Hi Robert,
you may upload them to IBM box, I have an account there and may download them
to the Canonical network - that's how I also do it with my IBM project mgr as
well in case of dumps or other larger files.
Thanks for sharing the additional information so far.
But I'm still wondering about the libc version.
The libc version in Bionic is 2.27, but I see 2.23 in the above strace which is
the one from Xenial.
rmadison --arch=s390x libc6 | egrep 'xenial|bionic'
libc6 | 2.23-0ubuntu3 | xenial | s390x
libc6 | 2.23-0ubuntu10 | xenial-security | s390x
libc6 | 2.23-0ubuntu11 | xenial-updates | s390x
libc6 | 2.27-3ubuntu1 | bionic | s390x
On your system you should see the following output, pointing to 2.27:
$ apt-cache policy libc6
libc6:
Installed: 2.27-3ubuntu1
Candidate: 2.27-3ubuntu1
Version table:
*** 2.27-3ubuntu1 500
500 http://us.ports.ubuntu.com/ubuntu-ports bionic/main s390x Packages
100 /var/lib/dpkg/status
Please can you double check with 'apt-cache policy libc6'?
It's important to have the correct libc6 and in case it's a 2.23 where it's
coming from:
sudo find / -iname "libc-2.*.so"
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https://bugs.launchpad.net/bugs/1831899
Title:
Kernel Oops 3b in libc-2.23 unable to handle pointer dereference in
kernel virtual address space
Status in Ubuntu on IBM z Systems:
Incomplete
Status in linux package in Ubuntu:
New
Bug description:
== Comment: #0 - Robert J. Brenneman <[email protected]> - 2019-05-30
11:16:45 ==
---Problem Description---
Kernel Oops 3b in libc-2.23 unable to handle pointer dereference in virtual
kernel address space
Contact Information = [email protected]
---uname output---
Linux ECOS0018 4.15.0-50-generic #54-Ubuntu SMP Tue May 7 05:57:08 UTC 2019
s390x s390x s390x GNU/Linux
Machine Type = z13 2964 NE1
---System Hang---
z/VM took a VMDUMP and reIPLed
---Debugger---
A debugger is not configured
---Steps to Reproduce---
boot system, start jenkins, let it run a couple days
Stack trace output:
05/29/19 13:24:06 Call Trace:
05/29/19 13:24:06 (?<000000000012b97a>? __tlb_remove_table+0x6a/0xd0)
05/29/19 13:24:06 ?<000000000012ba34>? tlb_remove_table_rcu+0x54/0x70
05/29/19 13:24:06 ?<00000000001f43b4>? rcu_process_callbacks+0x1d4/0x570
05/29/19 13:24:06 ?<00000000008e92d4>? __do_softirq+0x124/0x358
05/29/19 13:24:06 ?<0000000000179d52>? irq_exit+0xba/0xd0
05/29/19 13:24:06 ?<000000000010c412>? do_IRQ+0x8a/0xb8
05/29/19 13:24:06 ?<00000000008e87f0>? ext_int_handler+0x134/0x138
05/29/19 13:24:06 ?<0000000000102cee>? enabled_wait+0x4e/0xe0
05/29/19 13:24:06 (?<0000000000001201>? 0x1201)
05/29/19 13:24:06 ?<000000000010303a>? arch_cpu_idle+0x32/0x48
05/29/19 13:24:06 ?<00000000001c5ae8>? do_idle+0xe8/0x1a8
Oops output:
05/29/19 13:24:06 User process fault: interruption code 003b ilc:3 in
libc-2.23.so?3ffaca00000+185000?
05/29/19 13:24:06 Failing address: 0000000000000000 TEID: 0000000000000800
05/29/19 13:24:06 Fault in primary space mode while using user ASCE.
05/29/19 13:24:06 AS:0000000710b241c7 R3:0000000000000024
05/29/19 13:24:06 Unable to handle kernel pointer dereference in virtual
kernel address space
05/29/19 13:24:06 Failing address: 000003dbe0000000 TEID: 000003dbe0000403
05/29/19 13:24:06 Fault in home space mode while using kernel ASCE.
