linux-kernel - Re: NMI Reported with console

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Message-ID: <ZcqMOKtHsZ9qnxNg@thinkpad2021>
Date: Mon, 12 Feb 2024 16:23:04 -0500
From: "John B. Wyatt IV" <jwyatt@...hat.com>
To: John Ogness <john.ogness@...utronix.de>
Cc: Petr Mladek <pmladek@...e.com>, Clark Williams <williams@...hat.com>,
	jlelli@...hat.com, Derek Barbosa <debarbos@...hat.com>,
	"John B. Wyatt IV" <sageofredondo@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: NMI Reported with console_blast.sh

On Sat, Feb 10, 2024 at 10:33:50PM +0106, John Ogness wrote:
> On 2024-02-09, "John B. Wyatt IV" <jwyatt@...hat.com> wrote:
> >> Could you provide me your kernel config and boot args?
> 
> Thanks for the config. Could you provide me the boot args as well? I am
> trying to understand why early_printk is showing up in your trace.

I forgot to include that, my apologies.

BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.7.0-rt6 root=UUID=6e05c61a-a39c-45f1-acf2-0b0892c0739e ro rootflags=subvol=root console=ttyS0,115200n81 skew_tick=1 tsc=reliable rcupdate.rcu_normal_after_boot=1 isolcpus=managed_irq,domain,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223 intel_pstate=disable nosoftlockup

I talked about the isolcpus options with Juri. Tuned had the realtime profile enabled. Juri suggested testing with the thoughput-performance profile.

Red Hat's conservers are having an issue with the machine I was testing
on. It may take me a while to get back to you with more test results.