On Sun, Mar 06, 2016 at 05:11:11PM -0800, Julian Elischer wrote:
> On 6/03/2016 7:57 AM, Dimitry Andric wrote:
> > Author: dim
> > Date: Sun Mar 6 15:57:43 2016
> > New Revision: 296428
> > URL: https://svnweb.freebsd.org/changeset/base/296428
> >
> > Log:
> > Since kernel modules can now contain sections of type SHT_AMD64_UNWIND,
> > the boot loader should not skip over these anymore while loading images.
> > Otherwise the kernel can still panic when it doesn't find the .eh_frame
> > section belonging to the .rela.eh_frame section.
> >
> > Unfortunately this will require installing boot loaders from sys/boot
> > before attempting to boot with a new kernel.
>
> what happens to someone who doesn't replace their bootblocks?
> Or is this just the loader?
>
> The general way we have handled this sort of thing in the past is that
> we do something
> that produces a nagging message for a decent time before it becomes
> mandatory.
>
> I don't like the idea of people being caught unaware by this..
>
> Can you please give a more detailed description of what happens?
In this case it's the loader. I just upgraded a second laptop and did NOT
replace
the boot block (boot1.efi), but DID populate /boot (and actually a full world),
and
it booted fine,
>
> >
> > Reviewed by: kib
> > MFC after: 2 weeks
> > X-MFC-With: r296419
> >
> > Modified:
> > head/sys/boot/common/load_elf_obj.c
> >
> > Modified: head/sys/boot/common/load_elf_obj.c
> > ==============================================================================
> > --- head/sys/boot/common/load_elf_obj.c Sun Mar 6 14:37:49 2016
> > (r296427)
> > +++ head/sys/boot/common/load_elf_obj.c Sun Mar 6 15:57:43 2016
> > (r296428)
> > @@ -221,6 +221,9 @@ __elfN(obj_loadimage)(struct preloaded_f
> > switch (shdr[i].sh_type) {
> > case SHT_PROGBITS:
> > case SHT_NOBITS:
> > +#if defined(__i386__) || defined(__amd64__)
> > + case SHT_AMD64_UNWIND:
> > +#endif
> > lastaddr = roundup(lastaddr, shdr[i].sh_addralign);
> > shdr[i].sh_addr = (Elf_Addr)lastaddr;
> > lastaddr += shdr[i].sh_size;
> >
> >
>
> _______________________________________________
> svn-src-all@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/svn-src-all
> To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 214-642-9640 E-Mail: l...@lerctr.org
US Mail: 7011 W Parmer Ln, Apt 1115, Austin, TX 78729-6961
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
