From: Tom Lendacky <thomas.lendacky@amd.com>
To: "Thomas Gleixner" <tglx@linutronix.de>,
"Laurențiu Nicola" <lnicola@dend.ro>
Cc: mingo@kernel.org, bp@alien8.de, x86@kernel.org,
trivial@kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/irq: Lower unhandled irq error severity
Date: Tue, 1 Dec 2020 08:36:06 -0600 [thread overview]
Message-ID: <dd42cc78-bef0-907c-ffa5-e8b8f29ef363@amd.com> (raw)
In-Reply-To: <87tut6h10u.fsf@nanos.tec.linutronix.de>
On 11/30/20 5:34 PM, Thomas Gleixner wrote:
> On Mon, Nov 30 2020 at 19:22, Laurențiu Nicola wrote:
>> On Mon, Nov 30, 2020, at 18:56, Thomas Gleixner wrote:
>>>> That's right, sorry. It still boots, but it's no longer "quiet",
>>>> that's what I meant.
>>>
>>> Right, but surpressing that is not a solution.
>>
>> I'm just downgrading it from "emergency" to "error". It will still be
>> displayed for most users snd anyone looking in dmesg. But I'm unlikely
>> to convince my motherboard manufacturer to fix this in the BIOS, and
>> the errors are basically unactionable and uninformative (unlike say
>> "can't set up page mappings" or "your CPU might be on fire" which
>> would really imply a crash soon).
>
> The point is that for some cases this can result in a non working
> machine which just hangs and if it's below the usual loglevel cutoff,
> then it's not visible, which is more annoying than a non-quiet boot if
> you're affected.
>
> We are looking into a way to mitigate that AMD wreckage, but so far we
> don't even know where exactly this comes from. The reason why we are
> pretty sure that it is a BIOS/Firmware issue is that some people
> reported it to be gone after a BIOS update and quite some machines do
> not have this issue at all.
Thomas has reported this to me previously and I have reported it to our
BIOS team. That previously reported problem has been fixed in BIOS, but
I'm not sure at what AGESA level the fix will be rolled out.
@Laurențiu, what is the exact model of the processor you are running?
Thanks,
Tom
>
> Just for completeness sake. Can you provide the line in /proc/interrupts
> for irq 7 on that machine?
>
> Thanks,
>
> tglx
>
next prev parent reply other threads:[~2020-12-01 14:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201126074734.12664-1-lnicola@dend.ro>
2020-11-27 0:12 ` [PATCH] x86/irq: Lower unhandled irq error severity Thomas Gleixner
2020-11-27 8:03 ` Laurențiu Nicola
2020-11-30 16:56 ` Thomas Gleixner
2020-11-30 17:22 ` Laurențiu Nicola
2020-11-30 23:34 ` Thomas Gleixner
2020-12-01 8:18 ` Laurențiu Nicola
2020-12-01 10:38 ` Thomas Gleixner
2020-12-01 10:41 ` Laurențiu Nicola
2020-12-01 14:36 ` Tom Lendacky [this message]
2020-12-01 14:44 ` Laurențiu Nicola
2020-12-01 17:05 ` Tom Lendacky
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