Date: Sat, 21 Mar 2026 15:08:32 +0000 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: A FreeBSD User <freebsd@walstatt-de.de> Cc: Charlie Li <vishwin@freebsd.org>, Warner Losh <imp@bsdimp.com>, Martin Matuska <mm@freebsd.org>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: 8a62a2a5659d - main - zfs: merge openzfs/zfs@f8e5af53e Message-ID: <qeang5o4tlutdyxu2zfksbpljrrvf22eebf6r7b62umffzaymn@or5qwqnmbtbx> In-Reply-To: <20260321090444.6f81da15@thor.sb211.local> References: <69b561ff.39ea9.b797d91@gitrepo.freebsd.org> <2jb2vg6baofimu5xkxf62o5ogaq7fu5pk4o3vzhpegy446bppf@fzwtj6wtwk53> <CANCZdfpaKyzMDL0%2BMk3tSEeqsSU_C-OoWo1Dwwjg%2BG%2BrxiV2Eg@mail.gmail.com> <hqup3oiorbdgvtputen566fcajjoucurqpk7je6qchixat3i6c@zmfpxouvy7vs> <wryftbwxvsc3mhm6iglbx3ikzentaoewo3ldiw4knyqkckmhmo@hnmn3nosgawc> <becfc71c-2ea1-4a13-a3b1-3235f056badf@freebsd.org> <20260321090444.6f81da15@thor.sb211.local>
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[-- Attachment #1 --] On Sat, Mar 21, 2026 at 09:04:17AM +0100, A FreeBSD User wrote: > Am Tage des Herren Fri, 20 Mar 2026 23:27:20 -0400 > Charlie Li <vishwin@freebsd.org> schrieb: > > > Shawn Webb wrote: > > > On Tue, Mar 17, 2026 at 04:52:16PM +0000, Shawn Webb wrote: > > >> On Tue, Mar 17, 2026 at 10:44:59AM -0600, Warner Losh wrote: > > >>> On Tue, Mar 17, 2026 at 10:36 AM Shawn Webb <shawn.webb@hardenedbsd.org> > > >>> wrote: > > >>> > > >>>> Hey Martin, > > >>>> > > >>>> On Sat, Mar 14, 2026 at 01:26:23PM +0000, Martin Matuska wrote: > > >>>>> The branch main has been updated by mm: > > >>>>> > > >>>>> URL: > > >>>> https://cgit.FreeBSD.org/src/commit/?id=8a62a2a5659d1839d8799b4274c04469d7f17c78 > > >>>>> > > >>>>> commit 8a62a2a5659d1839d8799b4274c04469d7f17c78 > > >>>>> Merge: f91464171d61 f8e5af53e92f > > >>>>> Author: Martin Matuska <mm@FreeBSD.org> > > >>>>> AuthorDate: 2026-03-14 12:14:56 +0000 > > >>>>> Commit: Martin Matuska <mm@FreeBSD.org> > > >>>>> CommitDate: 2026-03-14 12:14:56 +0000 > > >>>>> > > >>>>> [snip for brevity] > > >>>>> > > >>>>> Obtained from: OpenZFS > > >>>>> OpenZFS commit: f8e5af53e92fa7c03393fbd4922cb9c1d0c15920 > > >>>> > > >>>> This commit seems to cause issues when building boot loader related > > >>>> code: > > >>>> > > >>>> ==== BEGIN LOG ==== > > >>>> 114232 bytes available > > >>>> btxld -v -f aout -e 0x200000 -o loader_simp -l > > >>>> /usr/obj/usr/src/amd64.amd64/stand/i386/btx/btxldr/btxldr -b > > >>>> /usr/obj/usr/src/amd64.amd64/stand/i386/btx/btx/btx loader_simp.bin > > >>>> kernel: ver=1.02 size=690 load=9000 entry=9010 map=16M pgctl=0:58 > > >>>> client: fmt=elf size=5e2e8 text=57930 data=514c bss=7470 entry=0 > > >>>> output: fmt=aout size=61000 text=1000 data=5f000 org=200000 entry=200000 > > >>>> ===> stand/i386/pxeldr (all) > > >>>> -560 bytes available > > >>>> *** Error code 1 > > >>>> > > >>> > > >>> What all do you have enabled? The defaults aren't even