[LTP] madvise07.c:72: FAIL: Did not receive SIGBUS
Jan Stancek
jstancek@redhat.com
Tue Feb 14 16:25:59 CET 2017
----- Original Message -----
> From: "Richard Palethorpe" <rpalethorpe@suse.com>
> To: "Jan Stancek" <jstancek@redhat.com>
> Cc: "Cyril Hrubis" <chrubis@suse.cz>, ltp@lists.linux.it
> Sent: Tuesday, 14 February, 2017 4:18:45 PM
> Subject: Re: [LTP] madvise07.c:72: FAIL: Did not receive SIGBUS
>
> Hi Jan,
>
> On Tue, 14 Feb 2017 09:06:14 -0500 (EST)
> "Jan Stancek" <jstancek@redhat.com> wrote:
>
> >
> > Or maybe MADV_HWPOISON is supposed to work only for faulted-in pages?
> > It works fine for me with change below:
> >
> > diff --git a/testcases/kernel/syscalls/madvise/madvise07.c
> > b/testcases/kernel/syscalls/madvise/madvise07.c
> > index 2f8c42e..f5fd4b7 100644
> > --- a/testcases/kernel/syscalls/madvise/madvise07.c
> > +++ b/testcases/kernel/syscalls/madvise/madvise07.c
> > @@ -44,13 +44,13 @@ static int maptypes[] = {
> >
> > static void run_child(int maptype)
> > {
> > - const size_t msize = 4096;
> > + const size_t msize = getpagesize();
> > void *mem = NULL;
> >
> > mem = SAFE_MMAP(NULL,
> > msize,
> > PROT_READ | PROT_WRITE,
> > - MAP_ANONYMOUS | maptype,
> > + MAP_ANONYMOUS | maptype | MAP_POPULATE,
> > -1,
> > 0);
> >
>
> My only concern is that this is not documented in the man pages, but
> considering we are testing a test interface, I'm not sure it matters.
I'll ask on linux-mm.
>
> Thank you,
> Richard.
>
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