Backtrace

NMI watchdog: BUG: soft lockup - CPU#9 stuck for 22s! [python:10939]
Modules linked in: veth xt_nat ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink xt_addrtype br_netfilter nfnetlink_queue nfnetlink_log bluetooth rfkill overlay(T) ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vfat fat snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic sg snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq edac_mce_amd kvm_amd kvm irqbypass snd_seq_device ppdev snd_pcm
gpio_amdpt pinctrl_amd snd_timer snd crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr joydev soundcore i2c_piix4 parport_pc acpi_cpufreq parport i2c_designware_platform i2c_designware_core nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic nouveau video mxm_wmi i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ahci libahci libata crct10dif_pclmul crct10dif_common sdhci_acpi crc32c_intel iosf_mbi r8169 sdhci serio_raw drm_panel_orientation_quirks mmc_core wmi dm_mirror dm_region_hash dm_log dm_mod
CPU: 9 PID: 10939 Comm: python Kdump: loaded Tainted: G               ------------ T 3.10.0-1160.el7.x86_64 #1
Hardware name: Micro-Star International Co., Ltd. MS-7B89/B450M MORTAR (MS-7B89), BIOS 1.D0 01/06/2020
task: ffff93ac84f15280 ti: ffff93ab187d8000 task.ti: ffff93ab187d8000
RIP: 0010:[<ffffffffb023d383>]  [<ffffffffb023d383>] __mem_cgroup_uncharge_common+0x2b3/0x2f0
RSP: 0018:ffff93ab187dba38  EFLAGS: 00000202
RAX: 0000000000000003 RBX: ffffd327c944f980 RCX: 00000000003e337e
RDX: 0000000003289d66 RSI: 0000000000000001 RDI: 00000000003e337e
RBP: ffff93ab187dba68 R08: 0000000000000000 R09: 00003ffffffff000
R10: ffff93a86938fb00 R11: ffffd327d427a380 R12: ffffffffb01c8aa6
R13: ffff93ab187dba40 R14: 0000000000020200 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff93ac9ea40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fad2838f000 CR3: 00000004427ce000 CR4: 0000000000340fe0
Call Trace:
[<ffffffffb024177a>] mem_cgroup_uncharge_page+0x2a/0x30
[<ffffffffb02011a9>] page_remove_rmap+0xb9/0x160
[<ffffffffb01f0c88>] unmap_page_range+0x738/0xc80
[<ffffffffb01f1251>] unmap_single_vma+0x81/0xf0
[<ffffffffb01f2c89>] unmap_vmas+0x49/0x90
[<ffffffffb01fcc6c>] exit_mmap+0xac/0x1a0
[<ffffffffb0097b37>] mmput+0x67/0xf0
[<ffffffffb00a18b8>] do_exit+0x288/0xa20
[<ffffffffb00c6d10>] ? wake_up_atomic_t+0x30/0x30
[<ffffffffb00a20cf>] do_group_exit+0x3f/0xa0
[<ffffffffb00b307e>] get_signal_to_deliver+0x1ce/0x5e0
[<ffffffffb002c527>] do_signal+0x57/0x6f0
[<ffffffffb009e489>] ? vprintk_default+0x29/0x40
[<ffffffffb078e8b7>] ? __do_page_fault+0x477/0x500
[<ffffffffb002cc32>] do_notify_resume+0x72/0xc0
[<ffffffffb078a57c>] retint_signal+0x48/0x8c
Code: 4c 89 bb f8 0a 00 00 e9 8f fe ff ff 0f 1f 40 00 49 8b 87 f0 01 00 00 65 48 ff 40 20 f0 41 ff 87 74 01 00 00 e9 30 fe ff ff f3 90 <48> 8b 03 a8 01 75 f7 e9 98 fd ff ff 4d 85 ff 0f 84 dc fe ff ff