WLAN: known issues and how to help - uptime test - new record!

Werner Almesberger werner at openmoko.org
Wed Feb 11 16:47:16 CET 2009

Philip Rhoades wrote:
>> - just hope WLAN will stay up long enough for you to take dmesg before
>>   another error pushes the first one out of the message buffer, or
> "WLAN will stay up long enough" ?

During that second session, after the first hang.

>> - before starting the test, set  log_buf_len=2M  in  bootargs_base  in
>>   the u-boot environment, and then retrieve the kernel messages with
>>   dmesg -s 2000000
> Sounds like the best course . . so the complete command would be?:

- Enter u-boot and do:

  setenv bootargs_base ${bootargs_base} log_buf_len=2M

- Reboot into Linux

- Check that log_buf_len has really been set:

  cat /proc/cmdline

- Wait for WLAN to go down

- Connect and

  dmesg -s 2000000

- Werner

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