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| author | Robert Morris <[email protected]> | 2020-08-13 14:10:58 -0400 |
|---|---|---|
| committer | Robert Morris <[email protected]> | 2020-08-13 14:10:58 -0400 |
| commit | 4a87a0ae8bc4a186842fb5f57454412de56f52bc (patch) | |
| tree | cbe357dd9ef3df772c2bc0446b666ef10425ab7c /kernel/vm.c | |
| parent | adee82c3e7334a09996c0fe9cc75d9a80abc81c8 (diff) | |
| download | xv6-labs-4a87a0ae8bc4a186842fb5f57454412de56f52bc.tar.gz xv6-labs-4a87a0ae8bc4a186842fb5f57454412de56f52bc.tar.bz2 xv6-labs-4a87a0ae8bc4a186842fb5f57454412de56f52bc.zip | |
fix a bug in the out-of-memory handling code in exec
Diffstat (limited to 'kernel/vm.c')
| -rw-r--r-- | kernel/vm.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/vm.c b/kernel/vm.c index 2f3789f..bccb405 100644 --- a/kernel/vm.c +++ b/kernel/vm.c @@ -235,8 +235,7 @@ uvmalloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz) return oldsz; oldsz = PGROUNDUP(oldsz); - a = oldsz; - for(; a < newsz; a += PGSIZE){ + for(a = oldsz; a < newsz; a += PGSIZE){ mem = kalloc(); if(mem == 0){ uvmdealloc(pagetable, a, oldsz); |