Bug 1897330
| Summary: | BUG: Bad page state in process systemctl pfn:1367199 | ||
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| Product: | Red Hat Enterprise Linux 8 | Reporter: | Mark Simmons <msimmons> |
| Component: | kernel-rt | Assignee: | Juri Lelli <jlelli> |
| kernel-rt sub component: | Memory Management | QA Contact: | Mark Simmons <msimmons> |
| Status: | CLOSED CURRENTRELEASE | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | bhu, cye, dhildenb, mm-maint, mstowell, rt-maint, rt-qe, williams |
| Version: | 8.4 | ||
| Target Milestone: | rc | ||
| Target Release: | 8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-12-01 02:06:55 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: | |||
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Comment 1
Mark Simmons
2020-11-12 19:44:36 UTC
Memory hotunplug can severely affect the performance of a running system. drain_pages() will have to schedule work on all CPUs, to make sure the PCP is fully drained on that CPU. Soon, it will disable the PCP completely while offlining. Are we sure we want to even allow that for RT kernels? Are there known users? |