Re: Using TMPFS for /tmp and /var/run?

On (04/04/2012 06:38), David Wolfskill wrote:
> On Wed, Apr 04, 2012 at 12:50:35PM +0300, Gleb Kurtsou wrote:
> > ...
> > tmpfs-32bit-size_max.patch.txt should fix the problem. I don't have i386
> > installations to test it myself.
> > 
> > Do you run PAE kernel? Could you try filling up /tmp at least to 10g.
> > ...
> 
> After updating source to r233868, applying the patch, then updating,
> here are the results of my testing so far (not using PAE).
> 
> Summary: as before, I believe that the patch didn't hurt anything, but
> it also doesn't restrict the usable size of /tmp to the specified size
> (from /etc/fstab):
> 

I've checked on i386 and patch worked as expected, but it required
previous patch. I've combined both patches. Could you try it.

Thanks,
Gleb.

> 
> Script started on Wed Apr  4 06:23:25 2012
> 
> g1-227(10.0-C)[1] _do
> uid=0(root) gid=0(wheel) groups=0(wheel),5(operator)
> /dev/ada0s2a on / (ufs, local, soft-updates)
> devfs on /dev (devfs, local, multilabel)
> tmpfs on /tmp (tmpfs, local)
> /dev/ada0s2d on /usr (ufs, local, soft-updates)
> /dev/ada0s4e on /var (ufs, local, soft-updates)
> /dev/ada0s4g on /common (ufs, local, soft-updates)
> fdescfs on /dev/fd (fdescfs)
> FreeBSD g1-227.catwhisker.org 10.0-CURRENT FreeBSD 10.0-CURRENT #2 233868M: Wed Apr  4 06:02:25 PDT 2012     root_at_g1-227.catwhisker.org:/usr/obj/usr/src/sys/CANARY  i386
> Wed Apr  4 06:23:27 PDT 2012
> >>> Removing old libraries
> Please be sure no application still uses those libraries, else you
> can not start such an application. Consult UPDATING for more
> information regarding how to cope with the removal/revision bump
> of a specific library.
> >>> Old libraries removed
> Wed Apr  4 06:23:28 PDT 2012
> g1-227(10.0-C)[2] exit
> 
> Script done on Wed Apr  4 06:23:29 2012
> Script started on Wed Apr  4 06:23:35 2012
> 
> g1-227(10.0-C)[1] df -hi /tmp
> Filesystem    Size    Used   Avail Capacity iused ifree %iused  Mounted on
> tmpfs          23G     12k     23G     0%      17  2.1G    0%   /tmp
> g1-227(10.0-C)[2] grep tmpfs /etc/fstab
> # tmpfs                 /tmp            tmpfs   rw,size=2147483648      0       0
> tmpfs                   /tmp            tmpfs   rw,size=8g      0       0
> 
> g1-227(10.0-C)[3] ls -lhT /bkp/tmp/test 
> -rw-r--r--  1 david  wheel   8.0G Mar 25 10:42:49 2012 /bkp/tmp/test
> g1-227(10.0-C)[4] dd bs=1m if=!$ of=/tmp/test
> dd bs=1m if=/bkp/tmp/test of=/tmp/test
> 8192+0 records in
> 8192+0 records out
> 8589934592 bytes transferred in 186.178099 secs (46138266 bytes/sec)
> g1-227(10.0-C)[5] df -hi /tmp
> Filesystem    Size    Used   Avail Capacity iused ifree %iused  Mounted on
> tmpfs          23G    8.0G     15G    35%      18  2.1G    0%   /tmp
> g1-227(10.0-C)[6] dd bs=1m if=/bkp/tmp/test of=/tmp/test1
> 8192+0 records in
> 8192+0 records out
> 8589934592 bytes transferred in 220.254916 secs (38999968 bytes/sec)
> g1-227(10.0-C)[7] df -hi /tmp
> Filesystem    Size    Used   Avail Capacity iused ifree %iused  Mounted on
> tmpfs          23G     16G    7.0G    70%      19  2.1G    0%   /tmp
> g1-227(10.0-C)[8] exit
> 
> Script done on Wed Apr  4 06:33:12 2012
> g1-227(10.0-C)[5]        
> 
> 
> Peace,
> david
> -- 
> David H. Wolfskill				david_at_catwhisker.org
> Depriving a girl or boy of an opportunity for education is evil.
> 
> See http://www.catwhisker.org/~david/publickey.gpg for my public key.