------- Comment From rjbr...@us.ibm.com 2019-06-07 09:22 EDT------- added you specifically as a reader frank - try now ?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 Status in linux source package in Bionic: New Bug description: == Comment: #0 - Robert J. Brenneman <rjbr...@us.ibm.com> - 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 = rjbr...@us.ibm.com ---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 rjbr...@us.ibm.com: -Attach sysctl -a output output to the bug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1831899/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
