[CentOS] cups causing segfault

[Gregory P. Ennis]

On Wed, 2008-05-07 at 12:00 -0500, Gregory P. Ennis wrote:
> Everyone,
> 
> I have a new installation of Centos 5.1 that I am using on a gateway
> server that also has dhcp, named servers.  I also have cups set up to
> function as a print server, and sendmail is being used as a relay to our
> mail server.  yum-cron appears to be updating everything daily as
> desired.
> 
> This Centos 5.1 gateway was created to replace a Fedora Core 5 system
> with the same functions.  When I set up cups I copied the FC5
> subdirectory into the Centos 5.1 system.  Everything appears to work as
> expected.
> 
> For some reason I am having sendmail crator without giving me a notice
> in the logs as far as I can determine.  However, when I looked at the
> messages logs I found it filled with many entries in the form of :
> 
> kernel: ipp[24519]: segfault at 0000000000000000 rip 00002aaaabf2abc0
> rsp 00007fff25495348 error 4
> 
> I've done a google search and there appeared to be a problem with
> doubled printer entries in the printer.conf causing the log entry, but
> after checking my printer.conf file everything appears to be ok.  This
> file also worked on FC5 without a problem.
> 
> I am not sure if the cups problem is related to the sendmail problem.
> 
> Any ideas?
> 
> Greg Ennis
> 

I have tried several things in the past 48 hours to try to understand
what is happening.  The only thing I have done that seems to have made a
difference is that I have switched 2.6.18-53.1.14.el5xen to
2.6.18-53.1.14.el5.  

I am still getting the following log entries :

May  8 08:23:14 DeGw kernel: ipp[11677]: segfault at 0000000000000000
rip 00002aaaabf2abc0 rsp 00007fff7b7ff6b8 error 4
May  8 08:28:26 DeGw kernel: ipp[12925]: segfault at 0000000000000000
rip 00002aaaabf2abc0 rsp 00007fffa5ab6988 error 4

However I have only received 7 of these since last night instead of
hundreds while running xen.

When I booted the system last night with 2.6.18-53.1.14.el5 I received
some additional "messages" log entries :

May  8 01:50:00 DeGw kernel: irq 193: nobody cared (try booting with the
"irqpoll" option)
May  8 01:50:00 DeGw kernel:
May  8 01:50:00 DeGw kernel: Call Trace:
May  8 01:50:00 DeGw kernel:  <IRQ>  [<ffffffff800b703a>]
__report_bad_irq+0x30/0x7d
May  8 01:50:00 DeGw kernel:  [<ffffffff800b726d>] note_interrupt
+0x1e6/0x227
May  8 01:50:00 DeGw kernel:  [<ffffffff800b677f>] __do_IRQ+0xc7/0x105
May  8 01:50:00 DeGw kernel:  [<ffffffff80011cc5>] __do_softirq
+0x5e/0xd5
May  8 01:50:00 DeGw kernel:  [<ffffffff8006b3bd>] do_IRQ+0xe7/0xf5
May  8 01:50:00 DeGw kernel:  [<ffffffff80069d0e>] default_idle+0x0/0x50
May  8 01:50:00 DeGw kernel:  [<ffffffff8005c615>] ret_from_intr+0x0/0xa
May  8 01:50:00 DeGw kernel:  <EOI>  [<ffffffff80069d37>] default_idle
+0x29/0x50
May  8 01:50:00 DeGw kernel:  [<ffffffff80046fb1>] cpu_idle+0x95/0xb8
May  8 01:50:00 DeGw kernel:  [<ffffffff803d3806>] start_kernel
+0x220/0x225
May  8 01:50:00 DeGw kernel:  [<ffffffff803d3237>] _sinittext
+0x237/0x23e
May  8 01:50:00 DeGw kernel:
May  8 01:50:00 DeGw kernel: handlers:
May  8 01:50:00 DeGw kernel: [<ffffffff801dc154>] (usb_hcd_irq+0x0/0x55)
May  8 01:50:00 DeGw kernel: Disabling IRQ #193

If any of you can help me get a start on this problem I would sure
appreciate your help.

Thanks,

Greg Ennis