On Mon, September 11, 2017 8:58 pm, Nan Xiao wrote: > Hi all, > > Greetings from me! > > I want to run dmidecode (https://github.com/mirror/dmidecode) on OpenBSD > 6.1, but executing it will report following errors: > > # ./dmidecode > # dmidecode 3.1 > Scanning /dev/mem for entry point. > /dev/mem: Operation not permitted > > After single-step debugging, I find the error is from open /dev/mem: > > if ((fd = open(filename, O_RDONLY)) == -1) > { > if (errno != ENOENT) > perror(filename); > return NULL; > } > > I execute program as a root, and the attributes of `/dev/mem`: > > # ls -lt /dev/mem > crw-r----- 1 root kmem 2, 0 Aug 25 18:38 /dev/mem > > So it should open successfully. Could anyone give some clues of this > issue? > > Thanks very much in advance! > > Best Regards > Nan Xiao >
/dev/mem and /dev/kmem were locked down. https://marc.info/?l=openbsd-cvs&m=147481705211536&w=2 I can't recall if it's been further closed since last year.
