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test: Relocate posix mqueue receive buffer

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For platforms that select Kconfig option CONFIG_KERNEL_COHERENCE,
the receive buffer used in mq_timedreceive() must not be on the
stack. This is because the k_msgq that underlies the POSIX mqueue
will attempt to perform a direct to buffer copy from the sender
when there is a waiting reader.

Fixes #60796

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
This commit is contained in:
Peter Mitsis 2023-07-25 14:10:22 -04:00 committed by Carles Cufí
parent 0ae1e37ead
commit 38352ae13c
1 changed files with 10 additions and 1 deletions
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11
tests/posix/common/src/mqueue.c
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@ -21,8 +21,18 @@
K_THREAD_STACK_ARRAY_DEFINE(stacks, N_THR, STACKSZ);
char queue[16] = "server";
char send_data[MESSAGE_SIZE] = "timed data send";
/*
* For platforms that select CONFIG_KERNEL_COHERENCE, the receive buffer can
* not be on the stack as the k_msgq that underlies the mq_timedsend() will
* copy directly to the receiver's buffer when there is already a waiting
* receiver.
*/
char rec_data[MESSAGE_SIZE];
void *sender_thread(void *p1)
{
mqd_t mqd;
@ -44,7 +54,6 @@ void *sender_thread(void *p1)
void *receiver_thread(void *p1)
{
mqd_t mqd;
char rec_data[MESSAGE_SIZE];
struct timespec curtime;
mqd = mq_open(queue, O_RDONLY);