kern/149323: [libc] Applications with large memory footprint failing with mmap(2) - memory allocation errors

Robert Blayzor rblayzor at inoc.net
Sat Aug 7 17:00:19 UTC 2010


The following reply was made to PR kern/149323; it has been noted by GNATS.

From: Robert Blayzor <rblayzor at inoc.net>
To: bug-followup at FreeBSD.org,
 rblayzor at inoc.net
Cc:  
Subject: Re: kern/149323: [libc] Applications with large memory footprint failing with mmap(2) - memory allocation errors
Date: Sat, 7 Aug 2010 12:37:27 -0400

 Confirmed...
 
 After removing:
 
 kern.maxdsiz=3D"2048M"
 
 
 =46rom our /boot/loader.conf
 
 
 Our system has been functioning fine since.  Our dcc server has been in =
 service for some time, since FreeBSD 4.x and has been upgraded to 6.x =
 and 7.x previously.  It was not until we upgraded to 8.x (8.1 as =
 noticed) where we saw this problem.
 
 I am unaware if kern.maxdsiz is needed now, but I believe it was needed =
 at one time under 4.x as the kernel was killing the process after it =
 grew over 512MB.  It does not seem to have that effect now...  The =
 default maxdsiz in 8.x is still 512MB under i386, so it looks like the =
 behavior was changed between 7.x and 8.x.
 
 --=20
 Robert Blayzor
 INOC, LLC
 rblayzor at inoc.net
 http://www.inoc.net/~rblayzor/
 
 
 
 


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