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Date:   Fri, 1 May 2020 17:29:19 -0400
From:   Qian Cai <>
To:     Rafael Aquini <>
Cc:     Linux-MM <>,,,,,,
Subject: Re: [PATCH] mm: slub: add panic_on_error to the debug facilities

> On May 1, 2020, at 5:15 PM, Rafael Aquini <> wrote:
> Sometimes it is desirable to override SLUB's debug facilities
> default behavior upon stumbling on a cache or object error
> and just stop the execution in order to grab a coredump, at
> the error-spotting time, instead of trying to fix the issue
> and report in an attempt to keep the system rolling.
> This patch introduces a new debug flag SLAB_PANIC_ON_ERROR,
> along with its related SLUB-machinery, in order to extend
> current slub_debug facilites and provide the aforementioned
> behavior override.

Instead of adding those things everywhere. How about adding something like panic_on_taint? Then, you could write specific taint flags you are interested in to that file because slab_bug() will taint it TAINT_BAD_PAGE.

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