From: "fche at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/14555] New: tolerate /proc/sys/kernel/kptr_restrict=2
Date: Fri, 07 Sep 2012 16:45:00 -0000 [thread overview]
Message-ID: <bug-14555-6586@http.sourceware.org/bugzilla/> (raw)
http://sourceware.org/bugzilla/show_bug.cgi?id=14555
Bug #: 14555
Summary: tolerate /proc/sys/kernel/kptr_restrict=2
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap@sourceware.org
ReportedBy: fche@redhat.com
Classification: Unclassified
It was reported that staprun's search for _stext is frustrated by
/proc/sys/kernel/kptr_restrict = 2, which leads to kernel kprobes to being
unrelocatable and thus un-emplaceable.
We should do better. staprun could detect & change that flag temporarily. The
runtime could attempt to use kallsyms_lookup to find _stext self-sufficiently.
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next reply other threads:[~2012-09-07 16:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-07 16:45 fche at redhat dot com [this message]
2012-09-10 7:20 ` [Bug runtime/14555] " dragos.tatulea at gmail dot com
2012-10-10 12:47 ` alexander.lochmann@tu-dortmund.de
2012-10-10 16:45 ` fche at redhat dot com
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