Red Hat Bugzilla – Bug 190578
after upgrade to kernel 2.6.16-1.2107_FC5 cups hangs when printing
Last modified: 2015-01-04 17:26:51 EST
Description of problem:
after upgrade to kernel 2.6.16-1.2107_FC5 cups hangs when printing (only tested
with networked printer - samba and lpd)
I can list, add and remove printers but can not print, also when I try to print
from a program (ex: evince) it hangs. In openoffice no printers are show.
If I boot with an older kernel (2.6.16-1.2096_FC5) everything works
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. define a cups printer
2. boot with kernel 2.6.16-1.2107_FC5
yap , I have a problem with cups also after upgrade to 2107
using printconf can't apply any change, because never ends applying changes.
this happens only with service cups started .
I try a strace printconf
and stops on waitpid(3936,
3936 3928 0 20:24 pts/1 00:00:00 sh -c /sbin/service cups reload >/dev/null
root 3937 3936 0 20:24 pts/1 00:00:00 /bin/sh /sbin/service cups reload
root 3940 3937 0 20:24 pts/1 00:00:00 /bin/sh /etc/init.d/cups reload
root 3943 3940 0 20:24 pts/1 00:00:00 /usr/bin/python -O
root 3954 3943 0 20:24 pts/1 00:00:00 sh -c /usr/bin/lpoptions -d
$DEFAULT >/dev/null 2>/dev/null
root 3955 3954 0 20:24 pts/1 00:00:00 /usr/bin/lpoptions -d laserjet4250
just after kill 3936 , the changes are applied
some more information:
the problem is with
/usr/bin/lpoptions -d laserjet4250 that hangs !
Interesting... for me (on two different machines, one ppc and one x86_64) CUPS
hangs on boot with the 2.6.16-1.2107_FC5 kernel. If I boot back to a previous
kernel, it works just fine. Based on other bug reports for this kernel
(#190586, #190606), it sounds like htis kernel has some issues.
does booting with pci=nomsi make this go away?
Actually, that option is also broken in this kernel (sigh).
2108, available from http://people.redhat.com/davej/kernels/Fedora/FC5/
has this disabled by default. Give that a try ?
2096: lpr works
2107: lpr hangs
2108: lpr hangs
2108 pci=nomsi: lpr hangs
(In reply to comment #5)
> Actually, that option is also broken in this kernel (sigh).
> 2108, available from http://people.redhat.com/davej/kernels/Fedora/FC5/
> has this disabled by default. Give that a try ?
No its still broken.
So this was caused by kernel upgrade. Good to know, hopefully the issue will be
2.6.16-1.2107_FC5 hangs for me too with anything to do with printing.
Previous kernel OK.
The problem is fixed with the 2111 kernel from:
yes, for me, 2111 fix the problem too.
Davej on http://people.redhat.com/davej/kernels/Fedora/FC5/readme.txt
please correct from:
I can confirm the fact that 2111 fixes the problem as well.