Thread (33 messages) 33 messages, 5 authors, 2014-07-19

Re: [PATCH v3 4/7] selftests: add memfd_create() + sealing tests

From: David Herrmann <hidden>
Date: 2014-07-19 16:31:26
Also in: linux-fsdevel, linux-mm, lkml

Hi

On Wed, Jul 16, 2014 at 12:07 PM, Hugh Dickins [off-list ref] wrote:
On Fri, 13 Jun 2014, David Herrmann wrote:
quoted
Some basic tests to verify sealing on memfds works as expected and
guarantees the advertised semantics.

Signed-off-by: David Herrmann <redacted>
Thanks for whatever the fix was, I didn't hit any problem running
this version repeatedly, on 64-bit and on 32-bit.
glibc does pid-caching so getpid() can be skipped once called. fork()
and clone() have to update it, though. Therefore, you shouldn't mix
fork() and clone() in the same process. I replaced my fork() call with
a simple clone() and the bug was gone.

Thanks
David

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