From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 128831 invoked by alias); 7 Jun 2019 13:49:13 -0000 Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org Received: (qmail 128784 invoked by uid 48); 7 Jun 2019 13:49:09 -0000 From: "wcohen at redhat dot com" 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 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: systemtap X-Bugzilla-Component: bpf X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: wcohen at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: systemtap at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2019-q2/txt/msg00077.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=3D24639 --- Comment #6 from William Cohen --- Due to the crashes with bpf on f30 fedora 5.1.x kernels. This was on a rawh= ide 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 va= lues between kernel and user space. --=20 You are receiving this mail because: You are the assignee for the bug.