linux-kernel - Re: perf regression after "genirq/affinity: Handle affinity setting on inactive interrupts correctly"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <51480c84-e9c2-6508-4b3d-a63f93264587@nbd.name>
Date:   Fri, 21 Aug 2020 19:49:54 +0200
From:   Felix Fietkau <nbd@....name>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: perf regression after "genirq/affinity: Handle affinity setting
 on inactive interrupts correctly"

On 2020-08-21 19:38, Felix Fietkau wrote:
> Hi Thomas,
> 
> after updating my MT7622 ARM64 device from Linux 5.4.52 to 5.4.59, perf
> stopped working. Whenever I started it, I got an IRQ storm on the second
> arm-pmu IRQ. After some digging, I figured out that reverting commit
> 9f8d3d2f79ba189ecc122d214d32396e5737963b ("genirq/affinity: Handle
> affinity setting on inactive interrupts correctly") made it work again.
Never mind, I just found your fix in 5.4.60 and it works for me.
Sorry for the noise :)

- Felix