aditya uttam schrieb: > On Wed, Aug 26, 2009 at 5:09 PM, Tilman Schmidt<tilman@xxxxxxx> wrote: >> printk is fine. To avoid the problem of the messages not making it >> to disk because of a crash, collect them on a separate machine via >> serial console or netconsole. It also helps if you switch to a text >> console before you start your test. Then you can at least copy the >> panic message from the screen by hand or with a digicam. >> > > Could you please describe the sequence of steps to debug through > serial console? I am currently using the 2.6.28 kernel version. - Connect a serial port of the machine under test to a serial port of another machine with a null modem cable. - Start a terminal program on the serial port of the other machine with parameters 9600 bits/s, 8 bits/character, no parity. - Boot the machine under test with the kernel parameter console=ttyS<n> where <n> is the number of the serial port you connected. See Documentation/kernel-parameters.txt Documentation/serial-console.txt for more details. HTH T. -- Tilman Schmidt E-Mail: tilman@xxxxxxx Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
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