ftrace test from ubuntu_kernel_selftests failed with Kprobe event user-memory access on B-hwe i386 / F-aws / F-fips

Bug #1878784 reported by Po-Hsu Lin
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ubuntu-kernel-tests
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Bug Description

Issue found on node fozzie with 5.3.0-53.47~18.04.1

The ftrace from ubuntu_kernel_selftests failed with:
# [39] Kprobe event user-memory access [FAIL]

And with bug 1866972

This failure cannot be found on amd64 (node rizzo) with the same kernel

Po-Hsu Lin (cypressyew)
tags: added: 5.3 bionic i386 sru-20200427 ubuntu-kernel-selftests
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

This issue can be found on F-aws amd64 as well.
5.4.0-1033.34

tags: added: sru-20201130
summary: ftrace test from ubuntu_kernel_selftests failed with Kprobe event user-
- memory access on B-hwe i386
+ memory access on B-hwe i386 / F-aws
tags: added: amd64 aws focal
Revision history for this message
Po-Hsu Lin (cypressyew) wrote : Re: ftrace test from ubuntu_kernel_selftests failed with Kprobe event user-memory access on B-hwe i386 / F-aws

Probably a dup of 1893024

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Note for bug 1893024 although it's for 5.7, comment #11 from Kelsey said this applies to 5.4 as well.

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Issue found on 5.4.0-1020.24 - fips

summary: ftrace test from ubuntu_kernel_selftests failed with Kprobe event user-
- memory access on B-hwe i386 / F-aws
+ memory access on B-hwe i386 / F-aws / F-fips
tags: added: sru-20210104
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Didn't see this on 5.4.0-1010.11 - gkeop

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