Messages in this thread | | | Date | Mon, 19 Sep 2005 22:46:33 +0800 | From | Wenfeng Liu <> | Subject | [Questions] About experience of using kgdb for 2.6.10 kernel |
| |
Hello, All
Recently I use kgdb for 2.6.10 kernel to debug driver modules. I got the kgdb patch from kgdb CVS server. Here I have some experience of using it with questions.
1. I use gdbmod-2.2 which is claimed to support automatically load module symbol to correct address, but it don't do as that. I have to manually add .text/.data/.bss sections address as add-symbol-file parameters in gdb commands. Does anybody meet this? 2. I can't add one breakpiont for codes in symbol unless I stop in sys_init_module and use "step" into module_init routine. It's not convenient for module debugging, because every time I has to add breakpoints in module_init, even I don't want to debug it. :( 3. The connection often hangs with printing "error packet" message especially adding breakpoints or strike "n" quickly for multiple times. And then the debug can't continue without restart.
Anyway, kgdb is a very good tool for kernel debugging. But from my experience, it's not stable -- or my usage faults? Is anybody willing to share with me his experience/knowledge?
Thanks much, Kent - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |