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Managed to self-destruct pager.

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Issues:
- A page-faulting thread suspends if receives -1 from pager page fault ipc.
  This is fine if pager is about to delete the thread, but it is not if
  it is a buggy pager.
- Need to find a way to completely get rid of suspended pager.
- A method of deleting suspended tasks could remedy both cases above.
This commit is contained in:
Bahadir Balban
2009-10-19 00:33:10 +03:00
parent c3b0399485
commit 9177166817
10 changed files with 162 additions and 36 deletions
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8
src/generic/container.c
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@@ -162,9 +162,10 @@ int init_first_pager(struct pager *pager,
space->pgd = current_pgd;
address_space_attach(task, space);
/* Initialize container relationships */
/* Initialize container/pager relationships */
pager->tcb = task;
task->pager = pager;
task->pagerid = task->tid;
task->container = cont;
task->cap_list_ptr = &pager->cap_list;
@@ -220,12 +221,13 @@ int init_pager(struct pager *pager, struct container *cont)
task->space = address_space_create(0);
/* Initialize container relationships */
/* Initialize container/pager relationships */
pager->tcb = task;
task->pager = pager;
task->container = cont;
task->cap_list_ptr = &pager->cap_list;
task->pagerid = task->tid;
task->cap_list_ptr = &pager->cap_list;
add_mapping_pgd(pager->start_lma, pager->start_vma,
page_align_up(pager->memsize),
MAP_USR_DEFAULT_FLAGS, TASK_PGD(task));