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NOVA: call kill_thread of cpu_session

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If a thread has been deleted the thread object at the cpu_session was never
freed which caused the cpu_session quota to be exhausted as reported in
issue #150.

Fixes #150
This commit is contained in:
Alexander Boettcher 2012-07-13 12:48:27 +02:00 committed by Norman Feske
parent a08d54ad26
commit 938c7fa130
1 changed files with 7 additions and 4 deletions
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11
base-nova/src/base/thread/thread_nova.cc
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@ -79,15 +79,15 @@ void Thread_base::_init_platform_thread()
/* create thread at core */ /* create thread at core */
char buf[48]; char buf[48];
name(buf, sizeof(buf)); name(buf, sizeof(buf));
Thread_capability thread_cap = env()->cpu_session()->create_thread(buf); _thread_cap = env()->cpu_session()->create_thread(buf);
/* create new pager object and assign it to the new thread */ /* create new pager object and assign it to the new thread */
Pager_capability pager_cap = env()->rm_session()->add_client(thread_cap); Pager_capability pager_cap = env()->rm_session()->add_client(_thread_cap);
env()->cpu_session()->set_pager(thread_cap, pager_cap); env()->cpu_session()->set_pager(_thread_cap, pager_cap);
/* register initial IP and SP at core */ /* register initial IP and SP at core */
mword_t thread_sp = (mword_t)&_context->stack[-4]; mword_t thread_sp = (mword_t)&_context->stack[-4];
env()->cpu_session()->start(thread_cap, (addr_t)_thread_start, thread_sp); env()->cpu_session()->start(_thread_cap, (addr_t)_thread_start, thread_sp);
request_event_portal(pager_cap, _tid.exc_pt_sel, PT_SEL_STARTUP); request_event_portal(pager_cap, _tid.exc_pt_sel, PT_SEL_STARTUP);
request_event_portal(pager_cap, _tid.exc_pt_sel, PT_SEL_PAGE_FAULT); request_event_portal(pager_cap, _tid.exc_pt_sel, PT_SEL_PAGE_FAULT);
@ -115,6 +115,9 @@ void Thread_base::_deinit_platform_thread()
Nova::Rights rwx(true, true, true); Nova::Rights rwx(true, true, true);
addr_t utcb = reinterpret_cast<addr_t>(&_context->utcb); addr_t utcb = reinterpret_cast<addr_t>(&_context->utcb);
Nova::revoke(Nova::Mem_crd(utcb >> 12, 0, rwx)); Nova::revoke(Nova::Mem_crd(utcb >> 12, 0, rwx));
/* de-announce thread */
env()->cpu_session()->kill_thread(_thread_cap);
} }