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SCHED_RESUME was omitted on execve() during thread_recycle. Now we do sched_init().

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This caused the scheduler not to increment total priority count
which in turn caused the system to have wrong amount of priorities.
This commit is contained in:
Bahadir Balban
2009-05-14 13:55:15 +03:00
parent f37cadf5c8
commit 3e91be04d2
1 changed files with 27 additions and 5 deletions
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32
src/api/thread.c
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@@ -49,13 +49,35 @@ int thread_suspend(struct task_ids *ids)
return ret; return ret;
} }
int arch_clear_thread(struct ktcb *task) int arch_clear_thread(struct ktcb *tcb)
{ {
memset(&task->context, 0, sizeof(task->context)); /* Remove from the global list */
task->context.spsr = ARM_MODE_USR; tcb_remove(tcb);
/* Sanity checks */
BUG_ON(!is_page_aligned(tcb));
BUG_ON(tcb->wqh_pager.sleepers > 0);
BUG_ON(tcb->wqh_send.sleepers > 0);
BUG_ON(tcb->wqh_recv.sleepers > 0);
BUG_ON(!list_empty(&tcb->task_list));
BUG_ON(!list_empty(&tcb->rq_list));
BUG_ON(tcb->rq);
BUG_ON(tcb->nlocks);
BUG_ON(tcb->waiting_on);
BUG_ON(tcb->wq);
/* Reinitialise the context */
memset(&tcb->context, 0, sizeof(tcb->context));
tcb->context.spsr = ARM_MODE_USR;
/* Clear the page tables */ /* Clear the page tables */
remove_mapping_pgd_all_user(TASK_PGD(task)); remove_mapping_pgd_all_user(TASK_PGD(tcb));
/* Reinitialize all other fields */
tcb_init(tcb);
/* Add back to global list */
tcb_add(tcb);
return 0; return 0;
} }
@@ -293,7 +315,7 @@ int thread_create(struct task_ids *ids, unsigned int flags)
if ((err = thread_setup_space(new, ids, flags)) < 0) { if ((err = thread_setup_space(new, ids, flags)) < 0) {
/* Since it hasn't initialised maturely, we delete it this way */ /* Since it hasn't initialised maturely, we delete it this way */
free_page(new); free_page(new);
return err; return err;
} }