Cannot configure printer - "client-error-bad-request"

[L. Drisis]

CUPS is setup properly and prints without problems. However, when we try to "Configure Printer" from the web interface, we get the error message "client-error-bad-request" and the changes are not done.

We tried increasing the log level (see below), and the log file showed several corrupted strings as bad request lines (actually the strings are from the ppd file and not requests).

We are using a freshly installed Red Hat Enterprise Linux 3 (Taroon update 2) with CUPS 1.1.20.

Any hints? Thanks in advance for your help!

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Excerpt from the log file:

D [24/Aug/2004:15:16:01 +0200] CGI /usr/lib/cups/cgi-bin/admin.cgi started - PID = 2455
I [24/Aug/2004:15:16:01 +0200] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=2455)
D [24/Aug/2004:15:16:01 +0200] SendCommand() 5 file=8
D [24/Aug/2004:15:16:04 +0200] AcceptClient() 7 from localhost:631.
D [24/Aug/2004:15:16:04 +0200] AcceptClient() 9 from localhost:631.
D [24/Aug/2004:15:16:04 +0200] ReadClient() 9 POST / HTTP/1.1
D [24/Aug/2004:15:16:04 +0200] ProcessIPPRequest: 9 status_code=0
D [24/Aug/2004:15:16:04 +0200] ReadClient() 9 GET /printers/PPDTEST.ppd HTTP/1.1
D [24/Aug/2004:15:16:04 +0200] SendFile() 9 file=10
D [24/Aug/2004:15:16:05 +0200] ReadClient() 7 POST /admin/ HTTP/1.1
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=401 (Unauthorized)
E [24/Aug/2004:15:16:05 +0200] Bad request line "\n) print flush"!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad request line "xch pop } ifelse  } ifelse } bind""!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad request line "p /ImagingBBox null put"!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad request line "ore /PageSize exch def"!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad URI ""60"" in request!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=405 (Unknown)
E [24/Aug/2004:15:16:05 +0200] Bad request line "w.71lpi.600dpi/71 lpi / 600 dpi: "0.0""!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad request line "2400dpi/175 lpi / 2400 dpi: "175.0""!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
E [24/Aug/2004:15:16:05 +0200] Bad request line "="!
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=400 (Bad Request)
D [24/Aug/2004:15:16:05 +0200] CloseClient() 7
D [24/Aug/2004:15:16:05 +0200] AcceptClient() 7 from localhost:631.
D [24/Aug/2004:15:16:05 +0200] CloseClient() 9
D [24/Aug/2004:15:16:05 +0200] ReadClient() 7 POST /admin/ HTTP/1.1
D [24/Aug/2004:15:16:05 +0200] SendError() 7 code=401 (Unauthorized)
D [24/Aug/2004:15:16:05 +0200] CloseClient() 7
D [24/Aug/2004:15:17:13 +0200] CloseClient() 5
D [24/Aug/2004:15:20:05 +0200] AcceptClient() 5 from localhost:631.
D [24/Aug/2004:15:20:05 +0200] ReadClient() 5 GET /printers/PPDTEST.ppd HTTP/1.0
D [24/Aug/2004:15:20:05 +0200] SendFile() 5 file=7
D [24/Aug/2004:15:20:05 +0200] CloseClient() 5
D [24/Aug/2004:15:25:29 +0200] AcceptClient() 5 from localhost:631.
D [24/Aug/2004:15:25:29 +0200] ReadClient() 5 GET /printers HTTP/1.1
D [24/Aug/2004:15:25:29 +0200] CGI /usr/lib/cups/cgi-bin/printers.cgi started - PID = 2493
I [24/Aug/2004:15:25:29 +0200] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=2493)