diff options
| author | Jim Mussared <jim.mussared@gmail.com> | 2022-06-29 14:40:41 +1000 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2022-07-12 16:17:19 +1000 |
| commit | daff597753e699bb9f485e69dea98f58b0c1432d (patch) | |
| tree | c1d62ee1d94f64e4bb999137b9143f2e1cc57b3a /py/asmthumb.c | |
| parent | 158f1794e87e7860f500622762ec14403ac32f03 (diff) | |
rp2: Run USB stack task exclusively from core 0.
The goal is to avoid a situation where core 1 is shut down while holding
the tinyusb spinlock, which could happen during soft reset if
mp_thread_deinit is called while core1 is running tud_task().
This also fixes a latent race where the two cores are competing to
decrement and compare `vm_hook_divisor` with no mem fence or atomic
protection -- only core0 will now do this.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Diffstat (limited to 'py/asmthumb.c')
0 files changed, 0 insertions, 0 deletions