Path: csiph.com!newsfeed.xs4all.nl!newsfeed8.news.xs4all.nl!bofh.it!news.nic.it!robomod From: Diederik de Haas Newsgroups: linux.debian.bugs.dist,linux.debian.kernel Subject: Bug#996951: linux-image-5.14.0-3-amd64: iouring looses requests Date: Thu, 21 Oct 2021 13:20:01 +0200 Message-ID: References: X-Original-To: Daniel Black , 996951@bugs.debian.org X-Mailbox-Line: From debian-bugs-dist-request@lists.debian.org Thu Oct 21 11:15:13 2021 Old-Return-Path: X-Spam-Flag: NO X-Spam-Score: -3.951 Reply-To: Diederik de Haas , 996951@bugs.debian.org Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: Debian Kernel Team X-Debian-Pr-Message: followup 996951 X-Debian-Pr-Package: src:linux X-Debian-Pr-Keywords: moreinfo X-Debian-Pr-Source: linux Organization: Connecting Knowledge MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3511197.F4Bdxt04YC"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-Debian-Message: from BTS X-Mailing-List: archive/latest/1685301 List-ID: List-URL: Approved: robomod@news.nic.it Lines: 52 Sender: robomod@news.nic.it X-Original-Cc: Salvatore Bonaccorso X-Original-Date: Thu, 21 Oct 2021 13:09:50 +0200 X-Original-Message-ID: <16189295.VhHGh28klM@bagend> X-Original-References: <163480908050.9054.12708969549092037262.reportbug@impish> <163480908050.9054.12708969549092037262.reportbug@impish> Xref: csiph.com linux.debian.bugs.dist:1077114 linux.debian.kernel:73488 --nextPart3511197.F4Bdxt04YC Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii"; protected-headers="v1" From: Diederik de Haas To: Daniel Black , 996951@bugs.debian.org Cc: Salvatore Bonaccorso Subject: Re: Bug#996951: linux-image-5.14.0-3-amd64: iouring looses requests Date: Thu, 21 Oct 2021 13:09:50 +0200 Message-ID: <16189295.VhHGh28klM@bagend> Organization: Connecting Knowledge In-Reply-To: References: <163480908050.9054.12708969549092037262.reportbug@impish> On Thursday, 21 October 2021 12:41:34 CEST Salvatore Bonaccorso wrote: > On Thu, Oct 21, 2021 at 09:38:00AM +0000, Daniel Black wrote: > > Package: src:linux > > Version: 5.14.12-1 > > The good news is I've validated that the linux mainline 5.14.14 build > > from https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14.14/ has > > actually fixed this problem. > > Where you able to isolate the upstream change landed upstream which > fixes the issue? There has been 1 change in fs/io_uring.c that is part of 5.14.14 (and 5.14.13), but not 5.14.12 and that is this commit: e798dcd960a3f0d40302a1bbf7f755879195a163 "io_uring: kill fasync" Possibly the simplest way to verify whether it's indeed that commit that fixes the issue is to apply the patch to Debian's 5.14.12 kernel. Instructions here (also follow 4.2.1): https://kernel-team.pages.debian.net/kernel-handbook/ch-common-tasks.html#s4.2.2 This would narrow it down to this specific commit and would also rule out differences in Ubuntu's kernel config and Debian's. Cheers, Diederik --nextPart3511197.F4Bdxt04YC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQT1sUPBYsyGmi4usy/XblvOeH7bbgUCYXFKfgAKCRDXblvOeH7b bh3VAP9gHFP0cxhEk/Qzo4x1JOa8z/b6cv58eznwO9eIHKQGlQEAgIzmBDkgIsK2 BFQu1HuH67K1INuZh4e0cF/S7uK2mQk= =l6AV -----END PGP SIGNATURE----- --nextPart3511197.F4Bdxt04YC--