Re: [PATCH v2 1/3] rust: make mutually exclusive with CFI_CLANG

Conor Dooley
2024-02-27T13:31:43Z

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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=--)
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)
---[ 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=0x0000000b
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=0x0000000b ]---

Cheers,
Conor.

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