linux-kernel - fallout of 16K stacks

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-next>] [day] [month] [year] [list]

Date:	Tue, 8 Jul 2014 00:30:01 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	torvalds@...ux-foundation.org
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: fallout of 16K stacks


Since the 16K stack change I noticed a number of problems with
my usual stress tests. They have a tendency to bomb out
because something cannot fork.

- AIM7 on a dual socket socket system now cannot reliably run 
>1000 parallel jobs.
- LTP stress + memhog stress in parallel to something else
usually doesn't survive the night.

Do we need to strengthen the memory allocator to try
harder for 16K?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/