I found this syslog

Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612939] User process fault: interruption code 0010 ilc:3 in zipl[1000000+26000]
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612949] Failing address: 0000000000000000 TEID: 0000000000000800
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612951] Fault in primary space mode while using user ASCE.
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612954] AS:00000000852301c7 R3:00000000827bc007 S:0000000000000020 
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612958] CPU: 1 PID: 1888 Comm: zipl Not tainted 5.15.0-53-generic #59-Ubuntu
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612961] Hardware name: IBM 3932 LA2 A00 (KVM/Linux)
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612962] User PSW : 0705000180000000 0000000001008938
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612963]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:1 AS:0 CC:0 PM:0 RI:0 EA:3
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612966] User GPRS: 0000000000000000 0000000000000000 0000000000000000 000000000000000f
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612967]            0000000000000380 0000000000000000 0000000001b28040 000003ff00000000
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612968]            0000000000000068 0000000001b28250 000003ff85c70720 0000000000000001
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612969]            0000000001b28040 0000000001b28250 00000000010088de 000003ffe7f7f1a0
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976] User Code: 000000000100892a: a72b0010		aghi	%r2,16
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]            000000000100892e: e70000300081	vfene	%v0,%v0,%v0,0,3
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]           #0000000001008934: a784000c		brc	8,000000000100894c
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]           >0000000001008938: e70210004006	vl	%v0,0(%r2,%r1),4
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]            000000000100893e: a72b0010		aghi	%r2,16
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]            0000000001008942: e70000300081	vfene	%v0,%v0,%v0,0,3
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]            0000000001008948: a774fff8		brc	7,0000000001008938
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612976]            000000000100894c: e75000070021	vlgv	%r5,%v0,7,0
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612987] Last Breaking-Event-Address:
Nov 19 01:18:15 a257ubtu20seon04 kernel: [ 5473.612987]  [<0000000001008a2a>] 0x1008a2a
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312528] User process fault: interruption code 0010 ilc:3 in zipl[1000000+26000]
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312541] Failing address: 0000000000000000 TEID: 0000000000000800
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312542] Fault in primary space mode while using user ASCE.
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312545] AS:00000000825441c7 R3:0000000081fa0007 S:0000000000000020 
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312549] CPU: 0 PID: 1904 Comm: zipl Not tainted 5.15.0-53-generic #59-Ubuntu
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312551] Hardware name: IBM 3932 LA2 A00 (KVM/Linux)
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312552] User PSW : 0705000180000000 0000000001008938
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312554]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:1 AS:0 CC:0 PM:0 RI:0 EA:3
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312556] User GPRS: 0000000000000000 0000000000000000 0000000000000000 000000000000000f
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312558]            0000000000000380 0000000000000000 0000000002bbc040 000003ff00000000
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312559]            0000000000000068 0000000002bbc250 000003ffbbd70720 0000000000000001
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312560]            0000000002bbc040 0000000002bbc250 00000000010088de 000003fff0e7f160
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567] User Code: 000000000100892a: a72b0010		aghi	%r2,16
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]            000000000100892e: e70000300081	vfene	%v0,%v0,%v0,0,3
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]           #0000000001008934: a784000c		brc	8,000000000100894c
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]           >0000000001008938: e70210004006	vl	%v0,0(%r2,%r1),4
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]            000000000100893e: a72b0010		aghi	%r2,16
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]            0000000001008942: e70000300081	vfene	%v0,%v0,%v0,0,3
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]            0000000001008948: a774fff8		brc	7,0000000001008938
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312567]            000000000100894c: e75000070021	vlgv	%r5,%v0,7,0
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312578] Last Breaking-Event-Address:
Nov 19 01:18:55 a257ubtu20seon04 kernel: [ 5513.312579]  [<0000000001008a2a>] 0x1008a2a
ubuntu@a257ubtu20seon04:/var/log$ 



ERROR: apport (pid 1905) Sat Nov 19 01:18:55 2022: called for pid 1904, signal 11, core limit 0, dump mode 1
ERROR: apport (pid 1905) Sat Nov 19 01:18:55 2022: executable: /usr/sbin/zipl (command line "zipl -V")
ERROR: apport (pid 1905) Sat Nov 19 01:18:55 2022: apport: report /var/crash/_usr_sbin_zipl.0.crash already exists and unseen, skipping to avoid disk usage DoS
ERROR: apport (pid 1920) Sat Nov 19 01:22:19 2022: called for pid 1919, signal 11, core limit 0, dump mode 1
ERROR: apport (pid 1920) Sat Nov 19 01:22:19 2022: executable: /usr/sbin/zipl (command line "zipl -V")
ERROR: apport (pid 1920) Sat Nov 19 01:22:19 2022: apport: report /var/crash/_usr_sbin_zipl.0.crash already exists and unseen, skipping to avoid disk usage DoS
ubuntu@a257ubtu20seon04:/var/log$