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

Conor Dooley conor.dooley at microchip.com
Tue Feb 27 05:30:28 PST 2024


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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