I am currently running Ubuntu 12.10.
Both in 12.04, and 12.10, I have been noticing random Kernel Panics that seem to happen only when I am not using the laptop.
I went to follow the guide for getting the crash dump, but after a simulated crash (using sysreq c), /var/crash is empty. It is also empty after one of those random Kernel Panics.
I have confirmed that crashdump has been added to my grub, and loaded (dmesg)
cat /proc/cmdline
Code:
BOOT_IMAGE=/vmlinuz-3.5.0-25-generic root=UUID=f84dd846-ad9e-4b58-93dc-8d48020f9089 ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash acpi_osi= vt.handoff=7
dmesg -i | grep crash
Code:
[ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.5.0-25-generic root=UUID=f84dd846-ad9e-4b58-93dc-8d48020f9089 ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash acpi_osi= vt.handoff=7
[ 0.000000] Reserving 128MB of memory at 720MB for crashkernel (System RAM: 5995MB)
[ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.5.0-25-generic root=UUID=f84dd846-ad9e-4b58-93dc-8d48020f9089 ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash acpi_osi= vt.handoff=7
EDIT: it now appears that kexec/kdump is not loading after the crash - system is not restarting
Any ideas?
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