On Tue, Mar 14, 2017 at 01:16:23AM -0400, Mike Frysinger wrote: > On 14 Mar 2017 00:57, Mike Frysinger wrote: > > so there's a disagreement in the overall system somewhere. > > i'd assume either the kernel's implementation of access_ok, > > or gcc's handling of the inline assembly. > > > > once i have access to a local system and reduce a bit more, > > i'll file some upstream bugs. > > hmm, looks like it's this old bug: > https://gcc.gnu.org/PR63359
Thanks a lot, that explains it. > i have a fix locally to the kernel, but i need to test it first. Looks like tests/sched_xetattr.c needs a workaround for this kernel bug, too. -- ldv
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