Package: linux Version: 6.1.0 Hi!
I noticed that the autopkgtests on Debian on armhf and armel that run the mariadb-test-run have been failing since the Linux kernel was updated from 5.10.0 to 6.1.0. The failure is due to a Perl module not being able to get from /proc/cpu the number of processors: Last passing one: 2023-04-28 https://ci.debian.net/data/autopkgtest/unstable/armel/m/mariadb/33218554/log.gz kernel: Linux 5.10.0-21-arm64 #1 SMP Debian 5.10.162-1 (2023-01-21) perl 5.36.0-7 libdbi-perl armel 1.643-4 libconfig-inifiles-perl all 3.000003-2 First failing one: 2023-05-05 https://ci.debian.net/data/autopkgtest/unstable/armel/m/mariadb/33379866/log.gz kernel: Linux 6.1.0-7-arm64 #1 SMP Debian 6.1.20-2 (2023-04-08) perl 5.36.0-7 libdbi-perl armhf 1.643-4 libconfig-inifiles-perl all 3.000003-2 Error: starting mysql-test-tun.pl... Logging: ./mysql-test-run.pl --force --testcase-timeout=120 --suite-timeout=540 --retry=3 -- ... Collecting tests... Installing system database... Can't use an undefined value as an ARRAY reference at lib/My/SysInfo.pm line 166. This line 166 in src:mariadb/mysql-test/lib/My/SysInfo.pm has: # Return the number of cpus found sub num_cpus { my ($self)= @_; return int(@{$self->{cpus}}) or confess "INTERNAL ERROR: No cpus in list"; } The cpus is initialized to be an empty list on the line 119: 118 my $self= bless { 119 cpus => (), 120 }, $class; Then it tries to fill it from /proc/cpuinfo (line 67) and `kstat` (line 95). If nothing worked it'll create one dummy cpu: 145 push(@{$self->{cpus}}, 146 { 147 bogomips => DEFAULT_BOGO_MIPS, 148 model_name => "unknown", 149 }); See more discussion from MariaDB devs: https://lists.launchpad.net/maria-developers/msg13356.html Thus the primary suspect here is the kernel upgrade. Perl versions have not changed. This only happens on armel/armhf, other archs are fine. Reproducing the environment on ci.debian.net / ci-worker-arm??-?? to study how /proc/cpu etc looks like, so filing this against the Linux package is somewhat of a guess, but at least we get a Bug# to reference for further research.