05/29/19 13:24:06 AS:0000000000ea8007 R3:0000000000000024
05/29/19 13:24:06 Oops: 003b ilc:3 ?#1? SMP
05/29/19 13:24:06 Modules linked in: veth xt_nat xt_tcpudp ipt_MASQUERADE
nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo
iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype
iptable_filter xt_con
05/29/19 13:24:06 ghash_s390 prng aes_s390 des_s390 des_generic sha512_s390
sha256_s390 dasd_fba_mod dasd_eckd_mod sha1_s390 sha_common dasd_mod
05/29/19 13:24:06 CPU: 7 PID: 0 Comm: swapper/7 Not tainted
4.15.0-50-generic #54-Ubuntu
05/29/19 13:24:06 Hardware name: IBM 2964 NE1 798 (z/VM 6.4.0)
05/29/19 13:24:06 Krnl PSW : 00000000dcb002be 0000000072762961
(__tlb_remove_table+0x56/0xd0)
05/29/19 13:24:06 R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1
PM:0 RI:0 EA:3
05/29/19 13:24:06 Krnl GPRS: ffffffffffffffba 000002b800000000
000002b800000003 0000000000eacac8
05/29/19 13:24:06 ffffffffffffffba 00000000000000b9
0700000000000000 000000000000000a
05/29/19 13:24:06 0404c00100000000 00000007d2fb5c38
00000007cf71fdf0 000003dbe0000000
05/29/19 13:24:06 000003dbe0000018 00000000008fe740
00000007cf71fd08 00000007cf71fcd8
05/29/19 13:24:06 Krnl Code: 000000000012b956: ec2c002a027f clij
%r2,2,12,12b9aa
05/29/19 13:24:06 000000000012b95c: ec26001d037e cij
%r2,3,6,12b996
05/29/19 13:24:06 #000000000012b962: 41c0b018 la
%r12,24(%r11)
05/29/19 13:24:06 >000000000012b966: e548b0080000 mvghi
8(%r11),0
05/29/19 13:24:06 000000000012b96c: a7390008 lghi
%r3,8
05/29/19 13:24:06 000000000012b970: b904002b lgr
%r2,%r11
05/29/19 13:24:06 000000000012b974: c0e5000e8f8a brasl
%r14,2fd888
05/29/19 13:24:06 000000000012b97a: a718ffff lhi
%r1,-1
05/29/19 13:24:06 Call Trace:
05/29/19 13:24:06 (?<000000000012b97a>? __tlb_remove_table+0x6a/0xd0)
05/29/19 13:24:06 ?<000000000012ba34>? tlb_remove_table_rcu+0x54/0x70
05/29/19 13:24:06 ?<00000000001f43b4>? rcu_process_callbacks+0x1d4/0x570
05/29/19 13:24:06 ?<00000000008e92d4>? __do_softirq+0x124/0x358
05/29/19 13:24:06 ?<0000000000179d52>? irq_exit+0xba/0xd0
05/29/19 13:24:06 ?<000000000010c412>? do_IRQ+0x8a/0xb8
05/29/19 13:24:06 ?<00000000008e87f0>? ext_int_handler+0x134/0x138
05/29/19 13:24:06 ?<0000000000102cee>? enabled_wait+0x4e/0xe0
05/29/19 13:24:06 (?<0000000000001201>? 0x1201)
05/29/19 13:24:06 ?<000000000010303a>? arch_cpu_idle+0x32/0x48
05/29/19 13:24:06 ?<00000000001c5ae8>? do_idle+0xe8/0x1a8
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 01.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 04.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 05.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 00.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 06.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 02.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 03.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 virtual machine is placed in CP mode due to a SIGP stop
from CPU 07.
05/29/19 13:24:06 ?<00000000001c5d86>? cpu_startup_entry+0x3e/0x48
05/29/19 13:24:06 ?<0000000000117240>? smp_start_secondary+0x120/0x140
05/29/19 13:24:06 ?<00000000008e8c46>? restart_int_handler+0x62/0x78
05/29/19 13:24:06 ?<0000000000000000>? (null)
05/29/19 13:24:06 Last Breaking-Event-Address:
05/29/19 13:24:06 ?<000000000012ba2e>? tlb_remove_table_rcu+0x4e/0x70
05/29/19 13:24:06
05/29/19 13:24:06 Kernel panic - not syncing: Fatal exception in interrupt
System Dump Location:
I will attach dumps here
*Additional Instructions for [email protected]:
-Attach sysctl -a output output to the bug.
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