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action #101517

closed

[qe-core ] systemtap is failing because latest kenel-devel is installed and linked to and stap is using .config to actual kernel which does not exist

Added by dzedro about 3 years ago. Updated almost 3 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
Bugs in existing tests
Target version:
Start date:
2021-10-27
Due date:
% Done:

0%

Estimated time:
Difficulty:

Description

Observation

Either manually create the link or just do system update and reboot to be on latest kernel.

openQA test in scenario sle-15-SP2-Server-DVD-Incidents-x86_64-mau-extratests2@64bit fails in
systemtap

Test suite description

Testsuite maintained at https://gitlab.suse.de/qa-maintenance/qam-openqa-yml. Run console tests against aggregated test repo

Reproducible

Fails since (at least) Build :21389:libvirt (current job)

Expected result

Last good: :21403:hwdata (or more recent)

Further details

Always latest result in this scenario: latest

Actions #1

Updated by dzedro about 3 years ago

I tried to do update, reboot but then on kernel 5.3.18-24.86-default stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}' failed http://dzedro.suse.cz/tests/19771#step/systemtap/84

Pass 1: parsed user script and 476 library scripts using 158864virt/88112res/7168shr/81204data kb, in 200usr/30sys/242real ms.
semantic error: while resolving probe point: identifier 'kernel' at /usr/share/systemtap/tapset/linux/vfs.stp:976:18
        source: probe vfs.read = kernel.function("vfs_read")
                                 ^

semantic error: missing x86_64 kernel/module debuginfo [man warning::debuginfo] under '/lib/modules/5.3.18-24.86-default/build'

semantic error: resolution failed in alias expansion builder

semantic error: while resolving probe point: identifier 'vfs' at <input>:1:7
        source: probe vfs.read {printf("read performed\n"); exit()}
                      ^

semantic error: no match

Pass 2: analyzed script: 0 probes, 0 functions, 0 embeds, 0 globals using 160580virt/90620res/7872shr/82920data kb, in 20usr/110sys/159real ms.
Pass 2: analysis failed.  [man error::pass2]
Actions #2

Updated by VANASTASIADIS about 3 years ago

  • Assignee set to VANASTASIADIS
Actions #3

Updated by VANASTASIADIS about 3 years ago

  • Status changed from New to Feedback

Tests is fixed and passing all runs in the past days (https://openqa.suse.de/tests/7589356), will watch for a couple of days and close if no new failure occurs

Actions #4

Updated by dzedro about 3 years ago

I would not call it fixed, it can happen again when not latest kernel is booted. It can be rare.

Actions #5

Updated by VANASTASIADIS about 3 years ago

Correct. But depending on how rare it is, it might not be worth to check and reboot the latest kernel each time.

Actions #6

Updated by VANASTASIADIS about 3 years ago

  • Status changed from Feedback to In Progress

As agreed, an explicit message when failing due to version differences would be welcome, so I will implement that.

Actions #7

Updated by VANASTASIADIS about 3 years ago

  • Status changed from In Progress to Resolved
Actions #9

Updated by szarate almost 3 years ago

  • Target version set to QE-Core: Ready
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