Re: [PATCH 1/4] riscv: avoid kernel hangs when trapped in BUG()

From: Paul Walmsley
Date: Fri Oct 04 2019 - 14:26:19 EST


On Mon, 23 Sep 2019, Vincent Chen wrote:

> When the CONFIG_GENERIC_BUG is disabled by disabling CONFIG_BUG, if a
> kernel thread is trapped by BUG(), the whole system will be in the
> loop that infinitely handles the ebreak exception instead of entering the
> die function. To fix this problem, the do_trap_break() will always call
> the die() to deal with the break exception as the type of break is
> BUG_TRAP_TYPE_BUG.
>
> Signed-off-by: Vincent Chen <vincent.chen@xxxxxxxxxx>

Thanks, queued for v5.4-rc.


- Paul