To quote Oracle from their Metalinks site:

<b>
Yes, this is bug 1307247 which will be fixed in Oracle9i and Oracle 8.1.7.1 These versions/patchsets are not yet available.
The ETA for 8.1.7.1 is the end of February 2001. You would of course, have to upgrade to 8.1.7 before applying this patchset.
</b>

...and an additional quote:

<b>
This bug can cause a system hang. It did on one of ours instances twice. Oracle has a patch for this bug for 8.1.6.3
</b>

I had to use the 8.1.6.3 patch to fix a totally different ORA-600 bug myself. I think ORA-600 is Oracle speak for "We'll fix it later."