linux-kernel - Re: [PATCH v4 8/8] LoongArch: Add ORC stack unwinder support

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Message-ID: <4a516dcf-aac6-48c9-9082-ac812f313edc@loongson.cn>
Date:   Fri, 27 Oct 2023 17:25:33 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
        loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH v4 8/8] LoongArch: Add ORC stack unwinder support



On 10/27/2023 03:02 PM, Huacai Chen wrote:
> v3 works in most cases, v4 cannot work completely (stop at show_stack), why?

There are no obvious differences of this patch between v3 and v4.

> [   61.642993] Call Trace:
> [   61.642995] [<9000000002ad3808>] show_stack+0x40/0x17c

I can not reproduce the above issue with this patch unless remove
the option "-falign-functions" in arch/loongarch/Makefile, please
make sure the option "-falign-functions" is in your test code.

Thanks,
Tiezhu