[Crash-utility] 'log' does not work on Linux HEAD dumps

[Anatol Pomozov]

Hi,

'crash' tool cannot read dmesg/log for dumps from Linux HEAD version:

crash> log
log: WARNING: log buf data structure(s) have changed


The reason is one of the Linux changes in HEAD. This change is in -rc
so not many people see this issue. But it will be released in 3.11.
Here is the change

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=62e32ac3505a0cab1c5ef8ea2c0eab3b26ed855f

I believe crash tool should check 'printk_log' structure and if it is
absent then check for 'log'.