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SubjectRe: [PATCH] lib/ubsan: default UBSAN_ALIGNMENT to not set
On Fri, 11 Jan 2019 22:01:16 +0300 Andrey Ryabinin <aryabinin@virtuozzo.com> wrote:

>
>
> On 12/17/18 6:03 PM, Anders Roxell wrote:
> > When booting an allmodconfig kernel, there are a lot of false-positives.
> > With a message like this 'UBSAN: Undefined behaviour in...' with a call
> > trace that follows.
> >
> > Reworked so that when building a allmodconfig kernel that turns
> > everything into '=m' or '=y' will turn off UBSAN_ALIGNMENT.
> >
> > Suggested-by: Arnd Bergmann <arnd@arndb.de>
> > Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
> > ---
>
> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
>

Confused. Why does allmodconfig result in UBSAN warnings?


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