From: Yinghai Lu <yinghai@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>,
Jason Wessel <jason.wessel@windriver.com>,
Jan Kiszka <jan.kiszka@web.de>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 06/27] x86, 64bit: early #PF handler set page table
Date: Tue, 18 Dec 2012 12:55:17 -0800 [thread overview]
Message-ID: <CAE9FiQV5zpTiskB_RwXT8XGNfgTGSwc3AAFqCBusq1t4-OSJHw@mail.gmail.com> (raw)
In-Reply-To: <50D0D6D1.70400@zytor.com>
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.
next prev parent reply other threads:[~2012-12-18 20:55 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-18 7:15 [PATCH v7 00/27] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 01/27] x86, mm: Fix page table early allocation offset checking Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 02/27] x86, mm: make pgd next calculation consistent with pud/pmd Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 03/27] x86, realmode: set real_mode permissions early Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 04/27] x86, realmode: use init_level4_pgt to set trapmoline_pgt directly Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 05/27] x86, realmode: Separate real_mode reserve and setup Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 06/27] x86, 64bit: early #PF handler set page table Yinghai Lu
2012-12-18 20:43 ` Yinghai Lu
2012-12-18 20:49 ` H. Peter Anvin
2012-12-18 20:55 ` Yinghai Lu [this message]
2012-12-18 21:07 ` H. Peter Anvin
2012-12-20 16:56 ` Yinghai Lu
2012-12-25 0:16 ` H. Peter Anvin
2012-12-25 4:04 ` Yinghai Lu
2012-12-25 11:20 ` Borislav Petkov
2012-12-25 20:51 ` Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 07/27] x86, 64bit: Print init kernel lowmap correctly Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 08/27] x86: Merge early_reserve_initrd for 32bit and 64bit Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 09/27] x86: add get_ramdisk_image/size() Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 10/27] x86, boot: add get_cmd_line_ptr() Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 11/27] x86, boot: move checking of cmd_line_ptr out of common path Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 12/27] x86, boot: pass cmd_line_ptr with unsigned long Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 13/27] x86, boot: move verify_cpu.S and no_longmode after 0x200 Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 14/27] x86, boot: Move lldt/ltr out of 64bit code section Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 15/27] x86, kexec: remove 1024G limitation for kexec buffer on 64bit Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 16/27] x86, kexec: set ident mapping for kernel that is above max_pfn Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 17/27] x86, kexec: Merge ident_mapping_init and init_level4_page Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 18/27] x86, kexec: only set ident mapping for ram Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 19/27] x86, boot: add fields to support load bzImage and ramdisk above 4G Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 20/27] x86, boot: update comments about entries for 64bit image Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 21/27] x86, boot: Not need to check setup_header version Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 22/27] mm: Add alloc_bootmem_low_pages_nopanic() Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 23/27] x86: Don't panic if can not alloc buffer for swiotlb Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 24/27] x86: Add swiotlb force off support Yinghai Lu
2012-12-22 2:37 ` Konrad Rzeszutek Wilk
2012-12-22 2:42 ` Eric W. Biederman
2012-12-22 3:10 ` Konrad Rzeszutek Wilk
2012-12-22 3:23 ` Eric W. Biederman
2012-12-22 3:25 ` H. Peter Anvin
2012-12-22 5:11 ` Yinghai Lu
2012-12-24 23:34 ` H. Peter Anvin
2012-12-24 23:55 ` Yinghai Lu
2012-12-22 13:21 ` Konrad Rzeszutek Wilk
2012-12-22 5:10 ` Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 25/27] x86, kdump: remove crashkernel range find limit for 64bit Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 26/27] x86: add Crash kernel low reservation Yinghai Lu
2012-12-19 17:22 ` Borislav Petkov
2012-12-19 17:36 ` Yinghai Lu
2012-12-18 7:15 ` [PATCH v7 27/27] x86: Merge early kernel reserve for 32bit and 64bit Yinghai Lu
2012-12-18 22:43 ` [PATCH v7 00/27] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G Borislav Petkov
2012-12-18 23:08 ` Yinghai Lu
2012-12-18 23:22 ` Borislav Petkov
2012-12-22 2:42 ` Konrad Rzeszutek Wilk
2012-12-22 3:01 ` H. Peter Anvin
2012-12-22 13:24 ` Konrad Rzeszutek Wilk
2012-12-23 7:29 ` Yinghai Lu
2012-12-23 14:33 ` H. Peter Anvin
2012-12-23 18:00 ` Yinghai Lu
2012-12-23 18:45 ` Borislav Petkov
2012-12-24 4:54 ` H. Peter Anvin
2012-12-24 10:04 ` Borislav Petkov
2012-12-24 18:44 ` Yinghai Lu
2012-12-24 4:55 ` H. Peter Anvin
2012-12-24 23:56 ` H. Peter Anvin
2012-12-25 20:57 ` Yinghai Lu
2012-12-25 1:06 ` H. Peter Anvin
2012-12-25 11:52 ` Borislav Petkov
2012-12-25 15:51 ` H. Peter Anvin
2013-01-08 21:08 ` Borislav Petkov
2013-01-08 21:15 ` H. Peter Anvin
2013-01-08 21:19 ` Borislav Petkov
2013-01-08 23:17 ` H. Peter Anvin
2013-01-08 23:25 ` Borislav Petkov
2012-12-22 5:20 ` Yinghai Lu
2012-12-22 13:32 ` Konrad Rzeszutek Wilk
2012-12-22 10:38 ` Yinghai Lu
2012-12-22 13:25 ` Konrad Rzeszutek Wilk
2012-12-22 13:47 ` Konrad Rzeszutek Wilk
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