Re: Re: [lkcd-devel] [PATCH] LKCD patch for IPF(IA64) Update

Hi,
You're right. The bug is in kl_mem_ia64.h. KL_PAGE_SHIFT_IA64 define 
value is set to 13ULL and doesn't take care of config values (4k,8k,16k 
or 64k).
Also VMALLOC_START_IA64 0xa000000000000000  has changed to 
0xa000000200000000

thanks

guy

Haren Myneni wrote:
> 
> It looks like a bug in IA64 LCRASH - page table translation 
> (kl_page_ia64.c) You noticed this problem only with modules since the 
> module structures are allocated vmalloc space. Thus, LCRASH needs page 
> table access for memory translation. First, we should see whether macros 
> that are used for page table translation are correct both in LCRASH as 
> well as in the kernel. It is the common problem in LCRASH since we are 
> hard coding them in lkcdutils.
> 
> Note that I never worked on IA64 LKCD, but giving my comments based on 
> my experience in other archs. You should verify kl_page_ia64.c, 
> kl_mem_ia64.c and linux/include/asm-ia64/pgtable.h (kernel source) for 
> page table translation.
> 
> Thanks
> Haren
> 
>  
> 
> Sent by:        [email protected]
> 
> To:        AKIYAMA Nobuyuki <[email protected]>
> cc:        [email protected], 
> [email protected]
> Subject:        Re: [lkcd-devel] [PATCH] LKCD patch for IPF(IA64) Update
> 
> 
> 
> Hi,
> I used your patches to build a 2.6 kernel for an itanium 2
> machine and lkcdutils too (including dwarf2).
> Everything work fine if I run lcrash on /dev/mem or a dump
> without module loaded.
> But if I load a module (with insmod for example) I get running
> lcrash the following messages :
> 
> map = /boot/System.map
> dump = /dev/mem
> kerntypes = /boot/Kerntypes
> 
> 
> Please wait...
> Check dump architecture:
> Warning: Unknown magic number in dump header.
> Warning: Unknown dump arch. Setting dump arch to host arch.
> Init host arch specific data ... Done.
> Init dump arch specific data ... Done.
> Loading system map ... Done.
> Set dump specific data ... Done.
> Loading type info (Kerntypes) ... Done.
> Version of map,dump and types:
> tigre1_frec_bull_fr_Thu_Mar_11_12_34_30_CET_2004
> Loading ksyms from dump ... Failed.
> 
> invalid address mapping
> 
> any idea ???
> thanks
> regards
> 
> Guy Sauvebois
> 
> 
> AKIYAMA Nobuyuki wrote:
>  > Hi,
>  >
>  > I update the LKCD patch for IPF(IA64). From this patch,
>  > the Dwarf2 format has been supported.
>  >  - 2.6.2 kernel support
>  >  - "dis" command support
>  >  -  fix the bug of alt-sysrq-d.
>  > Please try these patches.
>  >
>  > Attached Files:
>  >  The following files are included.
>  > - lkcd_ipf.patch
>  >     This patch includes changes of LKCD for IPF support.
>  > - lkcdutils_dwarf2.patch
>  >     patch of lkcdutils, including Dwarf2 format support.
>  >
>  > How To Use:
>  > I) Make kernel
>  >    1. Download linux-2.6.2 source tree
>  >    2. Download the latest patch of LKCD from cvs
>  >    3. Apply the existing lkcd patch for linux-2.6.2
>  >    4. Apply lkcd_ipf.patch
>  >    5. Make and install kernel.
>  >    6. cp linux-2.6.2/init/kerntypes.o /boot/Kerntypes
>  >    7. cp linux-2.6.2/System.map /boot/System.map
>  >
>  > II) Make lkcdutils
>  >    1. Download the latest lkcdutils source
>  >    2. Apply lkcdutils_dwarf2.patch
>  >    3. configure --pgsize=<value of page size>
>  >         default value is 4096 if not specified.
>  >       Note:
>  >         --pgsize indecates the size of the swap header.
>  >         Its value is same as the PAGESIZE used by kernel
>  >    4. make and make install
>  >
>  > Best Regards,
>  > Nobuyuki Akiyama
> 
> 
> --
> Guy Sauvebois                tel:229 7978 ou 04 76 29 70 81
> email:                        [email protected]
> 
> 
> 
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-- 
Guy Sauvebois		tel:229 7978 ou 04 76 29 70 81
email:			[email protected]



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