Re: [Crash-utility] [Patch 1/4][kernel][slimdump] Add new elf-note of type NT_NOCOREDUMP to capture slimdump
On Wed, Oct 05, 2011 at 12:00:38PM -0400, Valdis.Kletnieks(a)vt.edu wrote:
On Wed, 05 Oct 2011 11:52:17 EDT, Vivek Goyal said:
> I am assuming that basic MCE error messages are available in kernel log.
They're not in the kernel log if it's an MCE that causes the kernel to declare
a panic. There's some MCE's that you can retry the operation and continue, and
some that you can get away with poisoning a page, killing the process, and rest
of the system is OK. But some you really need to roll over and die because you
can't guarantee kernel integrity anymore.
And at that point, those messages are never gonna make it to syslogd and onto
disk.
Actually I meant that these messages should have made into kernel log
buffer and not on disk. And user space has capability to just extract
kernel log buffer by looking at /proc/vmcore.
Thanks
Vivek