Rpi3 smsc0: warning: failed to create new mbuf

[bob prohaska]

An RPI3 running 13.0-CURRENT #0 r355024 stalled with a flood of
smsc0: warning: failed to create new mbuf
on the console. It was compiling www/chromium.

The debugger started without difficulty, but unfortunately
I neglected to capture a backtrace. The machine rebooted
without difficulty and has resumed the build of www/chromium.

Is a backtrace worth collecting if it happens again?

Thanks for reading,

bob prohaska