Author: adrian
Date: Sat Mar 2 08:12:41 2013
New Revision: 247615
URL: http://svnweb.freebsd.org/changeset/base/247615
Log:
Disable the ctl driver in GENERIC.
It unfortunately steals a fair chunk of RAM at startup even if it's not
actively used, which prevents FreeBSD VMs of 128MB from successfully
booting and running.
Modified:
head/UPDATING
head/sys/amd64/conf/GENERIC
head/sys/i386/conf/GENERIC
Modified: head/UPDATING
==============================================================================
--- head/UPDATING Sat Mar 2 06:55:55 2013 (r247614)
+++ head/UPDATING Sat Mar 2 08:12:41 2013 (r247615)
@@ -26,6 +26,13 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10
disable the most expensive debugging functionality run
"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
+20130301:
+ The ctl device has been disabled in GENERIC for i386 and amd64.
+ This was done due to the extra memory being allocated at system
+ initialisation time by the ctl driver which was only used if
+ a CAM target device was created. This makes a FreeBSD system
+ unusable on 128MB or less of RAM.
+
20130208:
A new compression method (lz4) has been merged to -HEAD. Please
refer to zpool-features(7) for more information.
Modified: head/sys/amd64/conf/GENERIC
==============================================================================
--- head/sys/amd64/conf/GENERIC Sat Mar 2 06:55:55 2013 (r247614)
+++ head/sys/amd64/conf/GENERIC Sat Mar 2 08:12:41 2013 (r247615)
@@ -138,7 +138,7 @@ device sa # Sequential Access
(tape et
device cd # CD
device pass # Passthrough device (direct ATA/SCSI access)
device ses # Enclosure Services (SES and SAF-TE)
-device ctl # CAM Target Layer
+#device ctl # CAM Target Layer
# RAID controllers interfaced to the SCSI subsystem
device amr # AMI MegaRAID
Modified: head/sys/i386/conf/GENERIC
==============================================================================
--- head/sys/i386/conf/GENERIC Sat Mar 2 06:55:55 2013 (r247614)
+++ head/sys/i386/conf/GENERIC Sat Mar 2 08:12:41 2013 (r247615)
@@ -146,7 +146,7 @@ device sa # Sequential Access
(tape et
device cd # CD
device pass # Passthrough device (direct ATA/SCSI access)
device ses # Enclosure Services (SES and SAF-TE)
-device ctl # CAM Target Layer
+#device ctl # CAM Target Layer
# RAID controllers interfaced to the SCSI subsystem
device amr # AMI MegaRAID
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