Folks, I was testing the fix for 6791375 and hit upon the following panic
ffffff000f44a8f0 unix:die+e7 () ffffff000f44aa20 unix:trap+19cd () ffffff000f44aa30 unix:_cmntrap+1d0 () ffffff000f44ab50 unix:mutex_enter+b () ffffff000f44abc0 ipnet:ipnet_dispatch+96 () ffffff000f44ac40 genunix:taskq_thread+1b5 () ffffff000f44ac50 unix:thread_start+8 () The module was being unloaded, and the _fini() -> netstack_unregister() has completed and the netstack_ipnet of the netstack_t is NULL. But there are mblks that have been dispatched via the ipnet_taskq and in the above stack trace we hit a NULL pointer when we try to access something off of ihd->ihd_stack->netstack_ipnet. I will file a bug and update the report. This was based off onnv-gate:2009-01-23 Thirumalai
