Bug#1029720: [Pkg-nagios-devel] Bug#1029720: monitoring-plugins-contrib: false positive w bookworm kernel: "running kernel does not match on-disk kernel image'
Am 26.01.2023 um 17:41 teilte Holger Levsen mit: Hi, on a system running bookworm and the latest amd64 kernel /usr/lib/nagios/plugins/check_running_kernel warns me that the running kernel doesnt match the on-disk kernel, while it *is* running the latest kernel. (line breaks added for better readability.) In the moment I'm trying to understand how the script works. My current state is: it checks, which compression mode is used, for the kernel images in /boot/ (which seems to be xz for bookworm), then it decompresses the xz compressed part of the kernel images and searches for "Linux version". The part after "Linux version" is compared to the content of /proc/version. Unfortunately there is a difference: /boot/vmlinuz: Linux version 6.1.0-5-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) # SMP PREEMPT_DYNAMIC Debian 6.1.12-1 (2023-02-15) /proc/version Linux version 6.1.0-5-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.12-1 (2023-02-15) So it could be a bug in the kernel configuration too. All this worked fine on Debian stable. I did not check if there was another compression method in use. I could not dig further, I failed to extract the xz compressed part of the kernel correctly. Not sure if this is useful. Hilmar -- sigfault
Bug#1029720: [Pkg-nagios-devel] Bug#1029720: monitoring-plugins-contrib: false positive w bookworm kernel: "running kernel does not match on-disk kernel image'
Hi Holger, Am 30.01.23 um 12:33 schrieb Holger Levsen: $ scp ./nagios-plugins-contrib-38.20230124/dsa/checks/dsa-check-running-kernel osuosl168-amd64.debian.net: and then there: holger@osuosl168-amd64:~ $ bash dsa-check-running-kernel WARNING: Running kernel does not match on-disk kernel image: [Linux version 6.1.0-1-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.39.90.20221231) #1 SMP PREEMPT_DYNAMIC Debian 6.1.4-1 (2023-01-07) != Linux version 6.1.0-1-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.39.90.20221231) # SMP PREEMPT_DYNAMIC Debian 6.1.4-1 (2023-01-07)] holger@osuosl168-amd64:~ $ md5sum dsa-check-running-kernel 155205740a07f98f13bf6045b317c505 dsa-check-running-kernel so, no, doesnt help. thanks for confirming. As I don't have a bookworm system (with running kernel) at hand, I can't go deeper into debugging this issue until I get hands on it. Sorry Jan
Bug#1029720: [Pkg-nagios-devel] Bug#1029720: monitoring-plugins-contrib: false positive w bookworm kernel: "running kernel does not match on-disk kernel image'
Hi Jan, On Mon, Jan 30, 2023 at 11:34:31AM +0100, Jan Wagner wrote: > can you try the version from unstable > (https://packages.debian.org/sid/nagios-plugins-contrib) which I uploaded a > few days ago? $ scp ./nagios-plugins-contrib-38.20230124/dsa/checks/dsa-check-running-kernel osuosl168-amd64.debian.net: and then there: holger@osuosl168-amd64:~ $ bash dsa-check-running-kernel WARNING: Running kernel does not match on-disk kernel image: [Linux version 6.1.0-1-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.39.90.20221231) #1 SMP PREEMPT_DYNAMIC Debian 6.1.4-1 (2023-01-07) != Linux version 6.1.0-1-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.39.90.20221231) # SMP PREEMPT_DYNAMIC Debian 6.1.4-1 (2023-01-07)] holger@osuosl168-amd64:~ $ md5sum dsa-check-running-kernel 155205740a07f98f13bf6045b317c505 dsa-check-running-kernel so, no, doesnt help. (the md5sum is just there to show you which version I tried, 38.20230124.) -- cheers, Holger ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ holger@(debian|reproducible-builds|layer-acht).org ⢿⡄⠘⠷⠚⠋⠀ OpenPGP: B8BF54137B09D35CF026FE9D 091AB856069AAA1C ⠈⠳⣄ 三人成虎- Three men make a tiger. In other words, if one guy says "there's a tiger over there" you might not believe them, if three guys in a row all say this- you think there's a tiger there. A lie, repeated often enough, will be accepted as truth. signature.asc Description: PGP signature
Bug#1029720: [Pkg-nagios-devel] Bug#1029720: monitoring-plugins-contrib: false positive w bookworm kernel: "running kernel does not match on-disk kernel image'
Hi Holger, Am 26.01.23 um 17:41 schrieb Holger Levsen: on a system running bookworm and the latest amd64 kernel /usr/lib/nagios/plugins/check_running_kernel warns me that the running kernel doesnt match the on-disk kernel, while it*is* running the latest kernel. (line breaks added for better readability.) thanks for your bugreport. can you try the version from unstable (https://packages.debian.org/sid/nagios-plugins-contrib) which I uploaded a few days ago? Thank Jan
