On Tue, 17 Oct 2023 23:15:27 +1100, Michael Ellerman wrote:
> Sachin reported a warning when running the inject-ra-err selftest:
>
> # selftests: powerpc/mce: inject-ra-err
> Disabling lock debugging due to kernel taint
> MCE: CPU19: machine check (Severe) Real address Load/Store
> (foreign/control memory) [Not recovered]
> MCE: CPU19: PID: 5254 Comm: inject-ra-err NIP: [0000000010000e48]
> MCE: CPU19: Initiator CPU
> MCE: CPU19: Unknown
> ------------[ cut here ]------------
> WARNING: CPU: 19 PID: 5254 at arch/powerpc/mm/book3s64/radix_tlb.c:1221
> radix__tlb_flush+0x160/0x180
> CPU: 19 PID: 5254 Comm: inject-ra-err Kdump: loaded Tainted: G M E
> 6.6.0-rc3-00055-g9ed22ae6be81 #4
> Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006
> of:IBM,FW1030.20 (NH1030_058) hv:phyp pSeries
> ...
> NIP radix__tlb_flush+0x160/0x180
> LR radix__tlb_flush+0x104/0x180
> Call Trace:
> radix__tlb_flush+0xf4/0x180 (unreliable)
> tlb_finish_mmu+0x15c/0x1e0
> exit_mmap+0x1a0/0x510
> __mmput+0x60/0x1e0
> exit_mm+0xdc/0x170
> do_exit+0x2bc/0x5a0
> do_group_exit+0x4c/0xc0
> sys_exit_group+0x28/0x30
> system_call_exception+0x138/0x330
> system_call_vectored_common+0x15c/0x2ec
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/64s/radix: Don't warn on copros in radix__tlb_flush()
https://git.kernel.org/powerpc/c/20045f0155ab79f8beb840022ea86bff46167f79
cheers
