Messages in this thread | | | From | "Van De Ven, Arjan" <> | Subject | RE: [RH72 Spectre] ibpb_enabled = 1 leads to hard LOCKUP under x86_64 host machine | Date | Sat, 20 Jan 2018 13:56:08 +0000 |
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well first of all don't use IBRS, use retpoline
and if Andrea says this was a known issue in their code then I think that closes the issue.
> -----Original Message----- > From: David Woodhouse [mailto:dwmw2@infradead.org] > Sent: Saturday, January 20, 2018 1:03 AM > To: Hou Tao <houtao1@huawei.com>; aarcange@redhat.com; linux- > kernel@vger.kernel.org; Van De Ven, Arjan <arjan.van.de.ven@intel.com> > Cc: mingo@redhat.com; Thomas Gleixner <tglx@linutronix.de>; > ak@linux.intel.com; dave.hansen@linux.intel.com; peterz@infradead.org; > qiuxishi@huawei.com; wangkefeng.wang@huawei.com > Subject: Re: [RH72 Spectre] ibpb_enabled = 1 leads to hard LOCKUP under > x86_64 host machine > > On Sat, 2018-01-20 at 17:00 +0800, Hou Tao wrote: > > > > So has anyone encountered a similar problem before, and any suggestions > > and directions for the hard LOCKUP problems ? > > Arjan, what is the Intel recommendation here?
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