close to running out > > >>> of space (though I've not looked at this). > > >> > > >> Hey Warner, > > >> > > >> Thanks for reaching out! I've uploaded `make showconfig` here: > > >> https://hardenedbsd.org/~shawn/2026-03-17_srcconf-r01.txt > > >> > > >> The following options are specific to HardenedBSD (in no particular > > >> order): > > >> > > >> 1. MK_HBSD_UPDATE > > >> 2. MK_HBSDCONTROL > > >> 3. MK_PIE > > >> 4. MK_RELRO > > >> 5. MK_SHLIBRANDOM > > >> 6. MK_ZERO_REGS > > >> 7. MK_SPECTREV1_FIX > > >> 8. MK_SAFESTACK > > >> 9. MK_RETPOLINE > > >> 10. MK_LTOLIB > > >> 11. MK_CFI > > > > > > MK_RETPOLINE was the culprit. Something about this ZFS commit causes > > > LLVM to emit more retpoline entries than before--too many for a little > > > bootloader. That might be something to investigate later, but only to > > > satisfy a curious mind, not to actuall fix anything (since nothing's > > > actually broken.) > > > > > > Since it doesn't really make sense to apply speculative execution > > > mitigations to a bootloader, I disabled retpoline for a components > > > in stand/. > > > > > > Good to go. > > > > > Also just got bit by this, albeit during the lua loader, since I have > > WITH_RETPOLINE in my src.conf. > > > > Hello, > > I do not have WITH_RETPOLINE in my /etc/src.conf, but since I got this mysterious error about > not enough bytes left, I use WITHOUT_LOADER_PXEBOOT= YES (due to issues with WITH_BEARSSL=YES > also used). > Despite not using any WITH_RETPOLINE I also catch the error ... Something about this ZFS commit causes the boot laoder to be too big. I guess the first sign of trouble was with retpolines, but there seem to now be additional signs. What's the process for filing a bug report against OpenzFS for something like this? (Not asking you directly, just a general question for the thread.) Thanks, -- Shawn Webb Cofounder / Security Engineer HardenedBSD Signal Username: shawn_webb.74 Tor-ified Signal: +1 303-901-1600 / shawn_webb_opsec.50 https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEA6TL67gupaZ9nzhT/y5nonf44foFAmm+tGIACgkQ/y5nonf4 4fqx/A/9Eb86gQzxeQNm5r52qRJ3IzWYPFO7Wn7xoyoTCW9x8rAU2smcbUfzCMIa k2ca36Rf7fCPIeeYjHJJdHKdsYSf1j2lBsClpECqP7ugl4q018RD7S1oD2wHmVHk NbS8JZffE/bGzY4MZUDJgcOrTtQK9/GwdYlTl+a/bVIRHLW4gq9yuS92dpycrVdN GlEzKWtBgC0BYJtFak5yNDKFhm0k+kAxfgCtWDQyztIAooNu/SF1ly9A4pWYGOEs SK+ni5q6xlxO280jlaQqa6UJGm8enz4l6ScwpRCZXoDnPpbI55fSAAJntnkXe7Na V3UD5vFrhv6FOH7QJ/yp64k88sikLzOX0K156BVyVrqpkLjwfv09276D5k5SnoQM hurZ+TEqevOjOREsJ5wzgbLzee/hTMN0XMHO/z/VU0lqR70DR3qezdWAt0jTfMd1 R0DmYhMwZnj5k/ddnCmdEMKaoL8Xi6a4c0dl5zDr8MueCyI5ENssLkOpvBtwGpJ3 b/e7GxoBJuQNa8OZ1QTZ0gi1iC3be/q3GG2I6dsu2FtlOqRLF5T5HUOGorL6Flk4 YiYmpdEXHAcU5nsQpiT3h6WDc4l5N2efYyJAgbOIQcHJuqdIIsMLPwbabYCuOOdb N8paDa3c9yQqzm9VSZOTnubsXPz8ROlZj47VN4Fa6b6Z7T/NxqY= =BHUv -----END PGP SIGNATURE-----home | help
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