Reset xNextTaskUnblockTime in task notify FromISR APIs #1111
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If a task is blocked waiting for a notification then xNextTaskUnblockTime might be set to the blocked task's timeout time. If the task is unblocked for a reason other than a timeout xNextTaskUnblockTime is normally left unchanged, because it will automatically get reset to a new value when the tick count equals xNextTaskUnblockTime. However if tickless idle is used it is important to enter sleep mode at the earliest possible time - so reset xNextTaskUnblockTime here to ensure it is updated at the earliest possible time. This was reported here - https://forums.freertos.org/t/the-vtaskgenericnotifygivefromisr-function-need-call-prvresetnexttaskunblocktime/21090 Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
aggarg added a commit to aggarg/FreeRTOS that referenced this pull request Aug 5, 2024
FreeRTOS/FreeRTOS-Kernel#1111 Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
2 tasks
kar-rahul-aws approved these changes Aug 5, 2024
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jefftenney added a commit to jefftenney/LPTIM-Tick that referenced this pull request Aug 5, 2024
AniruddhaKanhere approved these changes Aug 5, 2024
kar-rahul-aws pushed a commit to FreeRTOS/FreeRTOS that referenced this pull request Aug 6, 2024
* Unit test updates for kernel PR #1111 FreeRTOS/FreeRTOS-Kernel#1111 Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> * Fix doxygen check Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> --------- Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
moninom1 pushed a commit to moninom1/FreeRTOS that referenced this pull request Aug 13, 2024
* Unit test updates for kernel PR FreeRTOS#1111 FreeRTOS/FreeRTOS-Kernel#1111 Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> * Fix doxygen check Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> --------- Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
Zangetsu112 pushed a commit to Zangetsu112/FreeRTOS-evpp that referenced this pull request Aug 18, 2025
* Unit test updates for kernel PR FreeRTOS#1111 FreeRTOS/FreeRTOS-Kernel#1111 Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> * Fix doxygen check Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> --------- Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
moninom1 pushed a commit to moninom1/FreeRTOS-Kernel that referenced this pull request Sep 30, 2025
* Add Cmock test case for updates in vTaskResume API introduced in Kernel PR#865. * Update Kernel submodule pointer --------- Co-authored-by: Rahul Kar <karahulx@amazon.com>
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Description
If a task is blocked waiting for a notification then xNextTaskUnblockTime might be set to the blocked task's timeout time. If the task is unblocked for a reason other than a timeout xNextTaskUnblockTime is normally left unchanged, because it will automatically get reset to a new value when the tick count equals xNextTaskUnblockTime. However if tickless idle is used it is important to enter sleep mode at the earliest possible time - so reset xNextTaskUnblockTime here to ensure it is updated at the earliest possible time.
Test Steps
Tested the change on STM32H7 to ensure that xNextTaskUnblockTime gets reset after the call to vTaskNotifyGiveFromISR.
Checklist:
Related Issue
https://forums.freertos.org/t/the-vtaskgenericnotifygivefromisr-function-need-call-prvresetnexttaskunblocktime/21090
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