similar to: How to read text buffer after kernel crash?

Displaying 20 results from an estimated 6000 matches similar to: "How to read text buffer after kernel crash?"

2011 Feb 17
1
Cannot execute memdisk
Hello everyone, this is my first mail. I am trying to pxe boot an ISO CD. I configured DHCP and TFTP. In DHCP config file I define the boot folder as filename "pxelinux.0"; In TFTP config file in /tftpboot/pxelinux.cfg/default I wrote the boot option as LABEL ccc LINUX memdisk INITRD ccc.iso APPEND raw Now I have some problems and parts I don't understand. 1) I downloaded and
2010 Apr 23
0
vmcore on 5.4
Information: 5.4 kernel (2.6.18-164.el5). I have a vmcore (from kdump), if the developers are interested, let me know a place to upload the vmcore file. I used the crash command to do a backtrace. I manage to get machines with later 5.4 and 5.5 to panic the same way. Broadcom or Intel NICs panic the same way. This is an NFS client where the NFS server is restarting several times; NFSv3, mount
2006 Dec 07
1
domU''s crashing Dom0 (Xen + iSCS = timebomb)
I''m experimenting with xen + iscsi, and I founded that under heavy stress domU''s can crash entire system, I''ve reproduced this many many times. My system is like this Software: - iSCSI Enterprise Target v0.4.13 - RedHat AS4 update 4 64bit + Xen 3.0.3-0 Kernel 2.6.16.29 + Open iSCSI v2.0.730 (Initiator) - Bonnie++ v1.03a VM: - Debian 3.1r3 + Open iSCSI v2.0.730
2018 Nov 13
0
centos 7.5 crashed, kernel BUG at net/core/skbuff.c:3668!
... [ 176.025679] random: crng init done [ 411.168635] netem: version 1.3 [ 456.059840] ------------[ cut here ]------------ [ 456.059849] WARNING: CPU: 4 PID: 1918 at net/ipv4/tcp_output.c:1048 tcp_set_skb_tso_segs+0xeb/0x100 [ 456.059851] Modules linked in: sch_netem cirrus ttm drm_kms_helper crc32_pclmul syscopyarea ghash_clmulni_intel sysfillrect sysimgblt fb_sys_fops aesni_intel lrw
2017 Aug 22
1
NTP traffic blocked
I have multiple VM's on the same KVM host. One of the VM's is running NTP. All VM's can reach eachother, no firewall in between. But the problem is, the VM's cannot communicate over port 123/udp to the NTP VM. Network: 172.24.100.0/22 KVM: 172.24.101.50 VM ntp: 172.24.102.10 VM foo: 172.24.102.20 1. On the NTP server, listen for any incoming packets from VM foo
2006 Aug 03
2
RE: [Patch][RFC] Support "xm dump" (is Re: Re:[Patch]Enable "sysrq c" handler for domU coredump)
> Hi, Simon > > >Two things: > > > >1. I''m not convinced ''xm crash'' is needed - ''xm destroy'' will do this > >(and if you want > > a dump, do ''xm dump'' followed by ''xm destroy'') > > > What do you mean? > I think we cannot dump with "xm destroy" now. >
2008 Aug 11
0
[patch] kexec and kdump documentation for xen
Add guide to using the kexec and kdump facility in xen. Signed-off-by: Simon Horman <horms@verge.net.au> --- I the work on this document using an ia64 machine and qemu emulating x86_32. I am yet to verify it on x86_32 hardware or x86_64. Index: xen-unstable.hg/docs/misc/kexec_and_kdump.txt =================================================================== --- /dev/null 1970-01-01
2013 Jul 29
2
[PATCH] kexec/kdump implementation for Xen PV domU
Hi all, Here I am sending as attachments patches enabling kexec/kdump support in Xen PV domU. Only x84_64 architecture is supported. There is no support for i386 but some code could be easily reused. Here is a description of patches: - kexec-tools-2.0.3_20120522.patch: patch for kexec-tools which cleanly applies to version 2.0.3, - kexec-kernel-only_20120522.patch: main kexec/kdump kernel
2013 Jul 29
2
[PATCH] kexec/kdump implementation for Xen PV domU
Hi all, Here I am sending as attachments patches enabling kexec/kdump support in Xen PV domU. Only x84_64 architecture is supported. There is no support for i386 but some code could be easily reused. Here is a description of patches: - kexec-tools-2.0.3_20120522.patch: patch for kexec-tools which cleanly applies to version 2.0.3, - kexec-kernel-only_20120522.patch: main kexec/kdump kernel
2013 Jul 29
2
[PATCH] kexec/kdump implementation for Xen PV domU
Hi all, Here I am sending as attachments patches enabling kexec/kdump support in Xen PV domU. Only x84_64 architecture is supported. There is no support for i386 but some code could be easily reused. Here is a description of patches: - kexec-tools-2.0.3_20120522.patch: patch for kexec-tools which cleanly applies to version 2.0.3, - kexec-kernel-only_20120522.patch: main kexec/kdump kernel
2013 Apr 22
1
Upgrading 6.3 to 6.4 "kdump: mkdumprd: failed to make kdump initrd" should I be concerned?
