After installing sudo 1.8.29 from pkgsrc (security/sudo) I started frequently seeing this warning message:
sudo: setrlimit(3): Invalid argument
It took a few rounds, but eventually I applied an acceptable patch for the pkgsrc-2019Q4 release. Later an upstream workaround was committed and included in the sudo 1.8.30 release. (more…)
pve-root-ca.pem file in Keychain Access (File > Import Items), then open the item and mark it trusted (e.g. Always trust).
The new requirements for trusted certificates on macOS Catalina and iOS 13 blocked me from accessing the web UI on Proxmox installations (NET::ERR_CERT_REVOKED). Fresh installations would work, as Proxmox has been updated to generate “better” certificates. Existing installations, unfortunately, are not automatically fixed on upgrading to Proxmox 6.
Certificate management on Proxmox is handled with pvenode(1) — except when it isn’t. There is no functionality there for regenerating the self-signed certificates. An older wiki page for HTTPS certificate configuration provided some useful hints: pvecm(1) has an updatecerts command. It won’t, however, regenerate existing (unexpired) certificates.
Against the warnings on the Certificate mangement page I thought I’d try removing the apparently relevant files manually:
cd /etc/pve rm pve-root-ca.pem priv/pve-root-ca.key nodes/*/pve-ssl.{key,pem}
Then I regenerated the certificates and restarted pveproxy(8) on each node:
pvecm updatecerts --force systemctl restart pveproxy
Refreshing the page in the browser restores access to the web UI.
I noticed that tcsh 6.22.02 has a broken configure script:
./configure: gl_HOST_CPU_C_ABI_32BIT: not found
This looked like an unexpanded m4 macro to me. I was unable to reproduce the error if I ran autoreconf under Debian buster, so I switched to a NetBSD host and tried there. Indeed, running autoreconf resulted in the same broken configure script.
Upon closer inspection, it turns out that devel/gettext-m4 had been updated to a new version in pkgsrc without noticing that generated configure scripts now throw an error. The cause was a missing file (host-cpu-c-abi.m4).
For some reason the package Makefile has a hardcoded list of files to install from gettext-tools/gnulib-m4 (as opposed to calling the install target via make). The reason is probably to avoid unnecessary or irrelevant files. However, this means that any relevant changes to gettext-tools/gnulib-m4/Makefile can easily go unnoticed.
I’ve added the missing file to the list, but I worry that this approach is prone to errors. Perhaps some easy check could be added and noted in the package Makefile to detect problems, e.g. generating a sample configure script before committing a version update.
By default many Linux network interface card drivers set their SMP affinity mask to either all zeroes or all ones (“ff” — the length of the mask depends on the number of CPUs on the system). The former results in all queues and interfaces running on CPU ID 0, which can become a performance bottleneck due to insufficient computing power. The latter results in all queues and interfaces being scheduled on multiple CPUs, which can become a performance bottleneck due to increased CPU memory cache misses. (more…)