Comment 12 for bug 1681909

------- Comment From <email address hidden> 2018-02-26 13:57 EDT-------
I tried reproducing this issue in a Firestone system our team owns with Ubuntu 18.04 and I couldn't reproduce the issue.

root@ltc-fire1:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu Bionic Beaver (development branch)"

root@ltc-fire1:~# uname -r
4.15.0-10-generic

root@ltc-fire1:~# ethtool -i enP1p1s0f0 | grep "driver\|firmware\|bus-info"
driver: tg3
firmware-version: 5719-v1.38i
bus-info: 0001:01:00.0

root@ltc-fire1:~# lspci -vmmnn -s 0001:01:00.0
Slot: 0001:01:00.0
Class: Ethernet controller [0200]
Vendor: Broadcom Limited [14e4]
Device: NetXtreme BCM5719 Gigabit Ethernet PCIe [1657]
SVendor: IBM [1014]
SDevice: NetXtreme BCM5719 Gigabit Ethernet PCIe (FC 5260/5899 4-port 1 GbE Adapter for Power) [0420]
Rev: 01
NUMANode: 0

Here is a snippet of the kdump attempt to reproduce the issue:

[ 129.602468] kdump-tools[1599]: Starting kdump-tools: * sending makedumpfile -c -d 31 -F /proc/vmcore to root@9.40.194.212 : /var/crash/9.40.195.135-201802261141/dump-incomplete
[ 129.719688] kdump-tools[1599]: The kernel version is not supported.
[ 129.720035] kdump-tools[1599]: The makedumpfile operation may be incomplete.
Copying data : [100.0 %] \ eta: 0s
[ 144.173303] kdump-tools[1599]: The dumpfile is saved to STDOUT.
[ 144.173531] kdump-tools[1599]: makedumpfile Completed.
[ 144.184688] kdump-tools[1599]: 533781+259 records in
[ 144.184975] kdump-tools[1599]: 533918+1 records out
[ 144.185223] kdump-tools[1599]: 273366297 bytes (273 MB, 261 MiB) copied, 14.3426 s, 19.1 MB/s
[ 144.419378] kdump-tools[1599]: * kdump-tools: saved vmcore in root@9.40.194.212:/var/crash/9.40.195.135-201802261141
[ 144.439183] kdump-tools[1599]: * running makedumpfile --dump-dmesg /proc/vmcore /tmp/dmesg.201802261141
[ 144.445902] kdump-tools[1599]: The kernel version is not supported.
[ 144.446266] kdump-tools[1599]: The makedumpfile operation may be incomplete.
[ 144.446557] kdump-tools[1599]: The dmesg log is saved to /tmp/dmesg.201802261141.
[ 144.446844] kdump-tools[1599]: makedumpfile Completed.
[ 144.717033] kdump-tools[1599]: * kdump-tools: saved dmesg content in root@9.40.194.212:/var/crash/9.40.195.135-201802261141
[ 144.718981] kdump-tools[1599]: Mon, 26 Feb 2018 11:42:11 -0700
[ 144.825931] kdump-tools[1599]: Rebooting.
[ 144.950195] reboot: Restarting system

Both dmesg and dump file were transferred to the peer under /var/crash/

root@ltc-zz4-lp2:~# ls /var/crash/9.40.195.135-201802261141
dmesg.201802261141 dump.201802261141

Pavithra, if you still have the system, could you attempt to reproduce this issue in your environment?

------- Comment From <email address hidden> 2018-02-28 01:46 EDT-------
Issue is not observed on same machine with 17.10 and 18.04 on same machine.

we can close the bug.

18.04
========

Starting Kernel crash dump capture service...
[ 29.664816] kdump-tools[1255]: Starting kdump-tools: * sending makedumpfile -c -d 31 -F /proc/vmcore to root@9.40.192.198 : /var/crash/9.47.70.29-201802280145/dump-incomplete
[ 29.732510] kdump-tools[1255]: The kernel version is not supported.
[ 29.732618] kdump-tools[1255]: The makedumpfile operation may be incomplete.
Copying data : [100.0 %] / eta: 0s
[ 41.966840] kdump-tools[1255]: The dumpfile is saved to STDOUT.
[ 41.966939] kdump-tools[1255]: makedumpfile Completed.
[ 42.112371] kdump-tools[1255]: 247581+447 records in
[ 42.112456] kdump-tools[1255]: 247802+1 records out
[ 42.112557] kdump-tools[1255]: 126874775 bytes (127 MB) copied, 11.3072 s, 11.2 MB/s
[ 43.275938] kdump-tools[1255]: * kdump-tools: saved vmcore in root@9.40.192.198:/var/crash/9.47.70.29-201802280145
[ 43.295066] kdump-tools[1255]: * running makedumpfile --dump-dmesg /proc/vmcore /tmp/dmesg.201802280145
[ 43.302493] kdump-tools[1255]: The kernel version is not supported.
[ 43.302611] kdump-tools[1255]: The makedumpfile operation may be incomplete.
[ 43.302694] kdump-tools[1255]: The dmesg log is saved to /tmp/dmesg.201802280145.
[ 43.302804] kdump-tools[1255]: makedumpfile Completed.
[ 44.711325] kdump-tools[1255]: * kdump-tools: saved dmesg content in root@9.40.192.198:/var/crash/9.47.70.29-201802280145
[ 44.713050] kdump-tools[1255]: Wed, 28 Feb 2018 01:45:29 -0500
[ 44.840303] kdump-tools[1255]: Rebooting.

17.10
======

[root@lep8a crash]# ls
9.47.70.29-201802280052
[root@lep8a crash]# cd 9.47.70.29-201802280052
[root@lep8a 9.47.70.29-201802280052]# ls
dmesg.201802280052 dump.201802280052
[root@lep8a 9.47.70.29-201802280052]# tail dmesg.201802280052
[ 1133.042160] Instruction dump:
[ 1133.042192] 4bfff9f1 4bfffe50 3c4c00e6 384228e0 7c0802a6 60000000 39200001 3d42001d
[ 1133.042410] 394adb30 912a0000 7c0004ac 39400000 <992a0000> 4e800020 3c4c00e6 384228b0
[ 1133.042625] ---[ end trace 0b7dd69083307793 ]---
[ 1133.104189]
[ 1133.104349] Sending IPI to other CPUs
[ 1133.104854] IPI complete
[ 1133.106269] kexec: waiting for cpu 0 (physical 8) to enter OPAL
[ 1133.109422] kexec: waiting for cpu 18 (physical 26) to enter OPAL
[ 1134.705583] kexec: Starting switchover sequence.

Thanks,
Pavithra