Messages in this thread | | | Date | Tue, 18 Dec 2012 13:07:38 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH v7 06/27] x86, 64bit: early #PF handler set page table |
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On 12/18/2012 12:55 PM, Yinghai Lu wrote: > On Tue, Dec 18, 2012 at 12:49 PM, H. Peter Anvin <hpa@zytor.com> wrote: >> On 12/18/2012 12:43 PM, Yinghai Lu wrote: > >> >> That is putting the cart before the horse. What is the specific requirement >> with kgdb here (I didn't see any email on that, please don't have private >> back conversations)? Either way, however, kgdb is a tool to debug the >> kernel... having it a barrier for proper functionality of the kernel is not >> acceptable. > > did not hear back from Jason or Jan. > > Looks like last mail in LKML from Jason is about Oct 20 > > looks like kgdb is want DB, BP, and PF are set at first. > > and just after that early_param for kgdbwait will get into to hold the kernel. > > then command from kgdb could dump ram etc. >
So in that case, kgdb is broken and will need to be fixed up. That happens all the time with debugging tools.
-hpa
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