Bug 1671126
| Summary: | NMI watchdog ineffective due to mismerge | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Crystal Wood <crwood> |
| Component: | kernel-rt | Assignee: | Crystal Wood <crwood> |
| kernel-rt sub component: | Other | QA Contact: | Tiefu <tieli> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | bhu, crwood, lgoncalv, qzhao, williams |
| Version: | 7.7 | ||
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | 08.rt56.9kernel-rt-3.10.0-1066.el7 | Doc Type: | No Doc Update |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-08-06 12:36:27 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: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1655694 | ||
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Description
Crystal Wood
2019-01-30 19:51:13 UTC
[Tiefu Li 14 May 2019] Following the principal "does anything break" testing, I can't see any different behaviour between the problematic version and the fixed version. Please refer the below steps: 1. Ensure that testing environment contains the bug: [root@hp-dl380eg8-01 ~]# uname -r 3.10.0-976.rt56.930.el7.x86_64 2. Ensure that the feature is on: [root@hp-dl380eg8-01 ~]# cat /proc/sys/kernel/nmi_watchdog 1-> Means this is on. 3. Observe the interrupts: [root@hp-dl380eg8-01 ~]# grep NMI /proc/interrupts NMI: 9 6 6 6 6 7 7 7 9 7 7 7 174 6 6 6 6 6 6 7 8 6 6 6 Non-maskable interrupts Secondly,I installed the fix on my server again then test again Below are my step by step procedure: 1. Installation: [root@hp-dl380eg8-01 ~]# wget http://download.eng.pek2.redhat.com/brewroot/packages/kernel-rt/3.10.0/1010.rt56.968.el7/x86_64/kernel-rt-3.10.0-1010.rt56.968.el7.x86_64.rpm [root@hp-dl380eg8-01 ~]# rpm -ihv kernel-rt-3.10.0-1010.rt56.968.el7.x86_64.rpm [root@hp-dl380eg8-01 ~]# grubby --default-kernel /boot/vmlinuz-3.10.0-1010.rt56.968.el7.x86_64 [root@hp-dl380eg8-01 ~]# rhts-reboot Connection to hp-dl380eg8-01.rhts.eng.pek2.redhat.com closed by remote host. 2. After reboot the server: [root@hp-dl380eg8-01 ~]# uname -r 3.10.0-1010.rt56.968.el7.x86_64 [root@hp-dl380eg8-01 ~]# cat /proc/sys/kernel/nmi_watchdog 1 [root@hp-dl380eg8-01 ~]# grep NMI /proc/interrupts NMI: 10 7 7 7 7 8 8 8 10 8 8 8 209 7 7 7 7 7 7 8 9 7 7 7 Non-maskable interrupts 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/RHSA-2019:2043 |