Bug 1360131

Summary: kdump: dumping to ssh target fails when using a customized UserKnownHostsFile
Product: Red Hat Enterprise Linux 7 Reporter: Qiao Zhao <qzhao>
Component: dracutAssignee: Lukáš Nykrýn <lnykryn>
Status: CLOSED ERRATA QA Contact: Release Test Team <release-test-team>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.3CC: dracut-maint-list, jstodola, kzhang, ruyang
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: dracut-033-496.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-01 21:06:54 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On:    
Bug Blocks: 1394638, 1404314    

Description Qiao Zhao 2016-07-26 05:56:58 UTC
Description of problem:
Network special nic card(qlcnic) test failed.

[console]
[    0.000000] Ke32.x86_64 root=/dev/mapper/rhel_hp--dl580g7--01-root ro rd.lvm.lv=rhel_hp-dl580g7-01/root rd.lvm.lv=rhel_hp-dl580g7-01/swap console=ttyS1,115200n81 LANG=en_US.UTF-8 irqpoll nr_cpus=1 reset_devices cgroup_dimemory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug transparent_hugepage=never disable_cpu_apicid=0 elfcorehdr=867712K
...
[  OK  ] Started dracut pre-pivot and cleanup hook.
         Starting Kdump Vmcore Save Service...
kdump: saving to root@192.168.1.52:/mnt/testarea/ssh/hp-dl580g7-01.rhts.eng.pek2.redhat.com/192.168.1.10-2016-07-26-01:41:25
kdump: saving vmcore failed
[FAILED] Failed to start Kdump Vmcore Save Service.
See 'systemctl status kdump-capture.service' for details.
...
kdump:/# systemctl -l status kdump-capture.service
● kdump-capture.service - Kdump Vmcore Save Service
   Loaded: loaded (/usr/lib/systemd/system/kdump-capture.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2016-07-26 01:41:25 EDT; 4min 1s ago
  Process: 563 ExecStart=/bin/kdump.sh (code=exited, status=1/FAILURE)
 Main PID: 563 (code=exited, status=1/FAILURE)

Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: Starting Kdump Vmcore Save Service...
Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: kdump-capture.service: main process exited, code=exited, status=1/FAILURE
Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: Failed to start Kdump Vmcore Save Service.
Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: Unit kdump-capture.service entered failed state.
Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: Triggering OnFailure= dependencies of kdump-capture.service.
Jul 26 01:41:25 hp-dl580g7-01.rhts.eng.pek2.redhat.com systemd[1]: kdump-capture.service failed.
[/console]

# grep -v ^# /etc/kdump.conf
ssh root@192.168.1.52
sshkey /root/.ssh/id_rsa
core_collector makedumpfile -F -l --message-level 1 -d 31
path /mnt/testarea/ssh/hp-dl585g7-02.rhts.eng.pek2.redhat.com
default shell

We can't analyze what causes this error.

Version-Release number of selected component (if applicable):
dracut-033-449.el7
kexec-tools-2.0.7-47.el7

How reproducible:


Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info:

Comment 5 Dave Young 2017-04-04 03:56:37 UTC
This has been solved in a dracut commit below, thus move to dracut component..

commit 32f5af2f5e20ee982745262c444c50b20bfb4c01
Author: Tong Li <tonli@redhat.com>
Date:   Wed Nov 30 17:05:57 2016 +0800

    95ssh-client: attempt to copy UserKnownHostsFile to kdump's initramfs

Comment 9 errata-xmlrpc 2017-08-01 21:06:54 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2076