| displace |
06-28-2015 06:56 AM |
Kernel boot log has duplicate messages
Hey,
I'm trying to set up linux on a certain ARM device and I've currently just compiled the kernel. I setup uboot and booted from a SD-card successfully. Now I attached a usb-to-serial adapter to the board and was watching the kernel boot logs. Here's a snippet:
Quote:
<6>usbhid: USB HID core driver
^M[ 3.429637] usbhid: USB HID core driver
<6>logger: created 256K log 'log_main'
^M[ 3.437557] logger: created 256K log 'log_main'
<6>logger: created 256K log 'log_events'
^M[ 3.445953] logger: created 256K log 'log_events'
<6>logger: created 256K log 'log_radio'
^M[ 3.454386] logger: created 256K log 'log_radio'
<6>logger: created 256K log 'log_system'
^M[ 3.462794] logger: created 256K log 'log_system'
<6>IPv4 over IPv4 tunneling driver
^M[ 3.473816] IPv4 over IPv4 tunneling driver
<6>TCP: cubic registered
^M[ 3.481046] TCP: cubic registered
<6>Initializing XFRM netlink socket
^M[ 3.487578] Initializing XFRM netlink socket
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Why are there all these duplicate lines in the log? Seems like something prints out a message before the main kernel log does. I've setup the kernel to print out timing information, so the lines starting with tags like "[ 3.481046]" are the correct ones. The other ones seem to always start with a tag like <3>, <4>, <5>, <30>, etc.
Is there some kernel parameter I need to disable at compile time to prevent these entries from appearing?
Thanks! |
