SUMMARY: Sparc 5 hangs (locks up)

From: delto elto (
Date: Thu Apr 30 1998 - 15:09:42 CDT

Some Sparc5 s running Solaris 2.4 gradually slow down and then lock up
when not used for some time (over the weeke-end) and I find the
/var/adm/message file filled with messages like this --
                      Unix: pseudo-device: vol0
                      Unix: vol0 is /pseudo/vol@0

Solution: (Provided by Dik Casper -many thanks to him !!!)

>Looks like you need to vold patch.
>The solaris FAQ says:
>5.36) Solaris 2.4 is getting slower over time/seems to have a kernel
> memory leak.
> There are two possible causes for this kernel memory leak.
> There's a bug in the volume management device driver that when
> unloaded leaks memory: fix with patch 101907-05 (sparc) or
> 101908-07 (x86). This bug especially affects systems *not*
> running vold, as it is triggered when the kernel decides to
> unload unused device drivers.
> The NFS client cache will cache too much. A simple workaround is
> add ``set nrnode = 1000'' to /etc/system and reboot. You may want
> to make this larger or smaller depending on how much memory you
> have. A good rule of thumb is about 20-30 rnodes per MB of
> memory.
> Another possible candidate is an overflow in /tmp or other
> swap based (tmpfs) filesystems. Check with df/du.
> --- end of excerpt from the FAQ
>Questions marked with a * or + have been changed or added since
>the FAQ was last posted
>The most recently posted version of the FAQ is available from

Get Your Private, Free Email at

This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:12:39 CDT