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core: destruction order of PD session members

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This patch addresses a corner case revealed by the resource_request test
on seL4 after changing the child-destruction handling with commit "base:
close PD on 'close_all_sessions'". During the destruction of the PD
session, the backing store (session-local RAM dataspace factory) of the
signal broker's slab was destroyed before destructing the signal broker.
Instantiating the signal broker after the RAM dataspace factory fixes
the destruction order.
This commit is contained in:
Norman Feske 2018-07-02 11:53:18 +02:00
parent c18bee3d5b
commit 39e6dd3d25
1 changed files with 2 additions and 2 deletions
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repos/base/src/core/include/pd_session_component.h
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@ -51,8 +51,8 @@ class Genode::Pd_session_component : public Session_object<Pd_session>
Constrained_core_ram _constrained_core_ram_alloc;
Sliced_heap _sliced_heap;
Capability<Parent> _parent { };
Signal_broker _signal_broker;
Ram_dataspace_factory _ram_ds_factory;
Signal_broker _signal_broker;
Rpc_cap_factory _rpc_cap_factory;
Native_pd_component _native_pd;
@ -133,9 +133,9 @@ class Genode::Pd_session_component : public Session_object<Pd_session>
_constrained_md_ram_alloc(*this, _ram_quota_guard(), _cap_quota_guard()),
_constrained_core_ram_alloc(_ram_quota_guard(), _cap_quota_guard(), core_mem),
_sliced_heap(_constrained_md_ram_alloc, local_rm),
_signal_broker(_sliced_heap, signal_ep, signal_ep),
_ram_ds_factory(ep, phys_alloc, phys_range, local_rm,
_constrained_core_ram_alloc),
_signal_broker(_sliced_heap, signal_ep, signal_ep),
_rpc_cap_factory(_sliced_heap),
_native_pd(*this, args),
_address_space(ep, _sliced_heap, pager_ep,