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-rw-r--r--arch/um/kernel/um_arch.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 82058ac7d48..9db85b2ce69 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -258,6 +258,7 @@ int __init linux_main(int argc, char **argv)
{
unsigned long avail, diff;
unsigned long virtmem_size, max_physmem;
+ unsigned long stack;
unsigned int i;
int add;
char * mode;
@@ -348,7 +349,9 @@ int __init linux_main(int argc, char **argv)
}
virtmem_size = physmem_size;
- avail = TASK_SIZE - start_vm;
+ stack = (unsigned long) argv;
+ stack &= ~(1024 * 1024 - 1);
+ avail = stack - start_vm;
if (physmem_size > avail)
virtmem_size = avail;
end_vm = start_vm + virtmem_size;