[Bug 1773973] [NEW] Ubuntu 18.04 [ Garrison P8 ]: Machine crashes with oops while booting with 4.15.0-22-generic kernel.

Tue May 29 11:49:31 UTC 2018

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---Problem Description---

Ubuntu 18.04 [ Garrison P8 ]: Machine crashes with oops while booting
with 4.15.0-22-generic kernel.

---Environment--
Kernel Build:   4.15.0-22-generic
System Name :  ltc-garri1
Model/Type  :  P8
Platform    :  BML

---Uname output---

Unable to boot.

---Steps to reproduce--

1. Install Ubuntu 18.04 on Garison BML from http://ports.ubuntu.com
/ubuntu-ports/dists/bionic/main/installer-ppc64el/current/images/netboot
/ubuntu-installer/ppc64el/ and try to boot.

---Logs----

Attaching console lob.

[    4.578205] Bad kernel stack pointer 7ffffb0dd870 at c00000000000b9ec
[    4.578244] Oops: Bad kernel stack pointer, sig: 6 [#11]
[    4.578271] LE SMP NR_CPUS=2048 NUMA PowerNV
[    4.578301] Modules linked in:
[    4.578324] CPU: 27 PID: 1225 Comm: modprobe Tainted: G      D          4.15.0-22-generic #24-Ubuntu
[    4.578371] NIP:  c00000000000b9ec LR: 0000000000000000 CTR: 0000000000000000
[    4.578413] REGS: c00000003febbd40 TRAP: 0300   Tainted: G      D           (4.15.0-22-generic)
[    4.578460] MSR:  9000000000001031 <SF,HV,ME,IR,DR,LE>  CR: 00000000  XER: 00000000
[    4.578504] CFAR: c00000000000b934 DAR: 000000000002b200 DSISR: 40000000 SOFTE: -4611686018403131680 
[    4.578504] GPR00: 0000000000000000 00007ffffb0dd870 0000000000000000 0000000000000000 
[    4.578504] GPR04: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.578504] GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.578504] GPR12: 000075dcd8781700 000000000002b200 0000000000000000 0000000000000000 
[    4.578504] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.578504] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.578504] GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.578504] GPR28: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    4.615667] NIP [c00000000000b9ec] fast_exception_return+0x9c/0x184
[    4.616210] LR [0000000000000000]           (null)
[    4.616237] Call Trace:
[    4.616768] Instruction dump:
[    4.616789] e84101a0 7c4ff120 e8410170 7c5a03a6 e8010070 e8410080 e8610088 e8810090 
[    4.617697] e8210078 7db243a6 7db142a6 7c0004ac <e9ad0000> 63ff0000 7db242a6 63ff0000 
[    4.618195] ---[ end trace a0d70ba94f583cca ]---
[    4.675899] usb 1-3.3: new high-speed USB device number 5 using xhci_hcd
[    4.782923] 
[    4.783061] Key type encrypted registered
[    4.783087] AppArmor: AppArmor sha1 policy hashing enabled
[    4.783117] ima: No TPM chip found, activating TPM-bypass! (rc=-19)
[    4.783181] evm: HMAC attrs: 0x1
[    4.806062] rtc-opal opal-rtc: setting system clock to 2018-05-29 07:49:29 UTC (1527580169)
[    4.806350] integrity: Unable to open file: /etc/keys/x509_ima.der (-2)
[    4.806353] integrity: Unable to open file: /etc/keys/x509_evm.der (-2)
[    4.807260] Freeing unused kernel memory: 4800K
[    4.807321] This architecture does not have kernel memory protection.

== Comment: #2 - SEETEENA THOUFEEK <sthoufee at in.ibm.com> - 2018-05-29 06:47:06 ==
Symptoms looks exactly like 
.
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1691978
.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1656908

** Affects: debian-installer (Ubuntu)
     Importance: Undecided
     Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
         Status: New

** Tags: architecture-ppc64le bugnameltc-168329 severity-critical targetmilestone-inin---
-- 
Ubuntu 18.04 [ Garrison P8 ]: Machine crashes with oops while booting with 4.15.0-22-generic kernel.
https://bugs.launchpad.net/bugs/1773973
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