linux-kernel - Re: [PATCH v3 00/35] Memory allocation profiling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAJuCfpEsWfZnpL1vUB2C=cxRi_WxhxyvgGhUg7WdAxLEqy6oSw@mail.gmail.com>
Date: Tue, 13 Feb 2024 13:58:39 -0800
From: Suren Baghdasaryan <surenb@...gle.com>
To: Michal Hocko <mhocko@...e.com>
Cc: akpm@...ux-foundation.org, kent.overstreet@...ux.dev, vbabka@...e.cz, 
	hannes@...xchg.org, roman.gushchin@...ux.dev, mgorman@...e.de, 
	dave@...olabs.net, willy@...radead.org, liam.howlett@...cle.com, 
	corbet@....net, void@...ifault.com, peterz@...radead.org, 
	juri.lelli@...hat.com, catalin.marinas@....com, will@...nel.org, 
	arnd@...db.de, tglx@...utronix.de, mingo@...hat.com, 
	dave.hansen@...ux.intel.com, x86@...nel.org, peterx@...hat.com, 
	david@...hat.com, axboe@...nel.dk, mcgrof@...nel.org, masahiroy@...nel.org, 
	nathan@...nel.org, dennis@...nel.org, tj@...nel.org, muchun.song@...ux.dev, 
	rppt@...nel.org, paulmck@...nel.org, pasha.tatashin@...een.com, 
	yosryahmed@...gle.com, yuzhao@...gle.com, dhowells@...hat.com, 
	hughd@...gle.com, andreyknvl@...il.com, keescook@...omium.org, 
	ndesaulniers@...gle.com, vvvvvv@...gle.com, gregkh@...uxfoundation.org, 
	ebiggers@...gle.com, ytcoode@...il.com, vincent.guittot@...aro.org, 
	dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com, 
	bristot@...hat.com, vschneid@...hat.com, cl@...ux.com, penberg@...nel.org, 
	iamjoonsoo.kim@....com, 42.hyeyoo@...il.com, glider@...gle.com, 
	elver@...gle.com, dvyukov@...gle.com, shakeelb@...gle.com, 
	songmuchun@...edance.com, jbaron@...mai.com, rientjes@...gle.com, 
	minchan@...gle.com, kaleshsingh@...gle.com, kernel-team@...roid.com, 
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, 
	iommu@...ts.linux.dev, linux-arch@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org, 
	linux-modules@...r.kernel.org, kasan-dev@...glegroups.com, 
	cgroups@...r.kernel.org
Subject: Re: [PATCH v3 00/35] Memory allocation profiling

On Tue, Feb 13, 2024 at 4:24 AM Michal Hocko <mhocko@...e.com> wrote:
>
> On Mon 12-02-24 13:38:46, Suren Baghdasaryan wrote:
> [...]
> > We're aiming to get this in the next merge window, for 6.9. The feedback
> > we've gotten has been that even out of tree this patchset has already
> > been useful, and there's a significant amount of other work gated on the
> > code tagging functionality included in this patchset [2].
>
> I suspect it will not come as a surprise that I really dislike the
> implementation proposed here. I will not repeat my arguments, I have
> done so on several occasions already.
>
> Anyway, I didn't go as far as to nak it even though I _strongly_ believe
> this debugging feature will add a maintenance overhead for a very long
> time. I can live with all the downsides of the proposed implementation
> _as long as_ there is a wider agreement from the MM community as this is
> where the maintenance cost will be payed. So far I have not seen (m)any
> acks by MM developers so aiming into the next merge window is more than
> little rushed.

We tried other previously proposed approaches and all have their
downsides without making maintenance much easier. Your position is
understandable and I think it's fair. Let's see if others see more
benefit than cost here.
Thanks,
Suren.

>
> >  81 files changed, 2126 insertions(+), 695 deletions(-)
> --
> Michal Hocko
> SUSE Labs