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From: Nicholas N. <nj...@ca...> - 2004-08-03 14:31:56
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On Tue, 3 Aug 2004, Jeff Dike wrote: >> What address was UML trying to load something at? > > 0xa0000000 Currently Valgrind uses 0xb0000000--0xbfffffff for itself, always. Below that depends which tool you are using, if it uses "shadow memory" (ie. shadowing every memory value with a metavalue), and how big the shadow metavalues are. For example, Memcheck uses 9 bits of shadow memory for every byte of real memory, so it reserves down to 0x52c00000 or so for its own use. If you try Addrcheck, which only uses 1 shadow bit per real byte, it will reserve down to only about 0x9c000000. If you use --tool=none, no shadow memory is needed so you should be able to use up to about 0xaf000000. HTH N |