videobuf2_v4l2 snd_hwdep x86_pkg_temp_thermal videobuf2_common intel_powerclamp snd_seq eeepc_wmi snd_seq_device nvidia(POE) videodev coretemp asus_wmi snd_pcm rapl sparse_keymap mc platform_profile joydev intel_cstate rfkill wmi_bmof intel_uncore snd_timer i2c_i801 pcspkr i2c_smbus mei_me snd mei i2c_nvidia_gpu soundcore lpc_ich zram ip_tables i915 i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel ttm drm ghash_clmulni_intel r8169 wmi video ipmi_devintf ipmi_msghandler fuse
CPU: 1 PID: 203824 Comm: IndexedDB #734 Tainted: P           OE     5.17.4-100.fc34.x86_64 #1
Hardware name: ASUS All Series/H87-PLUS, BIOS 0806 01/20/2014
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:ffff9ec98ac47990 EFLAGS: 00010002
RAX: 0000000000000005 RBX: 0000000000000030 RCX: ffff9ec98ac479b8
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8ec489bbcc30
RBP: ffff8ec48347c000 R08: ffff8ec48863a6b8 R09: 0000000000000a00
R10: 0000000000001000 R11: 0000000000000801 R12: 0000000000000006
R13: 0000000000000004 R14: ffff8ec4a87a4898 R15: 0000000000000001
FS:  00007f52a003a640(0000) GS:ffff8ec79fa40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f526fe1b000 CR3: 00000003bd502004 CR4: 00000000001706e0
Call Trace:
 <TASK>
 ? bio_associate_blkg_from_css+0x1b7/0x300
 ? kmem_cache_alloc+0x16c/0x2d0
 bfq_limit_depth+0x125/0x1d0
 __blk_mq_alloc_requests+0x23b/0x2a0
 blk_mq_submit_bio+0x3da/0x640
 submit_bio_noacct+0xbb/0x280
 ext4_io_submit+0x48/0x60
 ext4_writepages+0x249/0x1050
 ? jbd2_journal_stop+0x12a/0x2c0
 ? __ext4_journal_stop+0x37/0xa0
 ? preempt_count_add+0x68/0xa0
 ? _raw_spin_lock+0x13/0x30
 ? __mark_inode_dirty+0x165/0x350
 do_writepages+0xbf/0x1b0
 filemap_fdatawrite_wbc+0x62/0x90
 file_write_and_wait_range+0x78/0xc0
 ext4_sync_file+0x73/0x370
 __x64_sys_fsync+0x33/0x60
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f52ed1c1ebb
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:00007f52a0038ab0 EFLAGS: 00000293 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007f526984cfa0 RCX: 00007f52ed1c1ebb
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000060
RBP: 000000000000022f R08: 0000000000000000 R09: 00007f52e8b9a840
R10: 00007ffc2dfc4080 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000002 R14: 00007f526cfb4420 R15: 00007f528bb81710
 </TASK>