Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Description of problem:
Kdump kernel save vmcore failure on 4.14.* kernel. Here is some console log by test machine:
] Reached target Initrd Default Target.
Starting dracut pre-pivot and cleanup hook...
[
OK
] Started dracut pre-pivot and cleanup hook.
Starting Kdump Vmcore Save Service...
kdump: dump target is /dev/mapper/rhel_ibm--x3950x6--01-root
kdump: saving to /sysroot//var/crash/127.0.0.1-2017-10-26-23:52:33/
kdump: saving vmcore-dmesg.txt
kdump: saving vmcore-dmesg.txt complete
kdump: saving vmcore
sadump: does not have partition header
sadump: read dump device as unknown format
sadump: unknown format
LOAD (0)
phys_start : 1000000
phys_end : 2388000
virt_start : ffffffff81000000
virt_end : ffffffff82388000
... ...
Buffer size for the cyclic mode: 4194304
vtop4_x86_64: Can't get the symbol of init_level4_pgt.
readmem: Can't convert a virtual address(ffffffff81c10284) to physical address.
readmem: type_addr: 0, addr:ffffffff81c10284, size:390
check_release: Can't get the address of system_utsname.
makedumpfile Failed.
kdump: saving vmcore failed
[
FAILED
] Failed to start Kdump Vmcore Save Service.
See 'systemctl status kdump-capture.service' for details.
Version-Release number of selected component (if applicable):
kernel-4.14.0-0.rc6.1.el7a.x86_64
kexec-tools-2.0.15-1.el7.x86_64
dracut-033-502.el7.x86_64
How reproducible:
Steps to Reproduce:
1. Please set --message-level to 31 and also set rd.debug=3.
2.
3.
Actual results:
Expected results:
Additional info:
Comment 5Joseph Skupniewicz
2018-01-21 08:23:16 UTC
Confirmed in Debian as well.
Linux 4.14.0-1-rt-amd64 #1 SMP PREEMPT RT Debian 4.14.2-1 (2017-11-30)
kexec-tools 2.0.15-1 amd64
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-2018:0807
Description of problem: Kdump kernel save vmcore failure on 4.14.* kernel. Here is some console log by test machine: ] Reached target Initrd Default Target. Starting dracut pre-pivot and cleanup hook... [ OK ] Started dracut pre-pivot and cleanup hook. Starting Kdump Vmcore Save Service... kdump: dump target is /dev/mapper/rhel_ibm--x3950x6--01-root kdump: saving to /sysroot//var/crash/127.0.0.1-2017-10-26-23:52:33/ kdump: saving vmcore-dmesg.txt kdump: saving vmcore-dmesg.txt complete kdump: saving vmcore sadump: does not have partition header sadump: read dump device as unknown format sadump: unknown format LOAD (0) phys_start : 1000000 phys_end : 2388000 virt_start : ffffffff81000000 virt_end : ffffffff82388000 ... ... Buffer size for the cyclic mode: 4194304 vtop4_x86_64: Can't get the symbol of init_level4_pgt. readmem: Can't convert a virtual address(ffffffff81c10284) to physical address. readmem: type_addr: 0, addr:ffffffff81c10284, size:390 check_release: Can't get the address of system_utsname. makedumpfile Failed. kdump: saving vmcore failed [ FAILED ] Failed to start Kdump Vmcore Save Service. See 'systemctl status kdump-capture.service' for details. Version-Release number of selected component (if applicable): kernel-4.14.0-0.rc6.1.el7a.x86_64 kexec-tools-2.0.15-1.el7.x86_64 dracut-033-502.el7.x86_64 How reproducible: Steps to Reproduce: 1. Please set --message-level to 31 and also set rd.debug=3. 2. 3. Actual results: Expected results: Additional info: