I have an updated system ( 1.3.2 to 1.5.2-2.3 ) i have switched from xen kernel to plain el5 due to random kernel soft lockups with wanpipe drivers. I now experience kernel panics if and every time i issue "service dahdi stop" while amportal is still running. I am not able to get the crash dump "Memory for crash kernel (0x0 to 0x0) notwithin permissible range" so i'll try to copy what i am seeing on the screen. Code: Bad EIP value. EIP: [<f917289d>] 0xf917289d SS:ESP 0068:c072dfd0 <0>Kernel panic - not syncing : Fatal exception in interupt BUG: warning at arch/i386/kernel/smp.c:550/smp_call_function() (Tainted: GF) ( i've left out the HEX on the following messages ) stop_this_cpu smp_call_function printk smp_send_stop panic die do_page_fault do_page_fault error_code run_timer_softirq __do_softirq apic_timer_interrupt default_idle default_idle cpu_idle The only constant error i am getting while boot despite of the used kernel is Code: wanpipe: no version for "Dahdi_alarm_notify" found: kernel tainted Any ideas ? Should i open a bug report or is this a known issue ? THX !