TDA4VM: Ipc Init fail when invoking twice appCommonInit() in a process.

HONGRUN ZHAO

Intellectual 555 points

Part Number: TDA4VM

In v7.03 RTOS+QNX plantform.

appCommonInit() is invoked twice in a process,

appCommonInit();

appCommonDeInit();

appCommonInit();

I do that in main_ipc.c file, as follow:

Power on EVM. run vx_app_arm_ipc.out, output log as follow:

over 4 years ago

0 Suman Anna over 4 years ago

TI__Guru** 118815 points

Hi Zhao,

Thanks for reporting the issue. We were able to reproduce it locally, and this appears to be a bug when running the test on QNX. I have filed a bug internally, and will follow up when we have a fix.

regards

Suman

0 HONGRUN ZHAO over 4 years ago in reply to Suman Anna

Intellectual 555 points

Hi Suman：

In our project application, developer found error when two threads invoke appCommonInit in a process.

0 Suman Anna over 4 years ago in reply to HONGRUN ZHAO

TI__Guru** 118815 points

Hi Hongrun,

Is this a different scenario than the one that you originally reported?

I do see that the appCommonInit() does have reference counting with pthread_mutex protection, so is very strange to see if you are seeing two parallel instance initialization traces. Only one of them should have gone through.

regards

Suman

0 chao yang over 4 years ago in reply to Suman Anna

Prodigy 30 points

Hi Suman：

when can you fix the first bug and which version to release on?

0 Suman Anna over 4 years ago in reply to chao yang

TI__Guru** 118815 points

Hi Chao Yang,

The fix will be part of our next 8.1 release which is couple of months away. FYI, 8.0 SDK release was made last week.

regards

Suman

+1 Suman Anna over 4 years ago in reply to Suman Anna

TI__Guru** 118815 points

Hi Hongrun,

Please try the following change and see if it fixes your issue.

In resmgr/ipc_qnx_rsmgr/usr/ipc_api.c

int32_t Ipc_deinit(void)
{
    int32_t  retVal = IPC_SOK;

    if (g_IpcFd > 0)
    {
        close(g_IpcFd);
+       g_IpcFd = -1;
    }

    return (retVal);
}

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TDA4VM: Ipc Init fail when invoking twice appCommonInit() in a process.