>>> Lennart Poettering <lenn...@poettering.net> schrieb am 01.06.2021 um 13:39 in Nachricht <YLYcdMZ+MgmcPdmG@gardel-login>: > On Di, 01.06.21 12:42, Ulrich Windl (ulrich.wi...@rz.uni‑regensburg.de) wrote: > >> Jun 01 12:33:10 h18 systemd‑journald[3256]: Missed 195 kernel messages >> >> A few questions: >> 1) What causes this? > > Dunno. Something is massively flooding the kernel log buffer. Probably > some borked driver or so. "dmesg" might tell you what.
I had meant the dropping of messages, not the creation of such. It seems it's intentional. > >> 2) How can systemd know how many messasges were missed? > > Kernel messages delivered to userspace come with a sequence number. If > there are some missing we know the kernel dropped them from the kmsg > log buffer before we could read them. OK! > >> 3) Can I avoid that problem? > > Figure out which kernel driver/subsystem is responsible. > > You could also enlarge the kernel log buffer, see log_buf_mem= kernel > cmdline switch. Confused: So is it the kjernel dropping/loosing messages, or is it journald? > > Lennart > > ‑‑ > Lennart Poettering, Berlin _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
