linux-kernel - Re: Fwd: RCU stalls with wireguard over bonding over igb on Linux 6.3.0+

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Message-ID: <ZKIkevSrMJISHDig@zx2c4.com>
Date:   Mon, 3 Jul 2023 03:29:30 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     Bagas Sanjaya <bagasdotme@...il.com>,
        Eric DeVolder <eric.devolder@...cle.com>,
        "Borislav Petkov (AMD)" <bp@...en8.de>,
        David R <david@...olicited.net>,
        Boris Ostrovsky <boris.ovstrosky@...cle.com>,
        Miguel Luis <miguel.luis@...cle.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Jay Vosburgh <j.vosburgh@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux RCU <rcu@...r.kernel.org>,
        Wireguard Mailing List <wireguard@...ts.zx2c4.com>,
        Linux Networking <netdev@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Manuel 'satmd' Leiner <manuel.leiner@....de>
Subject: Re: Fwd: RCU stalls with wireguard over bonding over igb on Linux
 6.3.0+

On Sun, Jul 02, 2023 at 03:46:38PM +0200, Jason A. Donenfeld wrote:
> I've got an overdue patch that I still need to submit to netdev, which
> I suspect might actually fix this.
> 
> Can you let me know if
> https://git.zx2c4.com/wireguard-linux/patch/?id=54d5e4329efe0d1dba8b4a58720d29493926bed0
> solves the problem?

satmd, the original reporter, confirmed over on the Gentoo bug report -
https://bugs.gentoo.org/909066 - that this patch fixes the issue.

This patch has been sent into netdev and will presumably hit the various
trees and stable in due time.

Jason