Re: [PATCH] kernel: add panic_on_taint

From: Qian Cai
Date: Wed May 06 2020 - 22:50:24 EST




> On May 6, 2020, at 6:28 PM, Rafael Aquini <aquini@xxxxxxxxxx> wrote:
>
> Analogously to the introduction of panic_on_warn, this patch
> introduces a kernel option named panic_on_taint in order to
> provide a simple and generic way to stop execution and catch
> a coredump when the kernel gets tainted by any given taint flag.
>
> This is useful for debugging sessions as it avoids rebuilding
> the kernel to explicitly add calls to panic() or BUG() into
> code sites that introduce the taint flags of interest.
> Another, perhaps less frequent, use for this option would be
> as a mean for assuring a security policy (in paranoid mode)
> case where no single taint is allowed for the running system.

Andrew, you can drop the patch below from -mm now because that one is now obsolete,

mm-slub-add-panic_on_error-to-the-debug-facilities.patch