On Fri, Mar 23, 2018 at 03:56:27PM +0530, asadpt iqroot wrote: > Hi all > > In Jetson Tx 2 board, we enabled i2c core debug messages > (CONFIG_I2C_CORE_DEBUG) in linux kernel config. But while booting the > board enters in a loop and gives dmesg as > > > * 63 printk messages dropped ** [ 97.313148] ina3221x 0-0041: uevent > ** 58 printk messages dropped ** [ 97.320210] ina3221x 0-0040: uevent > ** 58 printk messages dropped ** [ 97.327111] ina3221x 0-0043: uevent > ** 58 printk messages dropped ** [ 97.336461] pca953x 0-0077: uevent > ** 59 printk messages dropped ** [ 97.343878] max77620 4-003c: uevent > ** 58 printk messages dropped ** [ 97.351046] max77620 4-003c: uevent > ** 59 printk messages dropped ** [ 97.358435] nct1008_nct72 7-004c: uevent > ** 60 printk messages dropped ** [ 97.365804] dummy 4-0068: uevent > ** 59 printk messages dropped ** [ 97.372745] ina3221x 0-0042: uevent > ** 58 printk messages dropped ** [ 97.379776] ina3221x 0-0041: uevent > ** 60 printk messages dropped ** [ 97.386834] pca953x 0-0077: uevent > ** 57 printk messages dropped ** [ 97.393767] i2c 0-003c: uevent > ** 56 printk messages dropped ** [ 97.400361] nct1008_nct72 7-004c: uevent > ** 62 printk messages dropped ** [ 97.407815] nct1008_nct72 7-004c: uevent > ** 62 printk messages dropped ** [ 97.415080] dummy 4-0068: uevent > ** 57 printk messages dropped ** [ 97.422010] ina3221x 0-0041: uevent > ** 61 printk messages dropped ** [ 97.429208] ina3221x 0-0043: uevent > ** 56 printk messages dropped ** [ 97.435958] pca953x 0-0074: uevent > ** 56 printk messages dropped ** [ 97.442593] pca953x 0-0074: uevent > ** 55 printk messages dropped ** [ 97.449308] pca953x 0-0074: uevent > ** 56 printk messages dropped ** [ 97.455922] pca953x 0-0077: uevent > > > But it is not reaching login prompt. > how to solve this issue.. I remember something like that. Which kernel version are you using? If it's older than 4.6 you might want to cherry pick 8dcf32175b4e ("i2c: prevent endless uevent loop with CONFIG_I2C_DEBUG_CORE") Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |