On Tue, Dec 19, 2023 at 09:50:18AM -0500, Joe Lawrence wrote: > There is a loop_util() utility function in the script that could be used > to wait, like: > > log "$last_dmesg_msg" > loop_until "dmesg | grep -q '$last_dmesg_msg'" || > die "Can't find canary dmesg entry, buffer overrun?" > LAST_DMESG=$(dmesg | grep "$last_dmesg_msg") > > That should catch 1) short latencies and 2) buffer rollover. Maybe that > is good enough? I guess, if loop_until() would fail in case a message did not show up in meaningful time, that would be it. > -- > Joe >
