kernel-debuginfo ovz-kernel; kernel panic
Hi, all. A few questions. 1. Does anybody know, where I can obtain the kernel-debuginfo and kernel-debuginfo-common packages for stable ovz-kernel ? (2.6.18-238.5.1.el5.028stab085.2) 2. After upgrading the server for 16G ram, I started to see a lot of kernel panics. The hardware is desktop grade, AMD Phenom(tm) II X4 945 Processor MSI 770-C45 16G of mem. OS: CentOS 5.5 with the latest openvz kernel. However, I've checked the mem with memtest86+, and it shows no errors. And I've successfully got a kernel dump (with kdump), so it seems to be related to some software errors. With 8G of mem, the server was running 1 year without any errors. Any suggestions ? PS. also in the messages: kernel: amd64_edac: probe of 0000:00:18.2 failed with error -22 kernel: EDAC amd64_edac: Ver: 3.2.0 May 18 2010 kernel: EDAC amd64: This node reports that Memory ECC is currently disabled, set F3x44[22] (0000:00:18.3). kernel: EDAC amd64: WARNING: ECC is disabled by BIOS. Module will NOT be loaded.
Re: kernel-debuginfo ovz-kernel; kernel panic
On 03/25/2011 03:00 PM, Sergej Kandyla wrote: > Hi, all. > A few questions. > > 1. Does anybody know, where I can obtain the kernel-debuginfo and > kernel-debuginfo-common packages for stable ovz-kernel ? > (2.6.18-238.5.1.el5.028stab085.2) I'm sorry, build of debuginfo packages is currently broken in spec. however you can rebuild kernel with default config with enabled debuginfo option > 2. > After upgrading the server for 16G ram, I started to see a lot of kernel panics. > > The hardware is desktop grade, AMD Phenom(tm) II X4 945 Processor > MSI 770-C45 > 16G of mem. > > OS: CentOS 5.5 with the latest openvz kernel. > > However, I've checked the mem with memtest86+, and it shows no errors. And I've > successfully got a kernel dump (with kdump), so it seems to be related to some > software errors. > > With 8G of mem, the server was running 1 year without any errors. > > Any suggestions ? Please catch kernel panic messages and report to bugzilla.openvz.org > PS. also in the messages: > kernel: amd64_edac: probe of 0000:00:18.2 failed with error -22 > kernel: EDAC amd64_edac: Ver: 3.2.0 May 18 2010 > kernel: EDAC amd64: This node reports that Memory ECC is currently disabled, set > F3x44[22] (0000:00:18.3). > kernel: EDAC amd64: WARNING: ECC is disabled by BIOS. Module will NOT be loaded. IMHO it isn't fatal messages, you can ignore it. thank you, Vasily Averin
Vasily Averin wrote: >> 1. Does anybody know, where I can obtain the kernel-debuginfo and >> kernel-debuginfo-common packages for stable ovz-kernel ? >> (2.6.18-238.5.1.el5.028stab085.2) > > I'm sorry, build of debuginfo packages is currently broken in spec. > however you can rebuild kernel with default config with enabled > debuginfo option Thanks for your reply. 1. First I've realized that the newest version of ovz kernel has appeared. And also there is an ovzkernel-debug package present. Could you tell me, what the package ovzkernel-debug means ? Will it enough for debugging the kernel coredump with crash utility ? 2. Following your advice, I've rebuilded the kernel with the next way: yum install auto-buildrequires gcc redhat-rpm-config wget current_kernel_src.rpm rpm -ivh current_kernel_src.rpm cd /usr/src/redhat/SPECS/ set in kernel-ovz.spec: %define _without_debuginfo 0 rpmbuild -bp kernel-ovz.spec rpmbuild -ba --target=`uname -i` kernel-ovz.spec And currently I have a choose what kernel version I need to install: # ls -1 ../RPMS/x86_64/ ovzkernel-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm ovzkernel-debug-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm ovzkernel-devel-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm ovzkernel-xen-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm ovzkernel-xen-devel-2.6.18-238.5.1.el5.028stab085.3.x86_64.r pm And I'm a little confused: use the official openvz builded ovzkernel-debug \ ovzkernel or install my own builded kernel ovzkernel or ovzkernel-debug ... 3. It's good for current versions of the kernel, however how I can analize the obtained vmcores from previous kernels? To analyze the vmcore with "crash" I need a corresponding mapfile for that kernel versions. Or there is not a big sense to do this? >> 2. >> After upgrading the server for 16G ram, I started to see a lot of >> kernel panics. >> >> > Please catch kernel panic messages and report to bugzilla.openvz.org > It says something like this: RIP [<ffffffff802451ae>] rt_check_expire +0xea/0x23b Kernel panic - not syncing: Fatal exeption I'm not sure that this will be helpful without analyzing of kernel dump. Thanks a lot!