Backtrace

BUG: unable to handle page fault for address: 000000000e2a0018
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 2 PID: 38 Comm: kcompactd0 Not tainted 5.11.12-300.fc34.x86_64 #1
Hardware name: System manufacturer System Product Name/B75M-A, BIOS 1101 07/31/2014
RIP: 0010:btrfs_release_extent_buffer_pages+0xb1/0x200
Code: 45 34 85 c0 0f 84 1e 01 00 00 f0 ff 4d 34 0f 84 82 00 00 00 48 83 c3 08 4c 39 eb 74 70 48 8b 2b 48 85 ed 74 ef 45 84 e4 74 af <48> 8b 45 18 48 8d b8 84 00 00 00 e8 df dc 71 00 48 8b 45 00 f6 c4
RSP: 0018:ffffa90680177b40 EFLAGS: 00010202
RAX: 0000000000000003 RBX: ffff8e5442aad0f0 RCX: 000000000000000c
RDX: ffffd3674412b4c7 RSI: 0000000000538bba RDI: ffff8e544b22dc24
RBP: 000000000e2a0000 R08: 0000000000000000 R09: 0000000000538bba
R10: ffffa90680177b40 R11: ffffa90680177b48 R12: 0000000000000001
R13: ffff8e54492aa9b8 R14: ffff8e5442aad000 R15: ffffd3674412b500
FS:  0000000000000000(0000) GS:ffff8e545bb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000e2a0018 CR3: 0000000006a10004 CR4: 00000000000606e0
Call Trace:
 release_extent_buffer+0x3e/0xb0
 btree_migratepage+0x45/0x70
 move_to_new_page+0x91/0x2c0
 ? __pagevec_lru_add+0x299/0x450
 ? page_counter_uncharge+0x36/0x50
 ? free_unref_page_commit+0x98/0x120
 migrate_pages+0xbe1/0xf30
 ? isolate_freepages_block+0x3c0/0x3c0
 ? split_map_pages+0x160/0x160
 compact_zone+0x646/0xdb0
 kcompactd_do_work+0x15a/0x250
 kcompactd+0xb1/0x350
 ? finish_wait+0x80/0x80
 ? kcompactd_do_work+0x250/0x250
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30
Modules linked in: uinput snd_seq_dummy snd_hrtimer 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 intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio kvm_intel snd_hda_intel snd_intel_dspcfg kvm uvcvideo soundwire_intel soundwire_generic_allocation snd_soc_core irqbypass snd_usb_audio snd_compress snd_pcm_dmaengine snd_usbmidi_lib soundwire_cadence snd_hda_codec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 rapl videobuf2_common videodev snd_rawmidi intel_cstate snd_hda_core ac97_bus mc mt7601u
 mac80211 snd_hwdep snd_seq cfg80211 joydev snd_seq_device libarc4 snd_pcm at24 eeepc_wmi asus_wmi intel_uncore mei_wdt snd_timer iTCO_wdt mei_hdcp intel_pmc_bxt iTCO_vendor_support sparse_keymap snd soundcore rfkill wmi_bmof i2c_i801 i2c_smbus pcspkr lpc_ich mei_me mei zram ip_tables i915 i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm ghash_clmulni_intel r8169 wmi video fuse
CR2: 000000000e2a0018