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

[Dmitry Safonov]

And check your mail agent also, please - I didn't get the email
as my email address is warped. Only have spotted it in ml.

2017-06-29 18:49 GMT+03:00 Adrian Reber <adrian at lisas.de>:
> On Thu, Jun 29, 2017 at 02:00:39PM +0300, Cyrill Gorcunov wrote:
>> On Thu, Jun 29, 2017 at 12:27:21PM +0200, Adrian Reber wrote:
>> >
>> > Trying the master branch this fix seems to work on my test system, but
>> > it still fails using the criu-dev branch. I see that these patches exist
>> > on the criu-dev branch but zdtm fails with:
>> >
>> > ------------------------ grep Error ------------------------
>> > task_args->nr_threads: 1
>> > task_args->clone_restore_fn: 0x11200
>> > task_args->thread_args: 0x22600
>> > (00.006597)pie: 24: Switched to the restorer 24
>> > (00.006598)pie: 24: Error (criu/pie/parasite-vdso.c:49): vdso: BUG at criu/pi>
>> > (00.006598)pie: 24: e/parasite-vdso.c:49
>> > (00.006598)pie: 24: e/parasite-vdso.c:49
>> > (00.009079) Error (criu/cr-restore.c:1472): 24 killed by signal 11: Segmentation fault
>> > (00.009094) Error (criu/cr-restore.c:2378): Restoring FAILED.
>> > ------------------------ ERROR OVER ------------------------
>> >
>> > Any ideas what I might be doing wrong?
>>
>> 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?
>
>                 Adrian
> _______________________________________________
> CRIU mailing list
> CRIU at openvz.org
> https://lists.openvz.org/mailman/listinfo/criu



-- 
             Dmitry