Received-SPF: pass (google.com: domain of linux-kernel+bounces-83320-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
Date: Tue, 27 Feb 2024 13:30:28 +0000
From: Conor Dooley <conor.dooley@microchip.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
CC: Nathan Chancellor <nathan@kernel.org>, Conor Dooley <conor@kernel.org>,
	Matthew Maurer <mmaurer@google.com>, <linux-riscv@lists.infradead.org>,
	Miguel Ojeda <ojeda@kernel.org>, Alex Gaynor <alex.gaynor@gmail.com>, Wedson
 Almeida Filho <wedsonaf@gmail.com>, Boqun Feng <boqun.feng@gmail.com>, Gary
 Guo <gary@garyguo.net>, =?iso-8859-1?Q?Bj=F6rn?= Roy Baron
	<bjorn3_gh@protonmail.com>, Jonathan Corbet <corbet@lwn.net>, Paul Walmsley
	<paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Nick
 Desaulniers <ndesaulniers@google.com>, Tom Rix <trix@redhat.com>,
	<rust-for-linux@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <llvm@lists.linux.dev>,
	<stable@vger.kernel.org>, Sami Tolvanen <samitolvanen@google.com>, Ramon de C
 Valle <rcvalle@google.com>
Subject: Re: [PATCH v2 1/3] rust: make mutually exclusive with CFI_CLANG
Message-ID: <20240227-nutrient-uncorrupt-202767671f78@wendy>
References: <20240223-leverage-walmart-5424542cd8bd@spud>
 <20240223-perjury-preshow-fc2cf73d552e@spud>
 <CANiq72=mCnm0mKOw5K44PmZ+jF=67jxEEkcXP-E0O8CaUrps=w@mail.gmail.com>
 <20240227-uncertain-amaze-6197e627ad95@wendy>
 <CANiq72=geBobqM0Dc2yv=NjAc3MWXhOrDHfuJ84TgQ+XVxBo0w@mail.gmail.com>
 <20240227-unwind-canteen-3da9b07af10c@wendy>
Precedence: bulk
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;
	protocol="application/pgp-signature"; boundary="r5yJmoa5fGQ0bLaA"
Content-Disposition: inline
In-Reply-To: <20240227-unwind-canteen-3da9b07af10c@wendy>

--r5yJmoa5fGQ0bLaA
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Tue, Feb 27, 2024 at 01:02:17PM +0000, Conor Dooley wrote:

> I'll give testing another try.

Yah, it is (as expected) broken on arm64 too:

 CFI failure at do_one_initcall+0xec/0x26c (target: __rust_minimal_init+0x0=
/0x64; expected type: 0x36b1c5a6)
 Internal error: Oops - CFI: 00000000f2008233 [#1] PREEMPT SMP
 Modules linked in:
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc3-00002-g724a75ac9542 #10
 Hardware name: linux,dummy-virt (DT)
 pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=3D--)
 pc : do_one_initcall+0xec/0x26c
 lr : do_initcall_level+0x8c/0xb0
 sp : ffff80008000bab0
 x29: ffff80008000bda0 x28: 0000000000000000 x27: 0000000000000000
 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
 x23: 0000000000000000 x22: 0000000000000000 x21: ffff18d941cb0000
 x20: ffffb8f6d6d9f000 x19: ffffb8f6d63e8b18 x18: 0000000000000002
 x17: 0000000036b1c5a6 x16: 00000000d65f03c0 x15: 0000000000000000
 x14: ffff18d9420280b1 x13: 0000000065dde380 x12: 0000000000000017
 x11: 0000000000000000 x10: 0000000000000000 x9 : d4db8c0058e7e300
 x8 : 0000000000000000 x7 : 0000000001f4c18b x6 : 0000000001f4c18b
 x5 : ffffb8f6d6d300a0 x4 : ffff80008000ba78 x3 : ffff18d942019860
 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffb8f6d63e8b18
 Call trace:
  do_one_initcall+0xec/0x26c
  do_initcall_level+0x8c/0xb0
  do_initcalls+0x54/0x94
  do_basic_setup+0x68/0x78
  kernel_init_freeable+0x100/0x16c
  kernel_init+0x20/0x1a0
  ret_from_fork+0x10/0x20
 Code: 7298b4d1 72a6d631 6b11021f 54000040 (d4304660)=20
 ---[ end trace 0000000000000000 ]---
 note: swapper/0[1] exited with irqs disabled
 note: swapper/0[1] exited with preempt_count 1
 Kernel panic - not syncing: Attempted to kill init! exitcode=3D0x0000000b
 Kernel Offset: 0x38f655800000 from 0xffff800080000000
 PHYS_OFFSET: 0xffffe72700000000
 CPU features: 0x0,88000203,3c020000,0100421b
 Memory Limit: none
 ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=3D0x=
0000000b ]---

Cheers,
Conor.

--r5yJmoa5fGQ0bLaA
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZd3j9AAKCRB4tDGHoIJi
0u2PAQC5/4jfWMdylFg+y63pffgtxRDgGSmDgaHdyDygKV9j9QD+PNFWt0vl/a+D
X2nh2w6BJGQiRtf9I1HY/qbOMamdlQE=
=4HMF
-----END PGP SIGNATURE-----

--r5yJmoa5fGQ0bLaA--