Date: Thu, 19 Mar 2026 14:57:46 +0000 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: Warner Losh <imp@bsdimp.com> Cc: 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: <wryftbwxvsc3mhm6iglbx3ikzentaoewo3ldiw4knyqkckmhmo@hnmn3nosgawc> In-Reply-To: <hqup3oiorbdgvtputen566fcajjoucurqpk7je6qchixat3i6c@zmfpxouvy7vs> References: <69b561ff.39ea9.b797d91@gitrepo.freebsd.org> <2jb2vg6baofimu5xkxf62o5ogaq7fu5pk4o3vzhpegy446bppf@fzwtj6wtwk53> <CANCZdfpaKyzMDL0%2BMk3tSEeqsSU_C-OoWo1Dwwjg%2BG%2BrxiV2Eg@mail.gmail.com> <hqup3oiorbdgvtputen566fcajjoucurqpk7je6qchixat3i6c@zmfpxouvy7vs>
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[-- Attachment #1 --] 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. -- 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/y5nonf44foFAmm8DuEACgkQ/y5nonf4 4fqFKhAAoRygISFBLj05kaUdO9gXvn6pTpr1EA1mQ+YP0yoYeKYLTX6AX1OnC/9c 9wMnLyttIoyPW4A81KY1zk1h197BB4ieikWl0JTj13IKew/xa9XT8SEi9I9/Vc8j ytvmVRY8x9uGLT5JjGUHSGlg2hOwpYtynlzWhk4OALQxDEa/qtiKBLdgOQpBsRQk e5fX9uzoxInDMmOqwBIu+EJIKv1cTQQZsllIlEdtoGgbcaa8I/vv8CgJWhsYPdDY /XQDZTbjl3t/n/k79/5uP07T9PjueMpEhaiIE7vnKOBR5c9FQlYL6+l/6MCtktyb VGB8dfjjGlvrSWbo2EPSYwmxcw9GTbdV8I3ML00rKijEkM+wdEo/5x9a8b46M3kV Q4V9bZkZgizygbVYziY3Stn5WpOT3tyuO4zUQ12foP+0FuGGkCUUiYosKhGRSacH hnWpZ9aOZN6b4pVvfPmfBXCXlKSy7e3Mez/HLsT4i767x0OIwnuFqeAIrerN8zcJ j4joI4mAMSHXnfKx2jphyQ/RndmnAE9EeM3BpdGbEk2fb3CfRqtSKsxt5mEwFR26 j4nn7hHdxMYENXtNnzUo8EDttH65rUCod7Rf8tphsvPXgZnWj+ZM4pIDL7TnBw9P lbo5Mk8375JIl+g62Afy2QbkspNZoz9m0FbSEW/nfXDKk2ScpIc= =2zon -----END PGP SIGNATURE-----home | help
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