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Date: Tue, 4 Oct 2022 18:47:32 +0900
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Subject: Re: [PATCH 0/2] RISC-V: Fix buffer overflow after long instruction
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To: Jan Beulich <jbeulich@suse.com>, Binutils <binutils@sourceware.org>,
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From: Tsukasa OI <research_trasio@irq.a4lg.com>
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On 2022/10/04 18:44, Jan Beulich wrote:
> On 04.10.2022 11:26, Tsukasa OI wrote:
>> On 2022/10/04 18:07, Jan Beulich wrote:
>>> On 04.10.2022 10:59, Tsukasa OI wrote:
>>>> After commit bb996692bd9 "RISC-V/gas: allow generating up to 176-bit
>>>> instructions with .insn", I started to see some crashes while running
>>>> "make check-gas".
>>>
>>> Hmm, I'm puzzled why things worked correctly for me. The extra size needed
>>> is quite significant, so chances should be rather slim for things to work
>>> correctly.
>>
>> I don't see this extra stack size as a problem so far.
> 
> I guess my wording was misleading: I would have expected things for me to
> be broken as well, simply because the amount of overrun would have
> clobbered multiple stack slots (the more that some of my testing was on a
> 32-bit host).

Ah, that would make sense.

Thanks,
Tsukasa

> 
> Jan
>