Bug 2165190
| Summary: | [aarch64] RHEL8 memstrack doesn't work in 1st kernel | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Coiby <coxu> |
| Component: | memstrack | Assignee: | ltao |
| Status: | CLOSED ERRATA | QA Contact: | Li Wang <liwan> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | low | ||
| Version: | 8.8 | CC: | jieli, prudo, ruyang, xiawu |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | memstrack-0.2.5-2.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-11-14 15:51:02 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: | |||
This is a much easier way to reproduce this issue,
[root@hpe-apache-cn99xx-08 ~]# memstrack --report module_summary,module_top --notui
Tracing memory allocations, Press ^C to interrupt ...
Error calling perf_event_open: Too many open files
Failed initializing perf events
Patch posted upstream: [1] [1]: https://github.com/ryncsn/memstrack/pull/16 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 (memstrack bug fix and enhancement update), 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-2023:7156 |
Description of problem: memstrack failed with the followings errors, $ journalctl -b0 memstrack-start[1909]: memstrack - will report kernel module memory usage summary and top allocation stack memstrack-start[1920]: Tracing memory allocations, Press ^C to interrupt ... memstrack-start[1920]: Error calling perf_event_open: Too many open files memstrack-start[1920]: Failed initializing perf events systemd[1]: Started Memstrack Anylazing Service. systemd[1]: memstrack.service: Main process exited, code=exited, status=24/n/a systemd[1]: memstrack.service: Failed with result 'exit-code'. systemd[1]: Starting dracut cmdline hook... Version-Release number of selected component (if applicable): memstrack-0.2.4-2.el8 RHEL-8.8.0-20230126.17 on hpe-apache-cn99xx-08.khw4.lab.eng.bos.redhat.com How reproducible: always Steps to Reproduce: 1. grubby --args=rd.memdebug=5 --update-kernel=DEFAULT 2. reboot Actual results: memstrack failed to report kernel module memory usage. Expected results: memstrack should report kernel module memory usage. Additional info: 1. This issue can be both observed on both the latest kernel 4.18.0-452.el8.aarch64 as of writing and 4.18.0-372.12.1.el8_6.aarch64 which was released about half a year ago 2. This bug can also be reproduced on aarch64 RHEL9 3. memstrack works well in kdump kernel 4. memstrack works fine in other architectures like x86 and s390