Comment 2 for bug 2072972

Revision history for this message
Po-Hsu Lin (cypressyew) wrote : Re: ftrace:test.d--ftrace--func_traceonoff_triggers.tc in ubuntu_kselftests_ftrace triggers kernel NULL pointer dereference

On 5.4.0-182, it seems we don't have any test case change:
$ git log -1
commit ae6643c51e8eab08016ce89a7e0c1595d8572668 (HEAD -> Ubuntu-5.4.0-182.202, tag: Ubuntu-5.4.0-182.202)
Author: Stefan Bader <email address hidden>
Date: Fri Apr 26 13:36:15 2024 +0200

    UBUNTU: Ubuntu-5.4.0-182.202

    Signed-off-by: Stefan Bader <email address hidden>
$ git log tools/testing/selftests/ftrace
commit 025c9da92a6fd4d7118aef40da453da5f2f5d32c
Author: Francis Laniel <email address hidden>
Date: Fri Oct 20 13:42:50 2023 +0300

    selftests/ftrace: Add new test case which checks non unique symbol

    BugLink: https://bugs.launchpad.net/bugs/2049024

    [ Upstream commit 03b80ff8023adae6780e491f66e932df8165e3a0 ]

    If name_show() is non unique, this test will try to install a kprobe on this
    function which should fail returning EADDRNOTAVAIL.
    On kernel where name_show() is not unique, this test is skipped.

    Link: https://<email address hidden>/

    Cc: <email address hidden>
    Signed-off-by: Francis Laniel <email address hidden>
    Acked-by: Masami Hiramatsu (Google) <email address hidden>
    Signed-off-by: Masami Hiramatsu (Google) <email address hidden>
    Signed-off-by: Sasha Levin <email address hidden>
    Signed-off-by: Manuel Diewald <email address hidden>
    Signed-off-by: Roxana Nicolescu <email address hidden>
$ git tag --contains 025c9da92a6fd4d7118aef40da453da5f2f5d32c
Ubuntu-5.4.0-173.191
Ubuntu-5.4.0-174.192
Ubuntu-5.4.0-174.193
Ubuntu-5.4.0-175.193
Ubuntu-5.4.0-175.194
Ubuntu-5.4.0-175.195
Ubuntu-5.4.0-176.196
Ubuntu-5.4.0-177.197
Ubuntu-5.4.0-181.201
Ubuntu-5.4.0-182.202
Ubuntu-5.4.0-186.206
Ubuntu-5.4.0-187.207
Ubuntu-5.4.0-189.209
Ubuntu-5.4.0-190.210
Ubuntu-5.4.0-192.212

We will probably need to bisect the kernel between these two tags.