On Thu, 26-Apr-2018 at 11:55:19 +0200, Dimitry Andric wrote: > On 25 Apr 2018, at 18:58, Andre Albsmeier <andre.albsme...@siemens.com> wrote: > > > > I have set up a new system disk for an i386 11.2-PRERELEASE box. I did the > > usual > > > > gpart create -s gpt $disk > > gpart add -t freebsd-boot -s 984 $disk > > gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 $disk > > ... > > > > thing, just to notice that the box wouldn't boot. It seems to hang where > > stage 2 should be run -- when the '\' should start spinning the screen > > turns white and the box hangs (tested on two machines, an Asus P5W and a > > Supermicro A2SAV). > > > > So I replaced gptboot on the new disk by the one from an older machine > > and everything was fine. I wanted to find out what is actually causing > > the issue and recompiled /usr/src/stand after updating the old sources > > in several steps. > > > > Eventually it turned out that it depends on the compiler. When compiling > > the latest /usr/src/stand with clang 5.0.1 the resulting gptboot works. > > When using 6.0.0 it doesn't. To be exact, it's gptboot.o which is causing > > the problems. When using a gptboot.o from a clang 5 system it is OK, when > > using a gptboot.o from a clang 6 system it fails. > > > > To add more confusion: I usually have WITHOUT_LOADER_GELI in my make.conf. > > When removing this, the resulting gptboot works even when compiled with > > clang 6... > > > > I can reproduce this in case s.o. wants me to do some tests... > > I can't reproduce it on my end, unfortunately. I downloaded the latest > FreeBSD-11.2-PRERELEASE-i386-20180420-r332802 snapshot, installed it to > a GPT partitioned disk, and it boots just fine.
Out of curiosity I removed -O1 from stand/i386/gptboot/Makefile so the standard -O2 is used. Now the resulting gptboot is: -rw-rw---- 1 andre wheel 22023 30 Apr 11:51 /usr/obj/src/src-11/stand/i386/gptboot/gptboot and it works! So something is screwed up when compiling gptboot with -O1 (and WITHOUT_LOADER_GELI and with clang 6.0.0). _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"