[CRIU] [PATCH v3 0/2] mem: Address dropped guard pages from procfs report

[Adrian Reber]

On Thu, Jun 29, 2017 at 08:31:20PM +0300, Dmitry Safonov wrote:
> 2017-06-29 19:48 GMT+03:00 Cyrill Gorcunov <gorcunov at gmail.com>:
> > On Thu, Jun 29, 2017 at 05:49:04PM +0200, Adrian Reber wrote:
> >> >
> >> > Hmm. Hard to say, maybe something with CONFIG_ symbols again?
> >> > Mind to try bisecting it?
> >>
> >> Bisecting does not really work as it does not work right now and if I
> >> remove the stack guard gap fix it also does not work. But I removed the
> >> following patchset (vdso rework):
> >> https://lists.openvz.org/pipermail/criu/2017-June/thread.html
> >>
> >> and I can run criu again on the RHEL kernel. The patch description talks
> >> about the vzkernel and
> >>
> >> """
> >>   I've tested the performance impact of the patches set on:
> >>   4.12.0-rc5+ kernel (needed arch_prctl() is available from v4.9 kernel)
> >>   With the current criu-dev af6399cc5 ("vma: Fix badly inherited FD
> >>   in filemap_open")
> >> """
> >>
> >> Does this mean that the RHEL kernel needs additional patches to work
> >> with criu-dev?
> >
> > Dima?
> 
> Adrian, could you run it with the patch
> "criu/pie/parasite-vdso: Handle also systems without VVAR"
> it's on ml currently, and see if that helps?

No, the error is still the same:

(00.006730)pie: 24: Switched to the restorer 24
(00.006732)pie: 24: Error (criu/pie/parasite-vdso.c:49): vdso: BUG at criu/pi>
(00.006732)pie: 24: e/parasite-vdso.c:49
(00.008847) Error (criu/cr-restore.c:1472): 24 killed by signal 11: Segmentation fault
(00.008864) Error (criu/cr-restore.c:2363): Restoring FAILED.

		Adrian

		Adrian

-- 
Adrian Reber <adrian at lisas.de>            http://lisas.de/~adrian/
Old programmers never die, they just hit account block limit.