diff options
Diffstat (limited to 'recipes/qemu/qemu-0.12.5/fallback.to.safe.mmap_min_addr.patch')
-rw-r--r-- | recipes/qemu/qemu-0.12.5/fallback.to.safe.mmap_min_addr.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/recipes/qemu/qemu-0.12.5/fallback.to.safe.mmap_min_addr.patch b/recipes/qemu/qemu-0.12.5/fallback.to.safe.mmap_min_addr.patch new file mode 100644 index 0000000000..fb1080f078 --- /dev/null +++ b/recipes/qemu/qemu-0.12.5/fallback.to.safe.mmap_min_addr.patch @@ -0,0 +1,37 @@ +From c313f89c33217ac0e471554dace2144718f86669 Mon Sep 17 00:00:00 2001 +From: Martin Jansa <Martin.Jansa@gmail.com> +Date: Thu, 13 May 2010 12:23:40 +0200 +Subject: [PATCH] linux-user: use default mmap_min_addr 65536 when /proc/sys/vm/mmap_min_addr cannot be read + +* 65536 is default at least for ubuntu and fedora. +--- + linux-user/main.c | 5 +++++ + 1 files changed, 5 insertions(+), 0 deletions(-) + +diff --git a/linux-user/main.c b/linux-user/main.c +index 18b52c0..cf2cc59 100644 +--- a/linux-user/main.c ++++ b/linux-user/main.c +@@ -2728,6 +2728,7 @@ + * When user has explicitly set the quest base, we skip this + * test. + */ ++#define MMAP_MIN_ADDR_DEFAULT 65536 + if (!have_guest_base) { + FILE *fp; + +@@ -2736,8 +2737,14 @@ + if (fscanf(fp, "%lu", &tmp) == 1) { + mmap_min_addr = tmp; + qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr); ++ } else { ++ qemu_log("cannot read value from /proc/sys/vm/mmap_min_addr, assuming %d\n", MMAP_MIN_ADDR_DEFAULT); ++ mmap_min_addr = MMAP_MIN_ADDR_DEFAULT; + } + fclose(fp); ++ } else { ++ qemu_log("cannot open /proc/sys/vm/mmap_min_addr for reading, assuming %d\n", MMAP_MIN_ADDR_DEFAULT); ++ mmap_min_addr = MMAP_MIN_ADDR_DEFAULT; + } + } + #endif /* CONFIG_USE_GUEST_BASE */ |