2.1.95 Uninterruptible Sleep Process

F Harvell (fharvell@fts.net)
Thu, 16 Apr 1998 00:20:00 -0300

It appears that there is at least one more SMP lock problem. During
a gzip of an ~400MB file, the gzip process got stuck in the "D" state.
According to ps axuwl, it is stuck in "wait_on_pag". I assume that
this is really __wait_on_page in linux/mm/filemap.c. Is there any way
to get more/better information about one of these stuck processes?

$ ps axuwl | grep D
FLAGS UID PID PPID PRI NI SIZE RSS WCHAN STA TTY TIME COMMAND
140 0 360 1 0 0 1128 476 do_select S ? 0:18 nmbd -D
0 6225 3357 3356 0 0 1088 532 wait_on_pag D a0 4:14 gzip -9 hd.tar
0 500 5140 18028 8 0 844 364 pipe_read S qa 0:00 grep D 

-- 
Mr. F Harvell                          Phone:407 696-4340
FTS International, Systems Division    Phone:407 399-0342 (cell)
3498 Buffam Place                        Fax:407 696-4244
Casselberry, FL 32707                 mailto:fharvell@fts.net




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