On Wed, Feb 17, 2010 at 12:15 PM, Pavel Roskin <[email protected]> wrote: > On Wed, 2010-02-17 at 09:56 -0800, hong zhang wrote: >> > > >> > I'm also sorry about that, on the other hand, there are >> > many schools >> > of thought on answering posts, but I don't want this to be >> > a >> > discussion of that. >> > I would just like to get some ideas of what I can debug to >> > get some >> > answers. Out of curiosity, is there a way to do a >> > continuous >> > recording of dmesg to a serial console? These hangs >> > occur regularly, >> >> Use netconsole but you need two machines. > > I would never recommend using netconsole to debug a hang in a network > driver. Chances are too high that the hang will block the network stack > and prevent the most interesting data from leaving the system. > > Besides, it's one thing to debug something that is easy to reproduce and > that is known to show up on the netconsole. It's another thing to debug > something that may not appear on any console after hours of waiting. > > -- > Regards, > Pavel Roskin >
Here is a dmesg containing a hang, the dmesg even notes that there was a soft lockup. I hope this helps, thanks in advance! James
kernel.log.lzma
Description: Binary data
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