[Bug tapsets/20734] "sleeping function called from invalid context" bogus kernel BUG on s390x

dsmith at redhat dot com sourceware-bugzilla@sourceware.org
Thu Oct 5 18:13:00 GMT 2017


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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