[Pkg-cups-devel] Bug#659736: cups: parallel:/dev/usb/lp0 consumes 100% cpu and never finishes

Mon Feb 13 14:16:18 UTC 2012

Package: cups
Version: 1.5.2-3
Severity: important

Dear Maintainer,
*** Please consider answering these questions, where appropriate ***

* What led up to the situation?

I am trying to print both from
	via samba from a remote machinee
	locally via lpr

* What exactly did you do (or not do) that was effective (or ineffective)?

I noticed that the backend process parallel:/dev/usb/lp0 never finished and
consumes 100%. That means that the queue is never empty.

If I print locally the output the first print is ok. However since the
backend does not finish the spool does not empty so all subsequent prints
are prohibited.

If I print from samba not even the first print gets out. The backend process
simply consumes 100% (doing polling as strace revealed) in both cases.

*** End of the template - remove these lines ***

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cups depends on:
ii  adduser                3.113+nmu1
ii  bc                     1.06.95-2+b1
ii  cups-client            1.5.2-3
ii  cups-common            1.5.2-3
ii  cups-filters           1.0~b1-3
ii  cups-ppdc              1.5.2-3
ii  debconf [debconf-2.0]  1.5.41
ii  ghostscript            9.05~dfsg-2
ii  libavahi-client3       0.6.30-6
ii  libavahi-common3       0.6.30-6
ii  libc6                  2.13-26
ii  libcups2               1.5.2-3
ii  libcupscgi1            1.5.2-3
ii  libcupsimage2          1.5.2-3
ii  libcupsmime1           1.5.2-3
ii  libcupsppdc1           1.5.2-3
ii  libdbus-1-3            1.4.16-1
ii  libgcc1                1:4.6.2-14
ii  libgnutls26            2.12.16-1
ii  libgssapi-krb5-2       1.10+dfsg~beta1-2
ii  libkrb5-3              1.10+dfsg~beta1-2
ii  libldap-2.4-2          2.4.28-1.1
ii  libpam0g               1.1.3-7
ii  libpaper1              1.1.24+nmu1
ii  libslp1                1.2.1-9
ii  libstdc++6             4.6.2-14
ii  libusb-1.0-0           2:1.0.9~rc3-3
ii  lsb-base               3.2-28.1
ii  poppler-utils          0.16.7-3
ii  procps                 1:3.3.2-3
ii  ssl-cert               1.0.28

Versions of packages cups recommends:
ii  avahi-daemon                                        0.6.30-6
ii  colord                                              0.1.16-2
ii  foomatic-filters                                    4.0.12-1
ii  ghostscript-cups                                    9.05~dfsg-2
ii  printer-driver-gutenprint [cups-driver-gutenprint]  5.2.7-5

Versions of packages cups suggests:
ii  cups-bsd     1.5.2-3
ii  cups-pdf     <none>
ii  foomatic-db  20120212-1
ii  hplip        3.11.12-2
ii  smbclient    2:3.6.3-1
ii  udev         175-3

-- Configuration Files:
/etc/cups/cupsd.conf changed:
LogLevel warn
MaxLogSize 0
SystemGroup lpadmin
Listen *:631
Listen /var/run/cups/cups.sock
Browsing On
BrowseOrder allow,deny
BrowseAllow all
BrowseLocalProtocols CUPS dnssd
DefaultAuthType Basic
DefaultEncryption IfRequested
<Location />
  allow @LOCAL
  Order allow,deny
</Location>
<Location /admin>
  allow @LOCAL
  Order allow,deny
</Location>
<Location /admin/conf>
  AuthType Default
  Require user @SYSTEM
  allow @LOCAL
  Order allow,deny
</Location>
<Policy default>
  <Limit Create-Job Print-Job Print-URI Validate-Job>
    Order deny,allow
  </Limit>
  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job CUPS-Get-Document>
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Cancel-Job CUPS-Authenticate-Job>
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit All>
    Order deny,allow
  </Limit>
</Policy>
<Policy authenticated>
  <Limit Create-Job Print-Job Print-URI Validate-Job>
    AuthType Default
    Order deny,allow
  </Limit>
  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job CUPS-Get-Document>
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Cancel-Job CUPS-Authenticate-Job>
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit All>
    Order deny,allow
  </Limit>
</Policy>

/etc/modprobe.d/blacklist-cups-usblp.conf changed:

-- debconf information:
  cupsys/raw-print: true
  cupsys/backend: ipp, lpd, socket, usb, snmp, dnssd