Sorry I wrote about this problem back in summer,
but did not have time to investigate then.
Now I want to get it working.
I have just a local printer on the parallel port run via gs and
RH type /var/spool/lpd/lp/filter rather than ifhp.
Now I launch the job while printer is off.
Five processes are started
> ps -ef
daemon 26891 16442 0 23:48 ? 00:00:00 lpd (Server) 'lp'
daemon 26892 26891 0 23:48 ? 00:00:00 lpd (Worker - Print)
'lp'
daemon 26896 26892 0 23:48 ? 00:00:00 bash
/var/spool/lpd/lp/filter -A
daemon 26918 26896 0 23:48 ? 00:00:00 sh
/usr/lib/rhs/rhs-printfilters
daemon 26920 26918 11 23:48 ? 00:00:01 gs -q @stc600pl.upp
-sPAPERSIZE=
and the state of the queue is
> lpq
Printer: lp@polarbear '360x360'
Queue: 1 printable job
Server: pid 26735 active
Unspooler: pid 26736 active
Status: processing 'dfA733polarbear.homenet', size 1302, format 'f', IF
filter 'filter' at 22:56:04.510
Filter_status: lp is ready and printing
Rank Owner/ID Class Job Files Size
Time
active dima@polarbear+733 A 733 page.ps 1302
22:56:04
Now I want to remove the job from the queue while printer is off
> lprm 733
and I see that the first two (lpd) processes are killed, while the
rest are orphaned and
are hanging indefinetely (and will produce some garbage if printer is
switched on)
> ps -ef
daemon 26896 1 0 23:48 ? 00:00:00 bash
/var/spool/lpd/lp/filter -A
daemon 26918 26896 0 23:48 ? 00:00:00 sh
/usr/lib/rhs/rhs-printfilters
daemon 26920 26918 11 23:48 ? 00:00:01 gs -q @stc600pl.upp
-sPAPERSIZE=
Queue status is
> lpq
Printer: lp@polarbear '360x360'
Queue: no printable jobs in queue
Status: removing job '<NULL>' - ABORT at 22:59:33.030
Filter_status: lp is ready and printing
---------------------------------------------
Did anybody have the same experience and knows the remedy ?
Which signal to what process lprm sends ?
Dmitri Pogosyan
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