From: Michael Ellerman <patch-notifications@ellerman•id.au>
To: Michael Ellerman <mpe@ellerman•id.au>, linuxppc-dev@ozlabs•org
Subject: Re: [PATCH] selftests/powerpc: Add a test of sigreturn vs VDSO
Date: Thu, 26 Mar 2020 23:06:35 +1100 (AEDT) [thread overview]
Message-ID: <48p3cX2lj3z9sRN@ozlabs.org> (raw)
In-Reply-To: <20200304110402.6038-1-mpe@ellerman.id.au>
On Wed, 2020-03-04 at 11:04:02 UTC, Michael Ellerman wrote:
> There's two different paths through the sigreturn code, depending on
> whether the VDSO is mapped or not. We recently discovered a bug in the
> unmapped case, because it's not commonly used these days.
>
> So add a test that sends itself a signal, then moves the VDSO, takes
> another signal and finally unmaps the VDSO before sending itself
> another signal. That tests the standard signal path, the code that
> handles the VDSO being moved, and also the signal path in the case
> where the VDSO is unmapped.
>
> Signed-off-by: Michael Ellerman <mpe@ellerman•id.au>
Applied to powerpc next.
https://git.kernel.org/powerpc/c/a0968a025c04702427a4aee2c618f451a5098cd8
cheers
next prev parent reply other threads:[~2020-03-26 12:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-04 11:04 [PATCH] selftests/powerpc: Add a test of sigreturn vs VDSO Michael Ellerman
2020-03-06 18:25 ` Nathan Lynch
2020-03-06 18:31 ` Nathan Lynch
2020-03-26 12:04 ` Michael Ellerman
2020-03-26 12:06 ` Michael Ellerman [this message]
2021-06-17 9:00 ` Christophe Leroy
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