[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] how to debug xen
On Tue, Feb 01, 2011 at 03:41:02AM +0800, holmes wrote: > Hi all, > I am new to Xen. I want to debug xen. So I have few questions here. If > anybody can help me, I'd appreciate it. > 1: My system is ubuntu 8.04. I download the xen-3.4.2 source code from xen > website. After I "make world", it will download the linux-2.6.18-xen.hg > (kernel?). Also it will make many other folders (./dist). I found > blkfront.c in both ./linux-2.6.18-xen.hg/drivers/xen/blkfront folder and > ./dist/install/lib/modules/2.6.18.8-xen/source/drivers/xen/blkfront/ > folder. So, what's the difference of the two folders and what are they > doing? dist/ is the directory where stuff lands after successful build, ie. you can copy from dist/ to / to install xen. > 2: if I want to log the activities (read/write block) information in > domU(winxp), how do I log it? For example, if domU read a block, I > therefore print a information into a log file (like "domU read"). Should I > change something in blkfront.c file? If so, which one should I change, > because there are two blkfront.c. > 3: if I want to log the information, I GUESS (not sure) I should use > log.debug (or else) to log the info. into some log files. How should I do? > Can anyone give me suggestion? > blkfront is the *frontend* driver for Linux, so a Linux domU running 2.6.18-xen would use it to access the virtual disks. You need to check blkback (blkbk) driver! That's the one running in dom0 providing virtual disks for vms. -- Pasi _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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