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Fri, 7 Mar 2025 12:10:41 +0000 Received: from CO6PR10MB5396.namprd10.prod.outlook.com ([fe80::4487:ae4:5f2d:d555]) by CO6PR10MB5396.namprd10.prod.outlook.com ([fe80::4487:ae4:5f2d:d555%6]) with mapi id 15.20.8466.028; Fri, 7 Mar 2025 12:10:41 +0000 Message-ID: <037da68f-791a-4f04-a39c-0fde3dac5704@oracle.com> Date: Fri, 7 Mar 2025 13:10:33 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 7/8] PCI/AER: Add AER sysfs attributes for log ratelimits To: Jon Pan-Doh Cc: Bjorn Helgaas , linux-pci@vger.kernel.org, Martin Petersen , Ben Fuller , Drew Walton , Anil Agrawal , Tony Luck , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , Sathyanarayanan Kuppuswamy , Lukas Wunner , Jonathan Cameron References: <20250214023543.992372-1-pandoh@google.com> <20250214023543.992372-8-pandoh@google.com> <319344c5-02bb-4257-92a5-424ce72654f9@oracle.com> <49bfa13d-756e-44e6-a14d-0e4940260bcd@oracle.com> Content-Language: en-US From: Karolina Stolarek Organization: Oracle Corporation In-Reply-To: Content-Type: text/plain; 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We may want to see no logs >> of errors but still have them recorded in rasdaemon, for example. > > Understood. So the sysfs toggles could be something like: > > aer/ratelimit_log_enable > aer/ratelimit_irq_enable (with default = off) > > This assumes that IRQ ratelimiting part is able to be merged. Sounds good to me > FYI, the current implementation ratelimits for both logs and trace > events, but increments AER counters. If there's a scenario where you'd > want no logs but have trace events sent, then we may need another > ratelimit and/or roll that into IRQ ratelimiting (to avoid trace > buffer/userspace agent getting inundated with events). Granted, there > is probably a higher tolerance for spam there than in console logs. Right, I see what you mean. I think we would like to still trace them, at least that's what I got from the conversation I had with Jonathan[1]. It would be good to agree on the final solution here. All the best, Karolina -------------------------------------------------------------------- [1] - https://lore.kernel.org/linux-pci/20241216104424.00000fab@huawei.com/ > > If that's desirable, maybe it could be a follow-up as well? I figure > this series is at least a good first step to handle any spam (vs. > status quo). > > Thanks, > Jon