drivers: serial: nrfx_uarte: fix race condition in uart_rx_disable due to RXTO event #92783
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
github-actions
bot
added
area: UART
github-actions
bot
requested review from
anangl,
dcpleung,
jaz1-nordic,
kl-cruz,
magp-nordic,
masz-nordic and
nika-nordic
lanwer50
force-pushed
the
fix-uarte-rxto-race
branch
from
a8974d4 to
3f02d0d
Compare
nordic-krch
approved these changes
Jul 9, 2025
…event Fixes a race condition where uart_rx_disable() is interrupted by RXTO ISR, which can corrupt internal driver state. The IRQ lock is now taken earlier to ensure atomic access to RX buffer and flags. Tested on nRF52840 at 460800 baud using Modbus RTU. Fixes: zephyrproject-rtos#92777 Signed-off-by: Anouar Raddaoui <a.raddaoui@smight.com>
lanwer50
force-pushed
the
fix-uarte-rxto-race
branch
from
3f02d0d to
5ea1d25
Compare
|
dcpleung
approved these changes
Jul 14, 2025
anangl
approved these changes
Jul 15, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes a race condition where uart_rx_disable() is interrupted by RXTO ISR, which can corrupt internal driver state. The IRQ lock is now taken earlier to ensure atomic access to RX buffer and flags.
Tested on nRF52840 at 460800 baud using Modbus RTU.
Fixes: #92777