Messages in this thread | | | Subject | Re: vmcore not getting created on linux-4.7 | From | nborisov <> | Date | Fri, 24 Jun 2016 18:06:31 +0300 |
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On 24.06.2016 17:45, Steve Wise wrote: > I've been trying to get crash dumps working on linux-4.7 and haven't succeeded. > The kdump kernel boots up and appears to be chugging along and then just reboots > and never creates the vmcore, and fails to create the vmcore-dmesg.txt, though > I've never seen that working on my nodes. Below is the tail of the boot. > > Any ideas? > > Saving to the local filesystem UUID=f63753d9-74a5-4db8-9b63-2fc1ba2b5f85 > e2fsck 1.42.12.wc1 (15-Sep-2014) > /dev/sda2: recovering journal > Setting free inodes count to 3490861 (was 3490926) > Setting freeEXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: > blocks count to 7307269 (was 7307159) > /dev/sda2: clean, 678867/4169728 files, 9358331/16665600 blocks > Free memory/Total memory (free %): 45936 / 112096 ( 40.9792 ) > Loading SELINUX policy > SELinux: Disabled at runtime. > audit: type=1404 audit(1466753867.960:2): selinux=0 auid=4294967295 > ses=4294967295 > Policy load failed, a relabel will be required on reboot > Saving vmcore-dmesg.txhpet1: lost 88 rtc interrupts > t > Missing the struct log size export > Saving vmcore-dmesg.txt failed
Regarding the vmcore-dmesg failed, it's likely you are hitting this issue:
http://lists.infradead.org/pipermail/kexec/2012-July/006602.html
Can you try to download an compile the latest kexec tools from git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
Also what's the content of your /etc/kdump.conf file?
> umount: can't umount /mnt/selinux: Invalid argument > sd 3:0:0:0: [sdb] Synchronizing SCSI cache > sd 1:0:0:0: [sda] Synchronizing SCSI cache > iw_cxgb4:0000:82:00.4: Detach > reboot: Restarting system > reboot: machine restart >
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