linux-kernel - Re: [PATCH] MIPS: Remove noreturn attribute for die()

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Date:   Tue, 8 Aug 2023 15:54:41 +0100 (BST)
From:   "Maciej W. Rozycki" <macro@...am.me.uk>
To:     Tiezhu Yang <yangtiezhu@...ngson.cn>
cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH] MIPS: Remove noreturn attribute for die()

On Tue, 1 Aug 2023, Tiezhu Yang wrote:

> If notify_die() returns NOTIFY_STOP, there is no need to call
> make_task_dead(), we can remove noreturn attribute for die(),
> this is similar with arm64, riscv and csky.

 So you want to keep a task alive that has caused a kernel oops in the 
process context in this case, right?  What purpose would it be for and 
what condition causes `notify_die' to return NOTIFY_STOP?  IOW why is 
there no need to call `make_task_dead' in this case?

  Maciej