From: Andi Kleen <ak@muc.de>
To: Wichert Akkerman <wichert@soil.nl>
Cc: linux-mm@kvack.org, riel@conectiva.com.br
Subject: Re: Running out of memory in 1 easy step
Date: Thu, 14 Sep 2000 17:56:33 +0200 [thread overview]
Message-ID: <20000914175633.A7675@fred.muc.de> (raw)
In-Reply-To: <20000914145904.B18741@liacs.nl>; from wichert@soil.nl on Thu, Sep 14, 2000 at 03:00:20PM +0200
On Thu, Sep 14, 2000 at 03:00:20PM +0200, Wichert Akkerman wrote:
>
> I have a small test program that consistently can't allocate more
> memory using mmap after 458878 allocations, no matter how much memory
> I allocate per call (tried with 8, 80, 800 and 4000 bytes per call):
> mmap returns ENOMEM. The machine has plenty memory available (2Gb
> and no other processes are running except standard daemons) so there
> should be enough memory.
There is a hardwired limit of 1024 vmas/process. This is to avoid denial
of service attacks with attackers using up all memory with vmas.
-Andi
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next prev parent reply other threads:[~2000-09-14 15:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-14 12:59 Wichert Akkerman
2000-09-14 15:56 ` Andi Kleen [this message]
2000-09-14 16:08 ` Wichert Akkerman
2000-09-14 18:43 ` Andi Kleen
2000-09-14 19:20 ` Wichert Akkerman
2000-09-14 23:03 ` Mark Hahn
2000-09-15 13:22 Mark_H_Johnson
2000-09-15 16:35 ` Mark Hahn
2000-09-15 16:53 Mark_H_Johnson
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