Howdy, Running a round of updates from 6.3 to 6.4 and I'm seeing the following on all the servers. Want to make sure I'm not going to end up with a kernel panic if I reboot into the new kernel or have any other issues. Apr 22 11:10:21 www kdump: kexec: unloaded kdump kernel Apr 22 11:10:21 www kdump: stopped Apr 22 11:10:21 www kdump: mkdumprd: failed to make kdump initrd Apr 22
2012 Mar 27
6
Debugging (possible) Xen-related hang-issues without the possibility of attaching serial console to capture Xen output
Hey all! I''m currently in the process of trying to debug a (possibly!) Xen-related issue (with Kernel 3.2.9-vanilla as Dom0, and Xen 4.1.2 [almost] vanilla, except for a patch for CVE-2012-0029), where a system freezes without me being able to ascertain a triggering event. The system console is completely unresponsive in the event of hangs (i.e., displays motd and the login prompt,
2020 Aug 28
1
Slow Samba AD DC performance compared to Microsoft AD DC
Sorry I forgot to mention. We use FreeIPA for SSH login. >Thanks for the information. > >I know this is kinda out of topic but is it possible to use samba with ipa client from another domain? > >It is probably broke both Samba and FreeIPA client. > >Our servers run a different domain with FreeIPA. Samba domain is domain.com, FreeIPA domain is domain.cloud > >I know
2009 Jun 25
0
[PATCH node-image] kdump support
Requires "kdump support" patch for ovirt-node Signed-off-by: Alan Pevec <apevec at redhat.com> --- common-blacklist.ks | 2 +- common-pkgs.ks | 2 ++ ovirt-node-image.ks | 10 +++++++++- 3 files changed, 12 insertions(+), 2 deletions(-) diff --git a/common-blacklist.ks b/common-blacklist.ks index 2452237..af7fa07 100644 --- a/common-blacklist.ks +++
2013 Apr 08
0
5.9 update error messages
Just updated one of our servers, and see a bunch of udevd-event[8735]: run_program: ressize 256 too short Along with Apr 8 14:57:48 <servername> kernel: Breaking affinity for irq 209 Apr 8 14:57:48 <servername> kernel: CPU 8 is now offline Apr 8 14:57:49 <servername> kernel: CPU 8 offline: Remove Rx thread Apr 8 14:57:49 <servername> kernel: CPU 9 is now offline Apr
2017 Nov 27
0
[PATCH V3 10/29] drm/nouveau: deprecate pci_get_bus_and_slot()
+nouveau at lists.freedesktop.org On 11/27/2017 11:57 AM, Sinan Kaya wrote: > pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as > where a PCI device is present. This restricts the device drivers to be > reused for other domain numbers. > > Getting ready to remove pci_get_bus_and_slot() function in favor of > pci_get_domain_bus_and_slot(). > >
2012 Dec 28
1
[PATCH v3 01/11] kexec: introduce kexec firmware support
> Daniel Kiper <daniel.kiper at oracle.com> writes: > > > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > > Linux infrastructure and require some support from firmware and/or hypervisor. > > To cope with that problem kexec firmware infrastructure was introduced. > > It allows a developer to use all kexec/kdump features of given firmware
2012 Dec 28
1
[PATCH v3 01/11] kexec: introduce kexec firmware support
> Daniel Kiper <daniel.kiper at oracle.com> writes: > > > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > > Linux infrastructure and require some support from firmware and/or hypervisor. > > To cope with that problem kexec firmware infrastructure was introduced. > > It allows a developer to use all kexec/kdump features of given firmware
2006 Dec 20
0
Kexec / Kdump - xen-3.0.4-testing-13098
Kexec / Kdump - xen-3.0.4-testing-13098 Kexec Kexec Kexec Kexec Kdump Hardware Xen -> Xen -> bzImage -> Xen -> Xen -> Arch Platform Xen bzImage Xen vmlinux vmlinux i386 A PASS PASS PASS PASS PASS i386 B (VMX) PASS PASS PASS PASS
2008 Apr 05
0
BUG(?): multipathd confusion leads to kernel panic in Xen 3.2.1-rc2
Hi all. While playing with iSCSI Enterprise Target + multipathd on CentOS 5.1 (both the target and the initiator/multipath/xen box are Cent 5.1), I encountered a strange fault condition that leads to a kernel panic in a version of Xen 3.2.1-rc2 pulled from a couple of days ago. My lab consists of two Clovertown machines with dual GigE into separate switches. The target box is softraid5