tmpfs -- where's the M to R?

tmpfs -- where's the M to R?

Post by Derek Wildsta » Tue, 28 Aug 2001 09:30:10

> I'm interested in tmpfs for several reasons, one of them is setting up
> a diskless terminal.  I found a few mentions of tmpfs in the FAQ and a
> brief mention in the Multi Disk Tuning HOWTO, but I couldn't find any
> docs on it.  Most of what I read said that there was no tmpfs
> implementation in Linux, but my config (kernel 2.4.8) says there is.
> Any pointers to documentation would be appreciated.

Look at the help for tmpfs in "make menuconfig", if you highlight it then
select "help" ... it explains how to mount it and what some of the options


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1. tmpfs: [ID 610955 kern.warning] WARNING: tmp_memalloc: tmpfs over memory limit

Is there some kind of memory limit setting in /etc/system or
something?  This is the error I'm getting when my /tmp gets over about
70% full.  I've just never heard of this before, could someone explain
please.  Below is my vfstab if it matters at all...

#device         device          mount           FS      fsck    mount
#to mount       to fsck         point           type    pass    at
boot options
#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr          ufs     1       yes  
fd      -       /dev/fd fd      -       no      -
/proc   -       /proc   proc    -       no      -
/dev/dsk/c0t0d0s1       -       -       swap    -       no      -
/dev/dsk/c0t0d0s0       /dev/rdsk/c0t0d0s0      /       ufs     1    
 no      -
/dev/dsk/c0t0d0s4       /dev/rdsk/c0t0d0s4      /usr    ufs     1    
 no      -
/dev/dsk/c0t0d0s3       /dev/rdsk/c0t0d0s3      /var    ufs     1    
 no      -
/dev/md/dsk/d0          /dev/md/rdsk/d0         /export/home    ufs  
 2       yes     logging
/dev/dsk/c0t0d0s5       /dev/rdsk/c0t0d0s5      /opt    ufs     2    
 yes     -
/dev/dsk/c1t15d0s7      /dev/rdsk/c1t15d0s7     /export/spool   ufs  
 2       yes     -
/dev/dsk/c1t2d0s7       /dev/rdsk/c1t2d0s7      /export ufs     2    
 yes     -
swap    -       /tmp    tmpfs   -       yes     -

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