Messages in this thread | | | Subject | sungem hangs in atomic if netconsole enabled but no carrier | From | Johannes Berg <> | Date | Tue, 20 Dec 2005 13:08:58 +0100 |
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I've been debugging some issues and wondered why I got hangs in random places in the code. It turns out that the problem is that I still had netconsole enabled even though I have no network at the moment. So what I had was: * sungem compiled in * netconsole=.... as command line * no network cable plugged in
sungem does recognise this situation and says that waiting for carrier timed out. However, later, when I printk() in with interrupts disabled, the system hangs after printing out a few lines to the console (I think it's more than one, not sure though, might be just a single one).
Turns out that if I remove the netconsole=... option to my kernel, all works fine and the system no longer hangs. Obviously not plugging in a network cable is pretty useless when netconsole is turned on, but I think it should not hang the system completely. So far I haven't been able to figure out where it actually hangs and don't even know how to do so -- I'm open for suggestions on how to find out why/where it hangs or even fixes.
johannes
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