I2C errors in console

[nkskjames]

root@palmetto:~# i2cdetect 6
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-6.
I will probe address range 0x03-0x77.
Continue? [Y/n] 
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          03 -- -- -- -- -- -- -- -- -- -- -- -- 
10: 10 systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- 
20: systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
20 -- -- -- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- 2d systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
2e systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- 
30: -- -- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- 
40: -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- 48 systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- -- 
50: -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
55 -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- 
60: systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- 
70: -- -- -- systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.
-- -- -- -- --                 systemd-journald[402]: /dev/kmsg buffer overrun, some messages lost.

[shenki]

These look like systemd-journald errors, not i2c errors

[williamspatrick]

It seems like #12 is the culprit. If we are flooding out i2c logs to the console then systemd might not be able to keep up. Seems like two different symptoms of the same problem.

[jk-ozlabs]

Should be fixed by 3cd273e, but there seems to be other issues with i2cdetect.