On Tue, Jun 18, 2019 at 2:45 PM William Brown <wbrown@xxxxxxx> wrote:
> On 18 Jun 2019, at 14:38, Viktor Ashirov <vashirov@xxxxxxxxxx> wrote:
>
>
>
> On Tue, Jun 18, 2019 at 2:33 PM William Brown <wbrown@xxxxxxx> wrote:
>
>
> > On 18 Jun 2019, at 14:19, Viktor Ashirov <vashirov@xxxxxxxxxx> wrote:
> >
> >
> >
> > On Tue, Jun 18, 2019 at 2:10 PM William Brown <wbrown@xxxxxxx> 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 ....
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 -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx
> To unsubscribe send an email to 389-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
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>
>
> --
> Viktor
> _______________________________________________
> 389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx
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> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
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—
Sincerely,
William Brown
Senior Software Engineer, 389 Directory Server
SUSE Labs
_______________________________________________
389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx
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Viktor
_______________________________________________ 389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to 389-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/389-devel@xxxxxxxxxxxxxxxxxxxxxxx
