Solaris 10, strange df output !?

From: Pascal Grostabussiat (pascal@azoria.com)
Date: Mon Jul 31 2006 - 04:31:33 EDT


Hi,

I was wondering if anyone of you was experiencing the same thing and if
some of you could explain this to me !? I have a few Solaris 10 boxes,
and I realized this morning that on a Solaris 10U2 box I had a df output
looking as follows:

bash-3.00# df -ha
Filesystem size used avail capacity Mounted on
/dev/dsk/c1t0d0s0 7.7G 4.5G 3.1G 60% /
/devices 0K 0K 0K 0% /devices
ctfs 0K 0K 0K 0% /system/contract
proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
swap 1.2G 1016K 1.2G 1% /etc/svc/volatile
objfs 0K 0K 0K 0% /system/object
/dev/dsk/c1t0d0s6 3.8G 3.1G 697M 83% /usr
/platform/sun4v/lib/libc_psr/libc_psr_hwcap1.so.1
                       7.7G 4.5G 3.1G 60%
/platform/sun4v/lib/libc_psr.so.1
/platform/sun4v/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
                       7.7G 4.5G 3.1G 60%
/platform/sun4v/lib/sparcv9/libc_psr.so.1
fd 0K 0K 0K 0% /dev/fd
/dev/dsk/c1t0d0s3 12G 5.4G 6.0G 48% /var
...

What are those /platform/sun4v/lib/libc_psr.so.1 and
/platform/sun4v/lib/sparcv9/libc_psr.so.1 !?!? Why are those mounted ??
I checked on another Solaris 10U1 box, and there too I found a similar
output !? I googled and couldn't find much except a few other similar
outputs. I ran umount on the Solaris 10U2 box and everthing performed
correctly, and now those lines are not part of the df output anymore and
nothing particular seems to happen !? (so far)

Regards,
/Pascal
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