We already solved this (unless it's come back).
It was fixed by this commit:
https://sourceforge.net/p/tboot/code/ci/356ad4b1d363c70d7b25907f812bd411a28eecd3/
<https://sourceforge.net/p/tboot/code/ci/356ad4b1d363c70d7b25907f812bd411a28eecd3/>
However, this was after 1.9.4 was tagged and distributions probably didn't
patch their versions...
I recommend you use latest trunk, packages and tagged versions are quite
outdated and possibly even dangerous to rely on.
Jan
> On 3 Nov 2016, at 20:10, Brian E Luckau <bluc...@sgi.com> wrote:
>
> Hi,
>
> We have had issues with tboot 1.8.x and 1.9.4, and seeing garbage
> characters on the cmdline at the end. We've seen this on multiple
> different hardware types, different OSes(RHEL 7.3, Centos 7.2,
> SLES12sp2). We are using PXE boot in all the cases that I'm aware of.
>
> It looks like we are passing tboot a good command line and then tboot
> passes control to the kernel, at which time the command line has the
> extra characters on it.
>
> TBOOT: verifying module "
> (tftp)/boot/sles12sp2/vmlinuz-4.4.21-69-default MAC=[snipped]...
> [...] crashkernel=256M"...
> TBOOT: OK : d6 ce 7b 29 41 a3 3a d9 3a b8 1a 69 55 88 9b 66 49 4c 80 66
> TBOOT: verifying module "
> (tftp)/boot/sles12sp2/initrd-4.4.21-69-default"...
>
> Then it transfers control to the kernel. At this point the kernel shows that
> the
> cmdline it got is corrupted.
>
> [ 0.000000] Linux version 4.4.21-69-default (geeko@buildhost) (gcc version
> 4.8.5 (SUSE Linux) ) #1 SMP Tue Oct 25 10:58:20 UTC 2016 (9464f67)
> [ 0.000000] Command line: (tftp)/boot/sles12sp2/vmlinuz-4.4.21-69-default
> [snipped ... ] crashkernel=256M��t�� ufh
>
> I'm hoping to find there is a patch, etc. for tboot to rectify this.
>
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