When the last WorkItem is deleted, it is removed from a work queue and the
queue is being stopped. But, the queue itself might get deleted in the middle,
in a higher priority thread than where the WorkItem deletion was performed from
If the WorkQueue::Detach accesses the member variables after this, there is memory
corruption
This happens in particular when launching i2c or spi devices in
I2CSPIDriverBase::module_start:
- The "initializer" is deleted when the instance is not found and the iterator
while loop continues.
- The workqueue is deleted in the middle of "initializer" deletion when the
WorkQueueRunner returns.
This prevents deletion of the WorkQueue before the Detach has been finished,
in the specific case that the ::Detach triggers the deletion
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
nxp_ucans32k146:Relocation for Bootloader
nxp_ucans32k146:can_boot enable CAN
nxp_ucans32k146:Save Space use Non Optimize memcpy
nxp_ucans32k146:Increase to 24K
nxp/ucans32k146:Canbootloader LED Driver
nxp_ucans32k146:Can bootloader shut down CAN
nxp_ucans32k146:Use NVMEEPROM for Paramaters
nxp_ucans32k146:Use bootloader AppDescriptor
px4 mtd:Support onchip emulated eeprom
- store parameter type and if volatile separately (saves kilobytes of flash)
- use Bitset for tracking active and changed parameters
- use atomic for autosave_enabled flag
- compile at ${MAX_CUSTOM_OPT_LEVEL} (-O2 on non flash constrained boards)
* drivers/uavcannode: Add a simple parameter server
Added a simple parameter server using the libuavcan ParamServer class.
The parameter server exposes a selection of PX4 parameters via UAVCAN.
Also, Increased the stack size of the uavcan work queue in order to
prevent a stack overflow.
* uavcannode: fetch all active PX4 parameters
Co-authored-by: Kenneth Thompson <ken@flyvoly.com>
- control allocation module with multirotor, VTOL standard, and tiltrotor support
- angular_velocity_controller
- See https://github.com/PX4/PX4-Autopilot/pull/13351 for details
Co-authored-by: Silvan Fuhrer <silvan@auterion.com>
Co-authored-by: Roman Bapst <bapstroman@gmail.com>
- the purpose is to ensure that every WorkItem (and WorkItems scheduled
by WorkItems) is allowed to run to completion every step
- per workqueue register a lockstep component whenever a work item is
added (if not already registered)
- once the work queue is empty unregister component
- ekf2 can now run in multi-instance mode (currently up to 9 instances)
- in multi mode all estimates are published to alternate topics (eg estimator_attitude instead of vehicle_attitude)
- new ekf2 selector runs in multi-instance mode to monitor and compare all instances, selecting a primary (eg N x estimator_attitude => vehicle_attitude)
- sensors module accel & gyro inconsistency checks are now relative to the mean of all instances, rather than the current primary (when active ekf2 selector is responsible for choosing primary accel & gyro)
- existing consumers of estimator_status must check estimator_selector_status to select current primary instance status
- ekf2 single instance mode is still fully supported and the default
Co-authored-by: Paul Riseborough <gncsolns@gmail.com>
Jukka Laitinen
David Sidrane
Beat Küng
Daniel Agar
echoG
Peter van der Perk
Lorenz Meier
Julien Lecoeur
Julian Oes