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Added support for faulty pagers and their threads to become zombies

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Added support for pagers that fault to suspend and become zombies
along with all the threads that they manage. Zombie killing is to
be done at a later time, from this special zombie queue.

The implementation works same as a suspension, with the added action
that the thread is moved to a queue in kernel container.
This commit is contained in:
Bahadir Balban
2009-10-19 18:48:55 +03:00
parent 9177166817
commit cfa35e4a66
8 changed files with 110 additions and 78 deletions
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9
include/l4/generic/tcb.h
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@@ -133,13 +133,6 @@ union ktcb_union {
char kstack[PAGE_SIZE];
};
/* Hash table for all existing tasks */
struct ktcb_list {
struct link list;
struct spinlock list_lock;
int count;
};
/*
* Each task is allocated a unique global id. A thread group can only belong to
* a single leader, and every thread can only belong to a single thread group.
@@ -161,6 +154,8 @@ void tcb_init(struct ktcb *tcb);
struct ktcb *tcb_alloc_init(void);
void tcb_delete(struct ktcb *tcb);
void ktcb_list_add(struct ktcb *new, struct ktcb_list *ktcb_list);
void init_ktcb_list(struct ktcb_list *ktcb_list);
void task_update_utcb(struct ktcb *task);
int tcb_check_and_lazy_map_utcb(struct ktcb *task);