On Thu, 2008-05-08 at 12:31 -0400, Ross S. W. Walker wrote: > Gregory P. Ennis wrote: > > On Thu, 2008-05-08 at 10:46 -0400, Ross S. W. Walker wrote: > > > Gregory P. Ennis wrote: > > > > > > > > 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. > > > > > > It appears to be a flakey USB controller. Is the printer USB? > > > Is it plugged into a USB hub? Check your USB cables, hubs and > > > try to plug it into a different port. > > > > > > > Ross, > > > > Thanks for your response. All the printers are networked and none are > > connected to the server's usb ports. In fact there is nothing > > connected to this server's usb ports. > > > > In looking at the cups error logs I am getting abundant entries of : > > > > (/usr/lib/cups/backend/ipp) crashed on signal 11! > > > > I turned on cups debug, but did not learn anything else. > > > > Thanks again for your help, > > Well the IRQ error is definitely USB related. Maybe a memory check > is in order here. > > Sendmail and cups are not related and the fact that you see errors > in both and strange runaway IRQ errors seems to mean there is a > hardware problem here. > > Check memory (low hanging fruit), then it may be time to start > looking at the motherboard. > > -Ross > Ross, I was hoping it might be something else. I'll check the memory tonight Thanks for your suggestions!!! Greg