From owner-freebsd-hackers  Sun Dec 30 23:29: 0 2001
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Date: Sun, 30 Dec 2001 23:28:56 -0800 (PST)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <200112310728.fBV7SuQ19094@apollo.backplane.com>
To: "Anjali Kulkarni" <anjali@indranetworks.com>
Cc: <osa@freebsd.org.ru>, <freebsd-hackers@FreeBSD.ORG>
Subject: Re: Kernel Memory Limit
References: <006e01c1905f$25fd1380$0a00a8c0@indranet> <20011229164322.A73212@freebsd.org.ru> <002801c191c2$9c497fb0$0a00a8c0@indranet>
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:Hi,
:
:I have tried this too, it makes absoutely no difference at all. My mallocs
:fail after a certain no. of runs of my code(and there is no memory leak),
:and there was no difference by increasing MAXDSIZ/DFLDSIZ.
:
:Thanks,
:Anjali

    MAXDSIZ and DFLDSIZ are associated with USER malloc()s, not
    kernel malloc()s.

    If you are trying to use malloc() in kernel code there are some
    rather severe limits.  'vmstat -m' will give you a rundown on the
    statistics.

    KVM is only 1G, and a lot of is used-up.  You cannot allocate
    (directly map) hundreds of megabytes of kernel memory.

						-Matt


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