From: "wcohen at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug bpf/24639] "next" statement not recognized by stap bpf backend
Date: Fri, 07 Jun 2019 13:49:00 -0000 [thread overview]
Message-ID: <bug-24639-6586-SwL9hfYSae@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-24639-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=24639
--- Comment #6 from William Cohen <wcohen at redhat dot com> ---
Due to the crashes with bpf on f30 fedora 5.1.x kernels. This was on a rawhide
machine:
$ uname -a
Linux localhost.localdomain 5.2.0-0.rc3.git0.1.fc31.x86_64 #1 SMP Mon Jun 3
13:27:29 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
However, got same failure on f29:
$ uname -a
Linux fedora29 5.0.19-200.fc29.x86_64 #1 SMP Tue May 28 13:56:29 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
$ sudo ../install/bin/stap --bpf next.stp
BEGIN
vfs_read
value 2
status 0
end
value 2
status 2
END FAIL
Maybe there is some change in the kernel that is allowing for incoherent values
between kernel and user space.
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next prev parent reply other threads:[~2019-06-07 13:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-05 15:29 [Bug bpf/24639] New: " wcohen at redhat dot com
2019-06-05 20:34 ` [Bug bpf/24639] " me at serhei dot io
2019-06-06 21:13 ` wcohen at redhat dot com
2019-06-06 21:30 ` wcohen at redhat dot com
2019-06-06 21:30 ` wcohen at redhat dot com
2019-06-06 21:37 ` me at serhei dot io
2019-06-07 13:49 ` wcohen at redhat dot com [this message]
2019-06-10 17:11 ` me at serhei dot io
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