Backtrace

BUG: unable to handle page fault for address: 0000000000004034
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP NOPTI
CPU: 2 PID: 9955 Comm: Compositor Tainted: G        W         5.12.12-300.fc34.x86_64 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-3.fc34 04/01/2014
RIP: 0010:find_lock_entries+0x88/0x410
Code: 41 00 48 89 c5 48 3d 06 04 00 00 74 e8 48 3d 02 04 00 00 0f 84 75 01 00 00 48 85 c0 0f 84 24 01 00 00 a8 01 0f 85 72 01 00 00 <8b> 40 34 85 c0 0f 84 59 01 00 00 8d 50 01 f0 0f b1 55 34 75 ee 48
RSP: 0018:ffffb0b904647c38 EFLAGS: 00010246
RAX: 0000000000004000 RBX: fffffffffffffffe RCX: 0000000000000000
RDX: 000000000000001c RSI: ffff8c388fec0920 RDI: ffffb0b904647c40
RBP: 0000000000004000 R08: fffffffffffffffe R09: ffffffffffffffc0
R10: 0000000000000700 R11: 0000000000000000 R12: ffffb0b904647d70
R13: 000000000000003c R14: ffffb0b904647cf8 R15: ffff8c3883a6f758
FS:  00007f306d67f640(0000) GS:ffff8c38aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000004034 CR3: 00000002031b4000 CR4: 00000000000006e0
Call Trace:
 shmem_undo_range+0xc6/0x710
 shmem_evict_inode+0xd8/0x240
 ? var_wake_function+0x20/0x20
 evict+0xd1/0x180
 __dentry_kill+0xe1/0x180
 __fput+0xe3/0x240
 task_work_run+0x65/0xa0
 exit_to_user_mode_prepare+0x218/0x220
 syscall_exit_to_user_mode+0x18/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f309818a04b
Code: 8b 15 31 7e 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb 89 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 7d 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007f306d67e708 EFLAGS: 00000206 ORIG_RAX: 000000000000000b
RAX: 0000000000000000 RBX: 00007f30497c8da0 RCX: 00007f309818a04b
RDX: 0000000000002000 RSI: 0000000000041000 RDI: 00007f30420d8000
RBP: 00007f30497c8d80 R08: 00007f3090f10a20 R09: 0000000000000a66
R10: 00007f3095225ce0 R11: 0000000000000206 R12: 00007f30497c8d80
R13: 0000000000000001 R14: 00007f306d67e79c R15: 0000000000000001
Modules linked in: uinput 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 rfkill nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc iTCO_wdt intel_pmc_bxt iTCO_vendor_support uvcvideo edac_mce_amd snd_usb_audio snd_hda_codec_generic videobuf2_vmalloc videobuf2_memops ledtrig_audio videobuf2_v4l2 videobuf2_common snd_hda_intel snd_intel_dspcfg snd_usbmidi_lib videodev snd_intel_sdw_acpi joydev snd_hda_codec snd_rawmidi mc snd_hda_core virtio_balloon snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd lpc_ich i2c_i801 soundcore
 i2c_smbus pcspkr zram ip_tables virtio_gpu virtio_dma_buf drm_kms_helper serio_raw cec virtio_scsi virtio_blk drm virtio_net net_failover virtio_console failover qemu_fw_cfg fuse
CR2: 0000000000004034