On Wed, 2006-09-13 at 07:34 -0700, Tom Rini wrote: > On Tue, Sep 12, 2006 at 10:57:27PM -0700, Piet Delaney wrote: > > > As I said in my email about that > > > repository, simple tests work for me. I thought I was even forcing the > > > unwind options to be on, but perhaps they weren't. > > > > Looks like that's enabled: > > OK, hm.. What did 'bt' look like when you first connected?
One stack frame and a bunch of repeating looping frames. Runs right off the screen with ddd. I could dump frame info and all but isn't the goal to get the kgdb stub into the Linus kernel? I'll reboot the new stub Tomorrow and see what's in the frame info. > > [snip] > > Many variables looked bogus due to optimization. > > Perhaps OPTIMIZE_FOR_SIZE is at fault here? I do have that disabled in > my config. gdb just doesn't do a fantastic job with local variables when code is compiled -O2. I've had great success by just compiling the kernel -O0. I suggest our just putting your dwarf code back in until a better solution is found and well tested. Once Andrew has pulled the kgdb patch into mm it can be refined for the next mm patch. I suggest staying focused on getting it into the Linus kernel. I looked back on Andrew's feedback and I didn't see the dwarf code being objectionable. I thought the dwarf code was overkill when I first say in but it's been in the mm patch with George's patch and see more benefit in getting back in mm for the short term. There may be additional consequences with the kdump + (gdb and/or 'crash') environment that we should consider also. It will be easier to get Dave Anderson's group input once it's in mm. -piet > -- Piet Delaney Phone: (408) 200-5256 Blue Lane Technologies Fax: (408) 200-5299 10450 Bubb Rd. Cupertino, Ca. 95014 Email: [EMAIL PROTECTED]
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