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1 changed files with 2 additions and 1 deletions
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@ -450,7 +450,8 @@ scheduler(void)
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c->proc = 0;
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c->proc = 0;
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for(;;){
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for(;;){
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// The most recent process to run may have had interrupts
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// The most recent process to run may have had interrupts
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// turned off; turn them on to avoid deadlock.
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// turned off; enable them to avoid a deadlock if all
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// processes are waiting.
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intr_on();
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intr_on();
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for(p = proc; p < &proc[NPROC]; p++) {
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for(p = proc; p < &proc[NPROC]; p++) {
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