Backtrace

WARNING: CPU: 1 PID: 3285 at mm/page_alloc.c:3387 get_page_from_freelist+0xd16/0x1f00
Modules linked in: defcpci(OE) uinput uas usb_storage xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 rfkill ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc vfat fat snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core intel_rapl_msr intel_rapl_common joydev snd_hwdep x86_pkg_temp_thermal intel_powerclamp coretemp snd_seq snd_seq_device snd_pcm snd_timer kvm_intel snd soundcore ppdev kvm iTCO_wdt irqbypass rapl intel_pmc_bxt iTCO_vendor_support intel_cstate mei_hdcp ee1004 intel_uncore pcspkr i2c_i801 i2c_smbus parport_pc parport
 mei_me acpi_tad mei intel_pch_thermal acpi_pad ip_tables i915 drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel igb ghash_clmulni_intel serio_raw dca i2c_algo_bit video fuse
CPU: 1 PID: 3285 Comm: vmex2 Tainted: G           OE     5.9.11-100.fc32.x86_64 #1
Hardware name: Sanritz Automation SCA010/SCA010, BIOS Ver.1.10 06/09/2020
RIP: 0010:get_page_from_freelist+0xd16/0x1f00
Code: 44 24 18 48 89 44 24 78 48 c1 e0 04 48 89 44 24 20 f7 44 24 74 00 80 00 00 0f 84 0b f5 ff ff 83 7c 24 04 01 0f 86 00 f5 ff ff <0f> 0b e9 f9 f4 ff ff 48 8b 45 f8 a8 04 0f 84 bb fa ff ff 48 8b 44
RSP: 0018:ffffb8af01233cb8 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000085f2a RCX: 0000000000000004
RDX: 0000000000000004 RSI: ffff9a9d6efd5820 RDI: ffff9a9d6efd5680
RBP: 0000000000008004 R08: ffff9a9d6efd58f0 R09: ffffe6820218ac08
R10: 0000000000000afd R11: 0000000000000000 R12: 0000000000000afd
R13: 0000000000000001 R14: ffffb8af01233e00 R15: ffff9a9d6efd5680
FS:  00007f4bb84c2740(0000) GS:ffff9a9d5ec80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcff65e000 CR3: 00000004335b6001 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? put_dec+0x3a/0x80
 ? number+0x325/0x370
 __alloc_pages_nodemask+0x169/0x350
 dma_direct_alloc_pages+0x1b7/0x2c0
 defcpci_ioctl+0xbec/0xfb3 [defcpci]
 __x64_sys_ioctl+0x83/0xb0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4bb85e13bb
Code: 0f 1e fa 48 8b 05 dd aa 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ad aa 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcff650dc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffcff660dd0 RCX: 00007f4bb85e13bb
RDX: 00007ffcff660df0 RSI: 0000000040047807 RDI: 0000000000000003
RBP: 00007ffcff660e60 R08: 0000000000000000 R09: 0000000000000025
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000004000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000