On Tue, Jun 18, 2019 at 2:45 PM William Brown <[email protected]> wrote:

>
>
> > On 18 Jun 2019, at 14:38, Viktor Ashirov <[email protected]> wrote:
> >
> >
> >
> > On Tue, Jun 18, 2019 at 2:33 PM William Brown <[email protected]> wrote:
> >
> >
> > > On 18 Jun 2019, at 14:19, Viktor Ashirov <[email protected]> wrote:
> > >
> > >
> > >
> > > On Tue, Jun 18, 2019 at 2:10 PM William Brown <[email protected]> wrote:
> > >
> > > >
> > > > Memalign is pretty important - the short version is "we can not
> remove it".
> > > > I didn't say "remove", I said "review".
> > > >
> > > > There are some structures in the code that rely on this for
> performance to guarantee that they memory is aligned to a page boundary, or
> cache line boundary. In some cases it's required to allow the atomics to
> work in nunc-stans (well, lfds, but the value of that today is questionable
> when the rust version is possibly safer and faster).
> > > > Since you're the expert in this area, maybe you can leave a comment
> in the issue linked above with the justification for upstream to reconsider?
> > >
> > > You mean upstream LSAN/ASAN in this case, yes?
> > > Yes, this https://github.com/google/sanitizers/issues/723
> >
> > Reading the report, that is only about mprotect of alligned memory, not
> of memory that is just aligned. Perhaps our issue is different?
> >
> > Maybe. I only tried the workaround that worked for me. At least I got
> some sensible results, not just LeakSanitizer failure.
>
>
> Where did you find the work around? Maybe I'm blind, but I do not see it
> on this issue ....
>
https://github.com/google/sanitizers/issues/723#issuecomment-438265698
I rebuilt gcc with the patch I sent earlier.

>
> >
> > >
> > >
> > > —
> > > Sincerely,
> > >
> > > William Brown
> > >
> > > Senior Software Engineer, 389 Directory Server
> > > SUSE Labs
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> > >
> > >
> > > --
> > > Viktor
> > > _______________________________________________
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> >
> > —
> > Sincerely,
> >
> > William Brown
> >
> > Senior Software Engineer, 389 Directory Server
> > SUSE Labs
> > _______________________________________________
> > 389-devel mailing list -- [email protected]
> > To unsubscribe send an email to [email protected]
> > Fedora Code of Conduct:
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> >
> >
> > --
> > Viktor
> > _______________________________________________
> > 389-devel mailing list -- [email protected]
> > To unsubscribe send an email to [email protected]
> > Fedora Code of Conduct:
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>
> —
> Sincerely,
>
> William Brown
>
> Senior Software Engineer, 389 Directory Server
> SUSE Labs
> _______________________________________________
> 389-devel mailing list -- [email protected]
> To unsubscribe send an email to [email protected]
> Fedora Code of Conduct:
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> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives:
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>


-- 
Viktor
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