RE: [PATCH v2] arm/stacktrace: stop unwinding after an invalid address.

[Vaneet Narang]

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Hi Russell,


>__dabt_usr+0x44/0x60
>0xb6748ea4
>^^^^^^^^

>--- a/arch/arm/kernel/stacktrace.c
>+++ b/arch/arm/kernel/stacktrace.c
>@@ -92,6 +92,9 @@ static int save_trace(struct stackframe *frame, void *d)
> 
> 	regs = (struct pt_regs *)frame->sp;
>
>+	if (!__kernel_text_address(regs->ARM_pc))
>+		return 1;
>+
> 	trace->entries[trace->nr_entries++] = regs->ARM_pc;
 
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Any Inputs or Comments on this patch to avoid storing user space entries 
during unwind.
Â
Regards,
Vaneet Narang

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