From: Dave Young <dyoung@redhat.com>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Juergen Gross <jgross@suse.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Tony Luck <tony.luck@intel.com>, Yu Chen <yu.c.chen@intel.com>,
Baoquan He <bhe@redhat.com>,
Kexec Mailing List <kexec@lists.infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Rui Zhang <rui.zhang@intel.com>,
ebiederm@redhat.com, Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: kexec reboot fails with extra wbinvd introduced for AME SME
Date: Thu, 18 Jan 2018 10:57:02 +0800 [thread overview]
Message-ID: <20180118025702.GA2242@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <47fe0d37-93d9-1394-062a-f973a38daa16@linux.intel.com>
On 01/17/18 at 06:53pm, Arjan van de Ven wrote:
> >
> > Does anybody have any other ideas?
>
> wbinvd is thankfully not common, but also not rare (MTRR setup and a bunch of other cases)
> and in some other operating systems it happens even more than on Linux.. it's generally not totally broken like this.
>
> I can only imagine a machine check case where a write back to a bad cell causes some parity error
> or something... but it's odd that no other machine checks are reported?
> (can the user check for this please)
Could you say more about how to check this? My .config disabled
CONFIG_X86_MCE, should this be enabled?
Thanks
Dave
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next prev parent reply other threads:[~2018-01-18 2:57 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-13 2:52 Regression: kexec/kdump boot hangs with x86/vector commits Dave Young
2017-12-13 15:57 ` Yu Chen
2017-12-14 9:24 ` Dave Young
2018-01-04 3:15 ` Dave Young
2018-01-17 7:22 ` kexec reboot fails with extra wbinvd introduced for AME SME Dave Young
2018-01-17 15:06 ` Tom Lendacky
2018-01-18 1:50 ` Dave Young
2018-01-17 19:42 ` Linus Torvalds
2018-01-17 20:01 ` Tom Lendacky
2018-01-17 22:53 ` Tom Lendacky
2018-01-17 20:10 ` Linus Torvalds
2018-01-18 1:47 ` Dave Young
2018-01-18 2:14 ` Linus Torvalds
2018-01-18 2:29 ` Dave Young
2018-01-18 5:14 ` Tom Lendacky
2018-01-18 2:47 ` Dave Young
2018-01-18 2:56 ` Linus Torvalds
2018-01-18 2:53 ` Arjan van de Ven
2018-01-18 2:57 ` Dave Young [this message]
2018-01-18 3:00 ` Linus Torvalds
2018-01-18 3:04 ` Dave Young
2018-01-18 3:31 ` Dave Young
2018-01-18 3:00 ` Arjan van de Ven
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