From mboxrd@z Thu Jan 1 00:00:00 1970 From: mulyadi.santosa@gmail.com (Mulyadi Santosa) Date: Tue, 17 May 2011 01:40:45 +0700 Subject: how to debug kernel in qemu using ubuntu image In-Reply-To: References: Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hi... On Mon, May 16, 2011 at 13:40, Amirali Shambayati wrote: > I'm using linux-0.2.img image(which is a light linux image) to debug > kernel using Qemu. where do you get that image? and why don't you make one by yourself? > I'm working on IO schedulers' optimization. As Qemu > boots kernel, IO scheduler sends read requests to disk. Also by > entering commands such as 'ls', it sends read requests. I'm looking > for a way to send write requests. "echo" command? "dd"? >Thus I thought that using a > benchmark which sends both read and write requests, is suitable, but > as linux-0.2.img is a very simple and light image, it is almost > impossible to setup heavy benchmarks on it. could you explain what do you mean by "heavy"? >So I want to use an ubuntu > image instead. But I don't know where I should see kernel printks. "see"? or "set"? I believe it's the latter, right? what do you want to see through printk, anyway? -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com