aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authoramateur <tianlei.zhao@gmail.com>2010-09-14 13:22:34 +0800
committerRiku Voipio <riku.voipio@nokia.com>2010-12-03 15:09:38 +0200
commitc65ffe6d6ca8b156e729e81054ca7597864354a9 (patch)
treed95b90fb8d6a1338ba117ec544be5c71099c27f5
parentb0e102dd22e7a158fa3dc4148ab6c2e78b363071 (diff)
downloadqemu-arm-c65ffe6d6ca8b156e729e81054ca7597864354a9.tar.gz
linux-user: mmap_reserve() not controlled by RESERVED_VA
mmap_reserve() should be called only when RESERVED_VA is enabled. Otherwise, unmaped virtual address space will never be reusable. This bug will exhaust virtual address space in extreme conditions. Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
-rw-r--r--linux-user/mmap.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 035dfbd076..abf21f6064 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -697,7 +697,9 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
old_size, new_size,
flags | MREMAP_FIXED,
g2h(mmap_start));
- mmap_reserve(old_addr, old_size);
+ if ( RESERVED_VA ) {
+ mmap_reserve(old_addr, old_size);
+ }
}
} else {
int prot = 0;