On Thu, Jul 30, 2015 at 9:47 PM, Anne Mulhern <amulh...@redhat.com> wrote: > > Where can the support for structured logging be found in the kernel? > It seems tricky, given the kernel's constraints, to support arbitrary > structured logging. >
It was added to kernel/printk.c in v3.5 – printk_emit() accepts an array of key=value metadata, and printk() is a thin wrapper around that. At the same time /dev/kmsg was added, to export the attached data and fix various other problems which /proc/kmsg had. https://git.kernel.org/linus/7ff9554bb578 https://git.kernel.org/linus/e11fea92e13f https://git.kernel.org/linus/c4e00daaa96d https://git.kernel.org/linus/3b552b92817c Rsyslog can import the structured data from /dev/kmsg: http://www.rsyslog.com/doc/v8-stable/configuration/modules/imkmsg.html -- Mantas Mikulėnas <graw...@gmail.com>
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