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[Bug tapsets/13670] New: on 3.3 kernels, 'mnt_parent' has been moved from 'struct vfsmount'
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Tue, 07 Feb 2012 16:49:28 +0000
- Subject: [Bug tapsets/13670] New: on 3.3 kernels, 'mnt_parent' has been moved from 'struct vfsmount'
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=13670
Bug #: 13670
Summary: on 3.3 kernels, 'mnt_parent' has been moved from
'struct vfsmount'
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: tapsets
AssignedTo: systemtap@sourceware.org
ReportedBy: dsmith@redhat.com
Classification: Unclassified
On rawhide (3.3.0-0.rc2.git0.2.fc17.x86_64), the buildok/dentry-embedded.stp
test fails:
====
# stap -vp4 ../src/testsuite/buildok/dentry-embedded.stp
Pass 1: parsed user script and 81 library script(s) using
200684virt/22792res/2812shr kb, in 130usr/10sys/152real ms.
semantic error: unable to find member 'mnt_parent' for struct vfsmount
(alternatives: mnt_root mnt_sb mnt_flags): operator '->' at
/usr/local/share/systemtap/tapset/dentry.stp:120:55
source: if (@cast(vfsmnt,
"vfsmount")->mnt_parent == vfsmnt)
^
semantic error: unable to find member 'mnt_mountpoint' for struct vfsmount
(alternatives: mnt_root mnt_sb mnt_flags): operator '->' at :123:60
source: dentry = @cast(vfsmnt,
"vfsmount")->mnt_mountpoint;
^
semantic error: unable to find member 'mnt_parent' for struct vfsmount
(alternatives: mnt_root mnt_sb mnt_flags): operator '->' at :124:60
source: vfsmnt = @cast(vfsmnt,
"vfsmount")->mnt_parent;
^
Pass 2: analyzed script: 1 probe(s), 26 function(s), 1 embed(s), 0 global(s)
using 424700virt/110064res/3784shr kb, in 2110usr/810sys/3204real ms.
Pass 2: analysis failed. Try again with another '--vp 01' option.
====
This is because of the following kernel commit:
====
commit 3376f34fff5be9954fd9a9c4fd68f4a0a36d480e
Author: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu Nov 24 22:05:19 2011 -0500
vfs: mnt_parent moved to struct mount
the second victim...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
====
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