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List:       linux-serial
Subject:    Re: [PATCH v2] serial: kgdboc: Fix NMI-safety problems from keyboard reset code
From:       Daniel Thompson <daniel.thompson () linaro ! org>
Date:       2024-04-26 17:24:35
Message-ID: 171415227582.138568.453198683698011375.b4-ty () linaro ! org
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On Wed, 24 Apr 2024 15:21:41 +0100, Daniel Thompson wrote:
> Currently, when kdb is compiled with keyboard support, then we will use
> schedule_work() to provoke reset of the keyboard status.  Unfortunately
> schedule_work() gets called from the kgdboc post-debug-exception
> handler.  That risks deadlock since schedule_work() is not NMI-safe and,
> even on platforms where the NMI is not directly used for debugging, the
> debug trap can have NMI-like behaviour depending on where breakpoints
> are placed.
> 
> [...]

Applied, thanks!

[1/1] serial: kgdboc: Fix NMI-safety problems from keyboard reset code
      commit: b2aba15ad6f908d1a620fd97f6af5620c3639742

Best regards,
-- 
Daniel Thompson <daniel.thompson@linaro.org>


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