Hi Julian,
I have been running valgrind 3.8.1 with your patch but for various reasons
(unrelated to valgrind) I haven't been able to keep that large job that needs
more than 32G running long enough to arrive at a significant memory use. I'll
let you know when it does.
On a smaller job (using 18G) I do still get these messages:
==15201== Warning: set address range perms: large range [0x247cd5040,
0x267cd5040) (undefined)
==15201== Warning: set address range perms: large range [0x247cd5028,
0x267cd5058) (noaccess)
but I understand they are not interfering with valgrind's operation.
Thanks again for your help.
][ Maurice van Swaaij ][
----- Original Message -----
Thanks, I'll try it out with 3.8.1 and let you know if it works.
][ Maurice van Swaaij ][
----- Original Message -----
On Wednesday, January 02, 2013, Maurice van Swaaij wrote:
> Now for my question: is it possible to go beyond the 32G memory allocation
> limit?
The patch below allows it to use up to 64G, that is, it doubles the
available memory. If someone would test it properly, it might get
committed; but so far we have had (AFAIK) no definitive "it works"
feedback.
J
Index: memcheck/mc_main.c
===================================================================
--- memcheck/mc_main.c (revision 13179)
+++ memcheck/mc_main.c (working copy)
@@ -167,10 +167,10 @@
#else
-/* Just handle the first 32G fast and the rest via auxiliary
+/* Just handle the first 64G fast and the rest via auxiliary
primaries. If you change this, Memcheck will assert at startup.
See the definition of UNALIGNED_OR_HIGH for extensive comments. */
-# define N_PRIMARY_BITS 19
+# define N_PRIMARY_BITS 20
#endif
@@ -6524,11 +6524,11 @@
tl_assert(sizeof(Addr) == 8);
tl_assert(sizeof(UWord) == 8);
tl_assert(sizeof(Word) == 8);
- tl_assert(MAX_PRIMARY_ADDRESS == 0x7FFFFFFFFULL);
- tl_assert(MASK(1) == 0xFFFFFFF800000000ULL);
- tl_assert(MASK(2) == 0xFFFFFFF800000001ULL);
- tl_assert(MASK(4) == 0xFFFFFFF800000003ULL);
- tl_assert(MASK(8) == 0xFFFFFFF800000007ULL);
+ tl_assert(MAX_PRIMARY_ADDRESS == 0xFFFFFFFFFULL);
+ tl_assert(MASK(1) == 0xFFFFFFF000000000ULL);
+ tl_assert(MASK(2) == 0xFFFFFFF000000001ULL);
+ tl_assert(MASK(4) == 0xFFFFFFF000000003ULL);
+ tl_assert(MASK(8) == 0xFFFFFFF000000007ULL);
# endif
}
Index: coregrind/m_aspacemgr/aspacemgr-linux.c
===================================================================
--- coregrind/m_aspacemgr/aspacemgr-linux.c (revision 13179)
+++ coregrind/m_aspacemgr/aspacemgr-linux.c (working copy)
@@ -1649,7 +1649,7 @@
aspacem_minAddr = (Addr) 0x04000000; // 64M
# if VG_WORDSIZE == 8
- aspacem_maxAddr = (Addr)0x800000000 - 1; // 32G
+ aspacem_maxAddr = (Addr)0x1000000000ULL - 1; // 64G
# ifdef ENABLE_INNER
{ Addr cse = VG_PGROUNDDN( sp_at_startup ) - 1;
if (aspacem_maxAddr > cse)
------------------------------------------------------------------------------
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