kernel: cgroup: fork rejected by pids controller in /user.slice/user-5272.slice/session-c2.scope kernel: general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] SMP NOPTI kernel: CPU: 2 PID: 9702 Comm: glmark2 Kdump: loaded Not tainted 5.9.0-rc4.mx64.343 #1 kernel: Hardware name: Dell Inc. OptiPlex 5080/032W55, BIOS 1.1.7 08/17/2020 kernel: RIP: 0010:free_block+0xdc/0x1f0 kernel: Code: 00 48 01 d0 48 c1 e8 0c 48 c1 e0 06 4c 01 e8 48 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 48 08 48 8b 50 10 4c 8d 78 08 <48> 89 51 08 48 89 0a 4c 89 da 48 2b 50 28 4c 89 60 08 48 89 68 10 kernel: RSP: 0018:ffffc9000cf17af0 EFLAGS: 00010046 kernel: RAX: ffffea0009654c00 RBX: 0000000080000000 RCX: dead000000000100 kernel: RDX: dead000000000122 RSI: ffff88842d2b3fc0 RDI: ffff88842b440300 kernel: RBP: dead000000000122 R08: ffffc9000cf17b68 R09: ffff88842b441280 kernel: R10: 0000000000000002 R11: ffff888259530d80 R12: dead000000000100 kernel: R13: ffffea0000000000 R14: ffff88842d2b3ff0 R15: ffffea0009654c08 kernel: FS: 0000000000000000(0000) GS:ffff88842d280000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kernel: CR2: 00007ff228b8c080 CR3: 000000000440a004 CR4: 00000000007706e0 kernel: PKRU: 55555554 kernel: Call Trace: kernel: ___cache_free+0x2f0/0x490 kernel: kfree+0x90/0x120 kernel: kmem_freepages+0xa5/0xf0 kernel: slab_destroy+0x19/0x50 kernel: slabs_destroy+0x55/0x80 kernel: ___cache_free+0x30b/0x490 kernel: kfree+0x90/0x120 kernel: kmem_freepages+0xa5/0xf0 kernel: slab_destroy+0x19/0x50 kernel: slabs_destroy+0x55/0x80 kernel: ___cache_free+0x30b/0x490 kernel: kmem_cache_free.part.67+0x19/0x80 kernel: remove_vma+0x5a/0x60 kernel: exit_mmap+0xd5/0x180 kernel: mmput+0x40/0xf0 kernel: do_exit+0x319/0xb70 kernel: do_group_exit+0x3a/0x90 kernel: __x64_sys_exit_group+0x14/0x20 kernel: do_syscall_64+0x33/0x40 kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 kernel: RIP: 0033:0x7ff228694e36 kernel: Code: Bad RIP value. kernel: RSP: 002b:00007ffda3ec48b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 kernel: RAX: ffffffffffffffda RBX: 00007ff22897f740 RCX: 00007ff228694e36 kernel: RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 kernel: RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80 kernel: R10: 000000000000079a R11: 0000000000000246 R12: 00007ff22897f740 kernel: R13: 0000000000000001 R14: 00007ff228988628 R15: 0000000000000000 kernel: Modules linked in: rpcsec_gss_krb5 nfsv4 nfs 8021q garp stp mrp llc snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio amdgpu i915 gpu_sched ttm iosf_mbi drm_kms_helper drm input_leds snd_hda_codec_hdmi snd_hda_intel led_class snd_intel_dspcfg snd_hda_codec intel_gtt snd_hda_core fb_sys_fops x86_pkg_temp_thermal snd_pcm snd_timer kvm_intel syscopyarea sysfillrect wmi_bmof iTCO_wdt snd deflate kvm iTCO_vendor_support sysimgblt efi_pstore irqbypass wmi soundcore crc32c_intel video pstore nfsd auth_rpcgss nfs_acl lockd grace sunrpc efivarfs ip_tables x_tables unix ipv6 autofs4 kernel: ---[ end trace 99d0cd52d1c986f3 ]--- kernel: RIP: 0010:free_block+0xdc/0x1f0 kernel: Code: 00 48 01 d0 48 c1 e8 0c 48 c1 e0 06 4c 01 e8 48 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 48 08 48 8b 50 10 4c 8d 78 08 <48> 89 51 08 48 89 0a 4c 89 da 48 2b 50 28 4c 89 60 08 48 89 68 10 kernel: RSP: 0018:ffffc9000cf17af0 EFLAGS: 00010046 kernel: RAX: ffffea0009654c00 RBX: 0000000080000000 RCX: dead000000000100 kernel: RDX: dead000000000122 RSI: ffff88842d2b3fc0 RDI: ffff88842b440300 kernel: RBP: dead000000000122 R08: ffffc9000cf17b68 R09: ffff88842b441280 kernel: R10: 0000000000000002 R11: ffff888259530d80 R12: dead000000000100 kernel: R13: ffffea0000000000 R14: ffff88842d2b3ff0 R15: ffffea0009654c08 kernel: FS: 0000000000000000(0000) GS:ffff88842d280000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kernel: CR2: 00007ff228b8c080 CR3: 0000000348352005 CR4: 00000000007706e0 kernel: PKRU: 55555554 kernel: Fixing recursive fault but reboot is needed!