sched/wqueue: fix issue about worker can't wake up thread before work_thread running #9007
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What is the impact on LPWORK? |
Same impact for lpwork and hpwork. Because the priority of AppBringup is higher lpwork and hpwork. |
pkarashchenko
approved these changes
Apr 14, 2023
|
Please rebase |
…_thread running
Problem:
AppBringup task in default priority 240 ->
board_late_initialize() ->
some driver called work_queue() ->
nxsem_post(&(wqueue).sem) failed because sem_count is 0
hp work_thread in default priority 224 ->
nxsem_wait_uninterruptible(&wqueue->sem);
so hp_work_thread can't wake up, worker can't run immediately.
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
xiaoxiang781216
approved these changes
Apr 18, 2023
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Summary
sched/wqueue: fix issue about worker can't wake up thread before work_thread running_thread running
Problem:
AppBringup task in default priority 240 ->
board_late_initialize() ->
some driver called work_queue() ->
nxsem_post(&(wqueue).sem) failed because sem_count is 0
hp work_thread in default priority 224 ->
nxsem_wait_uninterruptible(&wqueue->sem);
so hp_work_thread can't wake up, worker can't run immediately.
Signed-off-by: dongjiuzhu1 dongjiuzhu1@xiaomi.com
Impact
start work queue at board_late_initialize step.
Testing
local test