Hello I am trying to get a dump since the kernel is crashing at boot. I cannot call dumpsys at the db> prompt manually since keyboard is hung, probably because it's a (internal) USB keyboard. So I figured out I'd just call dumpsys() directly in sys/ddb/db_command.c, line 463, before it gets hung at reading from keyboard at line 465.
However, that naive call does not work, dumpsys() probably needs more parameters to be set. I put a few kprintfs(); into the dumpsys() in sys/kern/kern_shutdown.c and see it enter there, but it never makes into the if() loop (line 913 in sys/kern/kern_shutdown.c) and call md_dumpsys() that does the actual dump. Question: can anyone suggest how to call dumpsys() so I can get the kernel dump to the swap partition? I have "dumpdev="ad4s1b"" in /boot/loader.conf. Thanks Peeter --
