System segfaults in kernel, and on chroot in rescue disk
Posted: 2018/03/08 19:38:59
One of the users was active on a system last night when everything began segfaulting. This morning it was impossible for me to get into it through the console or a serial port and it eventually had to be shut down with the power button. On reboot it put up a Centos 6 spash screen and then shortly thereafter segfaulted.
Booted a Centos 7 DVD (all I had on hand) and went into the rescue mode. All the disks look OK (SMART values good) and the RAID (PERC H310) filesystems all fsck OK. However, doing this:
segfaults.
In other words, it behaves exactly like this:
https://access.redhat.com/solutions/386003
but I don't have a subscription so cannot read the solution there.
I don't know what the user was doing but he has root so anything is possible.
Some other posts suggest that this is the phenotype a system shows after the incorrect installation of glibc for the wrong architecture.
Anyway, it is not in great shape. The boot loader seems to be intact, it gives the option of selecting from various kernels, and it lets me edit the options. But all of them segfault at the same place.
Anybody been through this before? I think the rescue disk needs to check that all of the installed RPMs are valid, but since I cannot chroot into that system, I'm not sure how to make rpm do that.
Thanks,
David Mathog
Booted a Centos 7 DVD (all I had on hand) and went into the rescue mode. All the disks look OK (SMART values good) and the RAID (PERC H310) filesystems all fsck OK. However, doing this:
Code: Select all
chroot /mnt/sysimage
In other words, it behaves exactly like this:
https://access.redhat.com/solutions/386003
but I don't have a subscription so cannot read the solution there.
I don't know what the user was doing but he has root so anything is possible.
Some other posts suggest that this is the phenotype a system shows after the incorrect installation of glibc for the wrong architecture.
Anyway, it is not in great shape. The boot loader seems to be intact, it gives the option of selecting from various kernels, and it lets me edit the options. But all of them segfault at the same place.
Anybody been through this before? I think the rescue disk needs to check that all of the installed RPMs are valid, but since I cannot chroot into that system, I'm not sure how to make rpm do that.
Thanks,
David Mathog