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[Bug tapsets/20734] "sleeping function called from invalid context" bogus kernel BUG on s390x
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Thu, 05 Oct 2017 18:13:08 +0000
- Subject: [Bug tapsets/20734] "sleeping function called from invalid context" bogus kernel BUG on s390x
- Auto-submitted: auto-generated
- References: <bug-20734-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=20734
David Smith <dsmith at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from David Smith <dsmith at redhat dot com> ---
This one is fixed now. As part of the bpf runtime changes,
_stp_strncpy_from_user() now calls _stp_deref_string_nofault(), which calls
__stp_get_user(). __stp_get_user() is really __get_user() on RHEL6 s390x. Since
__get_user() doesn't call might_fault(), we don't get this bogus BUG.
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