I have a Pi that has recently developed a habit of maxing the SD card with syslog messages (somewhere in the hundreds per second) of the message: "Date/Time user kernel: [ 2257.432445] rc rc0: IR event FIFO is full!"
I found this bug report and it was closed in Feb 2019 as "resolved". I looked at the change log for kernel version "linux/4.9.228-1" and found these 3 lines that seem possibly-related but nothing definitive:
- USB: serial: ir-usb: add missing endpoint sanity check - USB: serial: ir-usb: fix link-speed handling - USB: serial: ir-usb: fix IrLAP framing
I also found this bug report and tried adding the following items to
/etc/modprobe.d/blacklist-ir_event_fifo_is_full.conf and rebooted:
blacklist ir_lirc_codec blacklist lirc_dev blacklist sunxi-cir
I then discovered which mods are active with
lsmod | grep "ir", revealing:
Module Size Used by ir_rc6_decoder 16384 0
So I tried adding that to the blacklist file and rebooted:
And still, this doesn't seem to keep it from loading or stop the logs from filling up. Both
/var/log/syslog fill with these same messages.
I haven't found anything recent where this was happening and have exhausted my searching abilities. I mean, searching for "rc rc0: IR event FIFO is full!" in Google with quotes yields 5 results that all seem to be log files.
I'm looking for any guidance on how to stop these messages from accumulating and filling up the SD card.