Bug#1020831: linux-signed-arm64: iouring tmpfs pwrite returns 125 error sparaticly
Package: linux-signed-arm64
Dear Maintainer,
This is derived from https://jira.mariadb.org/browse/MDEV-29610
MariaDB-10.6+ uses liburing as its default async IO layer. In our CI
infrastructure there are a considerable amount of encryption.innodb*
test errors where uring returns the error IO Error: 125 during async
write of 49152 bytes, for file 11, returned 0. In all cases this is
a pwrite uring call.
We are using various distro containers on the Debian kernel host and
this is a common error.
An example error is:
https://buildbot.mariadb.org/#/builders/482/builds/1493
The encryption.innodb-checksum-algorithm error where the complete
mariadb log is https://ci.mariadb.org/28662/logs/aarch64-rhel-9/mysqld.1.err.6
In this case the kernel versions is printed just before the next
test as:
* 5.10.0-17-cloud-arm64 (debian-kernel@lists.debian.org) (gcc-10 (Debi
A KVM build with a bullseye is:
https://buildbot.askmonty.org/buildbot/builders/kvm-deb-bullseye-aarch64/builds/111
Its kernel version is: 5.10.0-17-arm64 (debian-kernel@lists.debian.org)
Though largely aarch failures have been observed there are ppc64le
examples like:
* https://buildbot.mariadb.org/#/builders/478/builds/1676 error log
https://ci.mariadb.org/28662/logs/ppc64le-rhel-9/mysqld.1.err.11
Linux version 5.10.0-18-powerpc64le (debian-kernel@lists.debian.org)
The one amd64 case is in:
https://ci.mariadb.org/28153/logs/amd64-debian-sid/mysqld.1.err.14
The kernel (though not in the logs) was 5.10.0-13-amd64
(debian-kernel@lists.debian.org)
Our CI works across quite a number of host kernels and the Debian 5.10
is the only one showing these errors. Even newer kernels like
5.18.0-0.deb11 / Debian 5.18.16-1~bpo11+1 (2022-08-12)
isn't showing errors.
So its looking like a missing upstream iouring patch missing.
To reproduce:
(mariadb-10.6+ test)
curl -sS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | bash
apt-get install -y mariadb-test patch
cd /usr/share/mysql/mysql-test/
mkdir var
chown mysql: var
as mysql user:
./mtr --mem --repeat=1000 --parallel=8
encryption.innodb-compressed-blob{,,,,,,,,,,,,,}
-- System Information:
Debian Release: 11.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux version 5.10.0-17-arm64
Kernel taint flags: TAINT_WARN
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: unable to detect
Reply to: