Re: [PATCH v2 04/93] tcg: Manage splitwx in tc_ptr_to_region_tree by hand

[Richard Henderson]

On 2/4/21 5:01 AM, Alex Bennée wrote:
> 
> Richard Henderson <richard.henderson@linaro.org> writes:
> 
>> The use in tcg_tb_lookup is given a random pc that comes from the pc
>> of a signal handler.  Do not assert that the pointer is already within
>> the code gen buffer at all, much less the writable mirror of it.
> 
> Surely we are asserting that - or at least you can find a rt entry for
> the pointer passed (which we always expect to work)?

What?  No.  The pointer could be anything at all, depending on any other bug
within qemu.


r~