[parisc-linux] A400-6X always crashes after a while

[Duraid Madina]

Using the 2.4.18-pa26 kernel on my A400-6X, the machine doesn't want to 
stay alive for more than about a day. The console log shows this:

~~~
Kernel panic: sba_iommu.c: I/O MMU @ fffffffffed22000 is out of mapping 
resources

 <6>sym53c896-3-<15,0>: extraneous data discarded.
sym53c896-3-<15,0>: COMMAND FAILED (89 0) @0000000016c95800.
Kernel panic: sba_iommu.c: I/O MMU @ fffffffffed22000 is out of mapping 
resources

In interrupt handler - not syncing
~~~

    Does anyone know what might be causing this?

    tia,
    Duraid