If an RM client gets dissolved the RM server tries to first
dissolve and then destruct the according pager object. As pager objects
previously cancelled unresolved faults only in destructor the dissolve
operation blocked forever when an unresolved fault existed.
As every pager object should get dissolved before it gets destructed
(signal-context complains otherwise) no more unresolved-fault cancelling
is needed in the destructor.
ref #989
As synchronization of signal contexts is now the users business instead of
cores and the signal framework ensures that every context of a receiver gets
synchronously destructed before the destruction of the receiver itself
synchronization and thus blocking at the destruction of a kernel
receiver-object isn't necessary anymore.
ref #989
Kernel::signal_context_kill can be used by any program to halt the processing
of a signal context synchronously to prevent broken refs when core destructs
the according kernel object. In turn, Kernel::bin_signal_context doesn't block
anymore and destructs a signal context no matter if there are unacknowledged
signals. This way, cores entrypoint doesn't depend on signal acks of a
untrustworthy client anymore.
ref #989
In the future bin_* means the direct destruction of a kernel object
without any blocking. kill_* in contrast is used for bringing a
kernel object such as signal contexts synchronized into a sleeping
state from where they can be destructed without the risk of getting
broken refs in userland.
ref #989
To remap its UTCB to its context area later, a main thread needs
to know the according dataspace capability. This is done through
the start-info it receives from its creator at startup.
ref #989
I have no idea where the previous default alignment = 2 in the unsynchronized
singleton came from but as at least the Arndale IC-driver in base-hw needs an
alignment of 4 = address width, unmanaged singleton now uses sizeof(addr_t)
as default alignment.
ref #989
An unmanaged singleton is a singleton object that isn't
constructed or destructed implicitly through the C++ runtime
enviroment. The new header provides a helper to create such objects
and is located in src/base/include.
ref #989
* Increase entrypoint stack size for part_blk server,
since it crashes on 64 bit
* Consider packet alignment in bulk buffer size calculation of test-blk-cli
* allow to handle a maximum of packets in parallel
that fits free slots in the ack queue
* stop processing packets, when the driver can't handle
more requests in parallel, and resume packet handling,
when the driver is ready again
As hw_arndale is a bit slower than foc_arm and spawn_serial timing
calculation has changed in general, timeouts of noux_tool_chain_auto test
must be adjusted.
fix#996
The Genode-specific implementation of 'QWaitCondition' contains a race
condition which can make the 'qt5_samegame' application hang on Fiasco.OC.
Since most of the pthread synchronization functions needed by the
UNIX-specific implementation of 'QWaitCondition' and 'QMutex' are
available now, we can use these now instead of fixing and keeping
the Genode-specific implementation.
Fixes#993.
