Bug 1506937
| Summary: | Save vmcore failure on 4.14.* kernel: vtop4_x86_64: Can't get the symbol of init_level4_pgt. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Qiao Zhao <qzhao> |
| Component: | kexec-tools | Assignee: | Baoquan He <bhe> |
| Status: | CLOSED ERRATA | QA Contact: | Qiao Zhao <qzhao> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.5-Alt | CC: | joseph.skup, kdump-team-bugs, piliu, ruyang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kexec-tools-2.0.15-3.el7 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-04-10 14:12:27 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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: