This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1773162
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: bionic
--
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1773162
Title:
4.15.0-22-generic fails to boot on IBM S822LC (POWER8 (raw), altivec
supported)
Status in linux package in Ubuntu:
Incomplete
Bug description:
Upgrading from 16.04 to 18.04 on a IBM S822LC the system does not boot
with 4.15.0-22-generic and is in a reboot cycle.
```
Exiting petitboot. Type 'exit' to return.
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
[31775213631,3] OPAL: Trying a CPU re-init with flags: 0x1
[32097001879,3] OPAL: Trying a CPU re-init with flags: 0x2
[ 2.660186] Bad kernel stack pointer 7fffcd511100 at c00000000000b9ec
[ 2.660382] Oops: Bad kernel stack pointer, sig: 6 [#1]
[ 2.660422] LE SMP NR_CPUS=2048 NUMA PowerNV
[ 2.660462] Modules linked in:
[ 2.660494] CPU: 63 PID: 1201 Comm: modprobe Not tainted 4.15.0-22-generic
#24-Ubuntu
[ 2.660549] NIP: c00000000000b9ec LR: 0000000000000000 CTR:
0000000000000000
[ 2.660603] REGS: c00000003fd0bd40 TRAP: 0300 Not tainted
(4.15.0-22-generic)
[ 2.660657] MSR: 9000000000001031 <SF,HV,ME,IR,DR,LE> CR: 00000000 XER:
00000000
[ 2.660713] CFAR: c00000000000b934 DAR: 00000000000200f0 DSISR: 40000000
SOFTE: -4611686018408771536
[ 2.660713] GPR00: 0000000000000000 00007fffcd511100 0000000000000000
0000000000000000
[ 2.660713] GPR04: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.660713] GPR08: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.660713] GPR12: 000075501b231700 00000000000200f0 0000000000000000
0000000000000000
[ 2.660713] GPR16: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.660713] GPR20: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.660713] GPR24: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.660713] GPR28: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[ 2.661203] NIP [c00000000000b9ec] fast_exception_return+0x9c/0x184
[ 2.661249] LR [0000000000000000] (null)
[ 2.661285] Call Trace:
[ 2.661303] Instruction dump:
[ 2.661331] e84101a0 7c4ff120 e8410170 7c5a03a6 e8010070 e8410080 e8610088
e8810090
[ 2.661387] e8210078 7db243a6 7db142a6 7c0004ac <e9ad0000> 63ff0000
7db242a6 48000010
[ 2.661445] ---[ end trace b607b09fe6490607 ]---
[…]
```
Please find the full log attached. Selecting Linux 4.4.0-124-generic
works.
```
$ uname -a
Linux flughafenberlinbrandenburgwillybrandt 4.4.0-124-generic #148-Ubuntu SMP
Wed May 2 13:02:22 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux
$ dpkg -l linux-image-4.15.0-22-generic
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version
Architecture Description
+++-==================================================-==============================-==============================-=========================================================================================================
ii linux-image-4.15.0-22-generic 4.15.0-22.24
ppc64el Signed kernel image generic
$ more /etc/os-release
NAME="Ubuntu"
VERSION="18.04 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/";
SUPPORT_URL="https://help.ubuntu.com/";
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/";
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy";
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
```
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