On Tue, Sep 13, 2016 at 7:32 AM, Andreas Schwab <sch...@suse.de> wrote: > On Sep 13 2016, Eugene Syromyatnikov > <evgsyr-re5jqeeqqe8avxtiumw...@public.gmane.org> wrote: > >> glibc before 2.23 (glibc-2.22-122-gbe48165? to be more precise) tried to >> access >> data pointed by third argument of msgctl call on 64-bit PowerPC which led to >> segmentataion fault (instead of EFAULT from kernel). > > Which is a perfectly valid thing to do, as passing an invalid pointer to > msgctl (the libc function) invokes undefined behaviour. If you want to > test the kernel behaviour you need to talk to the kernel directly. Well, http://man7.org/linux/man-pages/man2/msgctl.2.html documents this case as EFAULT (and I assume it documents glibc wrapper since it usually does so and kernel interface is architecture-dependent).
> Andreas. > > -- > Andreas Schwab, SUSE Labs, sch...@suse.de > GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 > "And now for something completely different." > > ------------------------------------------------------------------------------ > _______________________________________________ > Strace-devel mailing list > Strace-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/strace-devel -- Eugene "eSyr" Syromyatnikov mailto:evg...@gmail.com xmpp:eSyr@jabber.{ru|org} ------------------------------------------------------------------------------ _______________________________________________ Strace-devel mailing list Strace-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/strace-devel
