Hi,
it looks like even 64G is not enough. Is it possible to go even higher or is
64G the limit?
Our biggest machines have 256G, is it possible to go that high?
Thanks.
][ Maurice van Swaaij ][
----- Original Message -----
Hi Julian,
I have run valgrind 3.8.1 with your patch successfully on a job that neared 64G
in memory allocation.
Thanks again.
][ Maurice van Swaaij ][
----- Original Message -----
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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