dump(8) deadlock (ULE bug?)

Hi,

I have this filesystem:

Filesystem  1K-blocks    Used     Avail Capacity  Mounted on
/dev/da0s1g  16244334  992310  13952478     7%

and I'm trying to dump it like:

dump -0uf - /dev/da0s1g > news.dump

The problem is that dump(8) seems to run into a deadlock or race in Pass
IV [regular files], because then the dump procs all go into state "paused"
and don't do anything anymore.

 1080 root      20    0  2116K  1664K pause  0   0:04  0.00%  0.00% dump
 1082 root      20    0  2116K  1664K pause  3   0:04  0.00%  0.00% dump
 1081 root      20    0  2116K  1664K pause  2   0:04  0.00%  0.00% dump
 1079 root       4    0  2244K  1704K sbwait 3   0:03  0.00%  0.00% dump

If I run dump subsequently, the deadlock happens at different times, as I
get different output files until I have to cancel the dump:

-rw-r--r--   1 root  news   239790080 Mar  6 18:56 news.dump.1
-rw-r--r--   1 root  news    20848640 Mar  6 18:56 news.dump.2
-rw-r--r--   1 root  news   302807040 Mar  6 18:57 news.dump.3
-rw-r--r--   1 root  news   114903040 Mar  6 19:00 news.dump.4
-rw-r--r--   1 root  news   353925120 Mar  6 19:01 news.dump.5
-rw-r--r--   1 root  news    55582720 Mar  6 19:02 news.dump.6
-rw-r--r--   1 root  news   418723840 Mar  6 19:03 news.dump.7
-rw-r--r--   1 root  news    89896960 Mar  6 19:04 news.dump.8
-rw-r--r--   1 root  news   248770560 Mar  6 19:06 news.dump.9

Could this be a possible ULE bug?  This is a kernel from Mon Mar  1
16:19:21 CET 2004, on a dual P4 Xeon with Hyperthreading enabled.

regards,
le

-- 
Lukas Ertl                           http://mailbox.univie.ac.at/~le/
le_at_FreeBSD.org                       http://people.freebsd.org/~le/