stack trace page with kdump, possible?
Hello, with CentOS 4 I was able to setup a server 1 with netdump client package and a netdump server 2 so that when a panic occured on 1, I received on the netdump server 2 both the vmcore file and another file named "log" containing stack trace (this log on 2 was also filled by commands such as "echo m > /proc/sysrq-trigger" issued on 1). With Fedora 10 and CentOS 5 I now have kdump. I configured it on both kinds of OS so that I successfully get an scp of the vmcore when I force a panic with echo c > /proc/sysrq-trigger. Unfortunately I don't get the log file with the stack trace page and this would be useful for example if the crash happens during the night and the display goes stbdy or if the server immediately reboots and you don't have the time to see the stack trace page. Any help if it is possible to configure kdump so that it repostrs also the stack page? Or if I can easily get the stack page from the vmcore file? Thanks in advance, Gianluca -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: stack trace page with kdump, possible?
Gianluca Cecchi wrote: Hello, with CentOS 4 I was able to setup a server 1 with netdump client package and a netdump server 2 so that when a panic occured on 1, I received on the netdump server 2 both the vmcore file and another file named "log" containing stack trace (this log on 2 was also filled by commands such as "echo m > /proc/sysrq-trigger" issued on 1). With Fedora 10 and CentOS 5 I now have kdump. I configured it on both kinds of OS so that I successfully get an scp of the vmcore when I force a panic with echo c > /proc/sysrq-trigger. Unfortunately I don't get the log file with the stack trace page and this would be useful for example if the crash happens during the night and the display goes stbdy or if the server immediately reboots and you don't have the time to see the stack trace page. Any help if it is possible to configure kdump so that it repostrs also the stack page? Or if I can easily get the stack page from the vmcore file? Although network crash dumps via netdump have been removed from the distribution, the log messages can still be captured using the netconsole facility. See the configuration file in /etc/sysconfig/netconsole and the initscript /etc/init.d/netconsole. You'll also need a syslog or netdump server configured on the network to capture the messages. Regards, Bryn. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: stack trace page with kdump, possible?
On Wed, 14 Jan 2009 11:35:12 + Bryn M. Reeve wrote: > Although network crash dumps via netdump have been removed from the > distribution, the log messages can still be captured using the netconsole > facility. > See the configuration file in /etc/sysconfig/netconsole and the initscript > /etc/init.d/netconsole. > You'll also need a syslog or netdump server configured on the network to > capture the messages. Ok, it works. thanks. If the client is centos5/f10 and so does need netconsole service, the remote should be syslogd server, netdump server alone is not sufficient. Now if I want the logs of the clients on different files and not all in the same /var/log/messages of the syslog server, how can I get it? By default I get lines with ip of the clients to understand the source (.49 and .50) of the type Jan 14 17:24:00 10.4.5.49 SysRq : Jan 14 17:24:00 10.4.5.49 Show Memory Jan 14 17:24:00 10.4.5.49 Mem-info: Jan 14 17:24:00 10.4.5.49 Node 0 Jan 14 17:24:00 10.4.5.49 DMA per-cpu: Jan 14 17:24:00 10.4.5.49 Jan 14 17:24:00 10.4.5.49 cpu 0 hot: high 0, batch 1 used:0 ... Jan 14 17:25:00 10.4.5.50 SysRq : Jan 14 17:25:00 10.4.5.50 Show Memory Jan 14 17:25:00 10.4.5.50 Mem-info: Jan 14 17:25:00 10.4.5.50 Node 0 Jan 14 17:25:00 10.4.5.50 DMA per-cpu: Jan 14 17:25:00 10.4.5.50 Jan 14 17:25:00 10.4.5.50 cpu 0 hot: high 0, batch 1 used:0 can I have different directories for different clients? I did not find an option in syslog.conf for client or server... Tahnks Gianluca -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
