Re: [Crash-utility] [PATCH v4 1/3] arm64: more improvement of bt -f
----- Original Message -----
On Wed, Jun 22, 2016 at 01:35:02PM +0900, AKASHI Takahiro wrote:
... [ cut ] ...
> + if (!arm64_on_irq_stack(bt->tc->processor, fp))
Obviously I meant "if (arm64_on_irq_stack(bt->tc->processor,fp))"
> + /*
> + * Very rare corner case:
> + * We have already exited an irq handler,
> + * and switched from IRQ stack to process
> + * stack but fp is not yet restored.
> + * Fp still points to IRQ stack, sigh.
> + * For example,
> + * ret_to_user() after irq_handler in el0_irq
> + */
> + frame->sp = bt->stacktop
> + - sizeof(struct arm64_pt_regs)
> + - 0x10;
Anyhow, this logic seems to still have some bug.
I will try to fix it.
Sorry for any confusion.
-Takahiro AKASHI
No problem -- I'll await v5.
Thanks,
Dave