On Wed, Sep 18, 2019, 7:37 AM Toomas Soome <tsoome_at_me.com> wrote: > > > On 17 Sep 2019, at 14:21, Warner Losh <imp_at_bsdimp.com> wrote: > > > > On Tue, Sep 17, 2019, 11:24 AM Toomas Soome <tsoome_at_me.com> wrote: > >> >> >> On 17 Sep 2019, at 13:09, Warner Losh <imp_at_bsdimp.com> wrote: >> >> >> >> On Tue, Sep 17, 2019, 6:47 AM Toomas Soome <tsoome_at_me.com> wrote: >> >>> >>> >>> > On 17 Sep 2019, at 08:30, KIRIYAMA Kazuhiko <kiri_at_truefc.org> wrote: >>> > >>> > Hi,all >>> > >>> > Yesterday I've updated latest head (r352368) and rebuild >>> > 13.0-CURRENT. All went fine, but when I boot, it's stopped >>> > at boot stage. Then I typed `boot', booted normally and put >>> > login prompt and login go ahead. But `shutdown -r now', >>> > stopped at loader prompt same as login case. What happened? >>> > All I've done is whithin bhyve VM. >>> > >>> > >>> >>> >>> > Consoles: userboot >>> > >>> > FreeBSD/amd64 User boot, Revision 1.1 >>> > (Mon Jun 18 16:11:55 UTC 2018 root_at_releng3.nyi.freebsd.org) >>> > Loading /boot/defaults/loader.conf >>> > xemit not found >>> > Error while including /boot/frames.4th, in the line: >>> > h_el _at_ xemit >>> > >>> > can't load 'kernel' >>> > >>> > Type '?' for a list of commands, 'help' for more detailed help. >>> > OK >>> > >>> >>> This is unfortunate case where the guest image has more recent boot >>> scripts than hosts /boot/userboot.so has. I did push the fix for that issue >>> to stable/11 and stable/12. The patch does introduce xemit word. >>> >>> Such situation is unfortunate, but accident waiting to happen with this >>> method where we are attempting to use bootloader (userboot.so) from older >>> system to load guest vm. >>> >> >> Can we provide a fallback to xemit builtin for old systems without it? I >> believe we did this for other things as a transition. Forth has a way to do >> this, though we need to make sure we properly constrain what we pass to >> emit... >> >> Warner >> >> P.s. I'm at legoland this week, so I can't look at it for a bit. >> >> >> Well, the only way to avoid such issue is to make sure the guest >> environment is providing all the needed bits, but since we do have >> interpreter inside the userboot.so and userboot.so is in host, this does >> set rather unfortunate limits what we can do. >> > > Yes. I understand that we are limited in our scripts to somehow testing if > xemit is a forth word and if not providing a fallback implementation of it > in forth using emit. > > > > done:) > Thanks Warner rgds, > toomas > > > >Received on Wed Sep 18 2019 - 06:31:14 UTC
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