19 Dec
2023
19 Dec
'23
3:23 p.m.
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