From: Gustavo Romero <gromero@linux.vnet.ibm.com>
To: Cyril Bur <cyrilbur@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org, mikey@neuling.org
Subject: Re: [PATCH 3/3] powerpc/tm: P9 disable transactionally suspended sigcontexts
Date: Fri, 6 Oct 2017 08:16:02 -0300 [thread overview]
Message-ID: <59D765F2.3090601@linux.vnet.ibm.com> (raw)
In-Reply-To: <20171006074643.25269-3-cyrilbur@gmail.com>
Hi Cyril,
On 06-10-2017 04:46, Cyril Bur wrote:
> From: Michael Neuling <mikey@neuling.org>
>
> Unfortunately userspace can construct a sigcontext which enables
> suspend. Thus userspace can force Linux into a path where trechkpt is
> executed.
>
> This patch blocks this from happening on POWER9 but sanity checking
> sigcontexts passed in.
I think "but" should say "by" as pointed out by Joel and acked by Mikey
previously.
Regards,
Gustavo
prev parent reply other threads:[~2017-10-06 11:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-06 7:46 [PATCH 1/3] powerpc/tm: Add commandline option to disable hardware transactional memory Cyril Bur
2017-10-06 7:46 ` [PATCH 2/3] powerpc/tm: P9 disabled suspend mode workaround Cyril Bur
2017-10-06 8:10 ` Benjamin Herrenschmidt
2017-10-06 10:29 ` Michael Ellerman
2017-10-06 11:22 ` Gustavo Romero
2017-10-06 7:46 ` [PATCH 3/3] powerpc/tm: P9 disable transactionally suspended sigcontexts Cyril Bur
2017-10-06 8:11 ` Benjamin Herrenschmidt
2017-10-06 11:16 ` Gustavo Romero [this message]
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