[Gcl-devel] Re: more on Mac sgc/save problem

[Aurelien Chanudet]

Oops, the ouput contained in my last mail was somewhat
buggy, but the conclusions still hold. Below is a less
buggy output.

Thansk,
Aurelien

; state of memory   sgc_type_map
(2818048 4096 1) (2818048 4096 0) 
(2822144 4096 1) (2822144 4096 1) 
(2826240 4096 1) (2826240 4096 1) 
(2830336 12288 0) (2830336 12288 0) 
(2842624 4096 1) (2842624 4096 1) 
(2846720 32768 0) (2846720 32768 0) 
(2879488 4096 1) (2879488 4096 1) 
(2883584 8192 1) (2883584 8192 1) 
(2891776 12288 0) (2891776 12288 0) 
(2904064 4096 1) (2904064 4096 1) 
(2908160 8192 1) (2908160 8192 1) 
(2916352 110592 0) (2916352 110592 1) 
(3026944 3411968 0) (3026944 3411968 0) 
(6438912 4096 1) (6438912 4096 1) 
(6443008 4096 0) (6443008 4096 1) 
(6447104 28672 0) (6447104 28672 0) 
(6475776 135168 1) (6475776 135168 1) 
(6610944 12288 0) (6610944 12288 0) 
(6623232 8192 1) (6623232 8192 1) 
(6631424 126976 0) (6631424 126976 0) 
(6758400 4096 1) (6758400 4096 1) 
(6762496 8192 0) (6762496 8192 1) 
(6770688 516096 0) (6770688 516096 0) 
(7286784 4096 1) (7286784 4096 1) 
(7290880 8192 0) (7290880 8192 0) 
(7299072 4096 1) (7299072 4096 1) 
(7303168 4096 0) (7303168 4096 0) 
(7307264 4096 1) (7307264 4096 1) 
(7311360 4096 0) (7311360 4096 0) 
(7315456 4096 1) (7315456 4096 1) 
(7319552 20480 1) (7319552 20480 1) 
(7340032 4096 0) (7340032 4096 0) 
(7344128 4096 1) (7344128 4096 1) 
(7348224 8192 1) (7348224 8192 1) 
(7356416 4096 0) (7356416 4096 0) 
(7360512 4096 1) (7360512 4096 1) 
(7364608 12288 1) (7364608 12288 1) 
(7376896 12288 0) (7376896 12288 0) 
(7389184 4096 1) (7389184 4096 1) 
(7393280 20480 0) (7393280 20480 0) 
(7413760 4096 1) (7413760 4096 1) 
(7417856 4096 0) (7417856 4096 0) 
(7421952 10362880 1) (7421952 10362880 1) 
(17784832 4096 0) (17784832 4096 0) 
(17788928 610304 1) (17788928 610304 1) 
(18399232 4096 0) (18399232 4096 0) 
(18403328 106496 1) (18403328 106496 1) 
(18509824 4096 0) (18509824 4096 0) 
(18513920 487424 1) (18513920 487424 1) 
(19001344 28672 0) (19001344 28672 0) 
(19030016 8192 1) (19030016 8192 1) 
(19038208 49152 0) (19038208 49152 0) 
(19087360 4096 1) (19087360 4096 1) 
(19091456 28672 0) (19091456 28672 0) 
(19120128 4096 1) (19120128 4096 1) 
(19124224 118784 0) (19124224 118784 0) 
(19243008 4096 1) (19243008 4096 1) 
(19247104 167936 0) (19247104 167936 0) 
(19415040 4096 1) (19415040 4096 1) 
(19419136 4096 0) (19419136 4096 0) 
(19423232 4096 1) (19423232 4096 1) 
(19427328 8192 0) (19427328 8192 0) 
(19435520 8192 1) (19435520 8192 1) 
(19443712 8192 0) (19443712 8192 0) 
(19451904 65536 1) (19451904 65536 1) 
(19517440 4096 0) (19517440 4096 0) 
(19521536 16384 1) (19521536 16384 1) 
(19537920 4096 0) (19537920 4096 0) 
(19542016 53248 1) (19542016 53248 1) 
(19595264 4096 0) (19595264 4096 0) 
(19599360 53248 1) (19599360 53248 1) 
(19652608 4096 0) (19652608 4096 0) 
(19656704 8192 1) (19656704 8192 1) 
(19664896 139264 1) (19664896 139264 1) 
(19804160 4096 0) (19804160 4096 0) 
(19808256 278528 1) (19808256 278528 1) 
(20086784 159744 0) (20086784 159744 0) 
(20246528 4096 1) (20246528 4096 1) 
(20250624 77824 0) (20250624 77824 0) 
(20328448 4096 1) (20328448 4096 1) 
(20332544 16384 0) (20332544 16384 0) 
(20348928 4096 1) (20348928 4096 1) 
(20353024 172032 1) (20353024 172032 1) 
(20525056 53514240 0) (20525056 53514240 0) 
(74039296 4096 1) (74039296 4096 1) 
(74043392 96518144 0) (74043392 96518144 0) 
(170561536 369127424 1) (170561536 369127424 0) 
Finished loading debug.lsp


> Hi,
> 
> [ As you perhaps remember from previous mails, gdb
> on
> Mac OS X does not correctly interfer with
> segmentation
> faults, which makes SGC debugging a real pain.
> Therefore, I'll probably try to spend some time
> debugging gdb itself before looking at this GCL bug.
> ]
> 
> Camm, is it normal that the state of memory does not
> exactly reflect the state of sgc_type_map ? As can
> be
> seen from the output below (addr size 0 or 1 where 0
> means not writable and 1 means writable) some pages
> appear to be not writable while sgc_type_map
> indicates
> that they should (see page starting at address
> 20582400 for instance).
> 
> Thanks,
> Aurelien
> 



        

        
                
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