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From: "Luck, Tony" <tony.luck@intel.com>
To: David Hildenbrand <david@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	Yazen Ghannam <yazen.ghannam@amd.com>,
	Miaohe Lin <linmiaohe@huawei.com>,
	Naoya Horiguchi <naoya.horiguchi@nec.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: Machine check recovery broken in v6.9-rc1
Date: Fri, 5 Apr 2024 15:05:17 +0000	[thread overview]
Message-ID: <SJ1PR11MB6083AB3E55B7DE0D3FBE185EFC032@SJ1PR11MB6083.namprd11.prod.outlook.com> (raw)
In-Reply-To: <1e943439-6044-4aa4-8c41-747e9e4dca27@redhat.com>

>> kernel BUG at include/linux/swapops.h:119
>> 
>> 117 static inline unsigned long swp_offset_pfn(swp_entry_t entry)
>> 118 {
>> 119         VM_BUG_ON(!is_pfn_swap_entry(entry));
>> 120         return swp_offset(entry) & SWP_PFN_MASK;
>> 121 }
>> 
>
> Do you have the full backtrace?

It's very garbled because multiple CPUs seem to be logging to the console together.

I've also got some more details.

1) Problems with recovery go back further than v6.8. Still looking to pin down where it started.
   v6.0 seems good (can run hundreds of injections + consumptions).
2) It's connected to a BIOS setting that enables APEI logging. If I disable that, current
   kernels don't have problems. v6.0 runs OK with this setting on or off.

I'm bisecting to find where the APEI issue begins.

-Tony

  reply	other threads:[~2024-04-05 15:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-04 22:05 Tony Luck
2024-04-04 23:39 ` Tony Luck
2024-04-05  7:19 ` David Hildenbrand
2024-04-05 15:05   ` Luck, Tony [this message]
2024-04-05 23:58     ` Tony Luck
2024-04-06  2:18       ` Oscar Salvador
2024-04-06  3:54         ` Oscar Salvador
2024-04-06  4:13           ` Oscar Salvador
2024-04-07  0:08             ` Luck, Tony
2024-04-07  3:59               ` Miaohe Lin
2024-04-07  4:51               ` Oscar Salvador

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