root@ip-10-121-11-51:~# uname -r
3.2.0-41-generic
root@ip-10-121-11-51:~# dmesg -c > /dev/null
root@ip-10-121-11-51:~# echo l > /proc/sysrq-trigger
root@ip-10-121-11-51:~# dmesg
[4817826.775851] SysRq : Show backtrace of all active CPUs
[4817826.775870] sending NMI to all CPUs:
[4817826.775873] xen: vector 0x2 is not implemented <-------
Hi Joseph,
It seems that the test kernel resolves this bug.
root@ip- 10-121- 11-51:~ # uname -r 10-121- 11-51:~ # dmesg -c > /dev/null 10-121- 11-51:~ # echo l > /proc/sysrq-trigger 10-121- 11-51:~ # dmesg
3.2.0-41-generic
root@ip-
root@ip-
root@ip-
[4817826.775851] SysRq : Show backtrace of all active CPUs
[4817826.775870] sending NMI to all CPUs:
[4817826.775873] xen: vector 0x2 is not implemented <-------
Same behavior as Quantal's kernel.