Imperial-MEng/pintos_22
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Implement complete stack initialization, process_wait, and all system calls correctly except exec #34

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td1223 merged 46 commits from userprog-merge into master 2024-11-11 22:56:29 +00:00
Conversation 1 Commits 46 Files Changed 10 +122 -9
4 changed files with 122 additions and 9 deletions
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src/userprog/process.c
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@@ -262,8 +262,8 @@ process_exit (void)
struct process_result *, and may be waiting so call sema_up */ struct process_result *, and may be waiting so call sema_up */
else else
{ {
sema_up (&cur->result->sema);
lock_release (&cur->result->lock); lock_release (&cur->result->lock);
sema_up (&cur->result->sema);
} }
} }
@@ -283,8 +283,8 @@ process_exit (void)
/* Child is still alive, signal via sema that parent has died. */ /* Child is still alive, signal via sema that parent has died. */
else else
{ {
sema_up (&result->sema);
lock_release (&result->lock); lock_release (&result->lock);
sema_up (&result->sema);
} }
} }