[comp.bugs.4bsd] Problems with Mt. xinu 4.3 for 780

rminnich@udel.EDU (Ron Minnich) (10/26/87)

We are running the mt. xinu 4.3 release for Vax on our 780s. 
We have occasional problems with panics in the 
kernel. They are usually in two places. 
1) in mfree, called from soremque, we occasionally get 
   segmentation faults.
2) when a lot of activity begins on the deuna, e.g. rdump, 
   we get out of mbufs panics and sometimes segmentations. 

   Has anyone experienced similar problems? Seems like something
is walking all over mbuf pointers, maybe in the network or
unix domain socket code. 

Some other problems:
   We get panics about once every 18 hours. When we tried to 
bring this kernel up on a different 780 it would panic as soon
as anybody touched /dev/printer, in so_close. It seems as though 
an old 4.2 bug with unix-domain sockets has come back to 4.3
   We have been running the enetfilter device. The mt. xinu release
of May 6, 1987 has broken this somehow. This release included 
/sys/specfs code for the first time. We can open the device, 
but not close it or do ioctl's on it. Seems that the system
is losing track of the vnode's type somehow.
   Any help will be greatly appreciated. 

-- 
ron (rminnich@udel.edu)