This exact problem came up last month. pmap_remove_pages is tripping over a corrupted page table entry (pte). Unfortunately, by the time the panic occurs, pmap_remove_pages has overwritten the corrupted pte with zero.
Earlier this month, I added a KASSERT to detect this problem (and panic) before the corrupted pte is overwritten. This KASSERT seems to be missing from your kernel. Could you turn on assertion checking in your kernel configuration and/or update to a newer kernel. Alan To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
