kern/63986: FreeBSD 5.2.1-RELEASE-p1 panics when removing large diretories

Kris Kennaway kris at obsecurity.org
Tue Mar 9 21:00:31 PST 2004


The following reply was made to PR kern/63986; it has been noted by GNATS.

From: Kris Kennaway <kris at obsecurity.org>
To: Gerhard Schmidt <estartu at ze.tum.de>
Cc: FreeBSD-gnats-submit at FreeBSD.org
Subject: Re: kern/63986: FreeBSD 5.2.1-RELEASE-p1 panics when removing large diretories
Date: Tue, 9 Mar 2004 20:45:46 -0800

 On Tue, Mar 09, 2004 at 02:48:56PM +0100, Gerhard Schmidt wrote:
 
 > real memory  = 4160684032 (3967 MB)
 > avail memory = 4044120064 (3856 MB)
 
 > When I try to delete large directory (the build dir of make release for example) freebsd panic with 
 > panic: kmem_malloc(4096) kmem_map to small: 275251200 total allocated
 
 The problem is that the default kernel auto-sizing parameters are
 sometimes too small for large memory machines.  You can fix the
 problem by tuning them yourself; see kern/53416 for an older PR with
 details.
 
 Kris


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