Other Parts Discussed in Thread: TMS320DM8148
Hello,
my application is sending messages between arm and dsp on the Davinci platform, using syslinks MessageQ. When the application exits, I always get this error:
[d0795004] *pgd=84c35011, *pte=00000000, *ppte=00000000 Internal error: Oops: 807 [#2] last sysfs file: /sys/devices/system/cpu/online Modules linked in: g_zero bufferclass_ti omaplfb pvrsrvkm g_ffs ti81xxfb vpss syslink ipv6 CPU: 0 Tainted: G D (2.6.37-kk-5050200 #2) PC is at remove_wait_queue+0x20/0x44 LR is at OsalSemaphore_pend+0x224/0x2a8 [syslink] pc : [<c008479c>] lr : [<bf0723ec>] psr: 80000093 sp : c4de3df8 ip : 80000013 fp : c4de3e04 r10: d0792008 r9 : 0007a120 r8 : d0795004 r7 : 0000c350 r6 : fffffe00 r5 : d0795000 r4 : c4de2000 r3 : 00100100 r2 : d0795004 r1 : c4de3e14 r0 : d0795004 Flags: Nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 84c98019 DAC: 00000015 Process DSPListenerThre (pid: 1361, stack limit = 0xc4de22e8) Stack: (0xc4de3df8 to 0xc4de4000) 3de0: c4de3e4c c4de3e08 3e00: bf0723ec c0084788 0007a120 c00687d4 00000004 00000001 c4cd3080 c006ac78 3e20: d0795004 d0795004 bf0680c4 00000000 00000000 c4de3ecc d0792000 d0792010 3e40: c4de3e8c c4de3e50 bf07bf08 bf0721d4 c4de3ecc 0007a120 c4de3e7c c4de3e68 3e60: c023fde8 00000000 c018f361 0000001b 0000001b 000003dc c4de2000 448d8d20 3e80: c4de3ef4 c4de3e90 bf0bde24 bf07bdb0 c018f361 448d8d20 d0792000 0007a120 3ea0: 00000000 007f78fc 00719824 45300ee8 c4de3edc a0000013 c4de3ee4 c4de3ec8 3ec0: c0243c84 c006884c c4de3f3c 00000000 00000000 c4d33a00 0000001b 0000001b 3ee0: 448d8d20 00000000 c4de3f04 c4de3ef8 c00d50d0 bf0bdcf8 c4de3f74 c4de3f08 3f00: c00d57e0 c00d50b4 00000000 00000000 448d8cf8 c4c9cf88 00000014 00000002 3f20: c6cfa5f0 00000000 c4de2000 00000000 c4de3f6c c4de3f40 c00c8934 c00f3824 3f40: 00000000 00000014 00000000 00000000 448d8d20 c018f361 0000001b c4d33a00 3f60: c4de2000 00000000 c4de3fa4 c4de3f78 c00d5878 c00d52ec c4de3fac 00000001 3f80: c03d6a84 448d8d20 c018f361 0082b20c 00000036 c0044fa8 00000000 c4de3fa8 3fa0: c0044e00 c00d582c 448d8d20 c018f361 0000001b c018f361 448d8d20 00000002 3fc0: 448d8d20 c018f361 0082b20c 00000036 007198dc 00719850 00719838 007198b8 3fe0: 007f9a68 448d8cf4 004ccaac 427a006c 20000010 0000001b 00000000 00000000 Backtrace: [<c008477c>] (remove_wait_queue+0x0/0x44) from [<bf0723ec>] (OsalSemaphore_pend+0x224/0x2a8 [syslink]) [<bf0721c8>] (OsalSemaphore_pend+0x0/0x2a8 [syslink]) from [<bf07bf08>] (MessageQ_get+0x164/0x290 [syslink]) r8:d0792010 r7:d0792000 r6:c4de3ecc r5:00000000 r4:00000000 [<bf07bda4>] (MessageQ_get+0x0/0x290 [syslink]) from [<bf0bde24>] (MessageQDrv_ioctl+0x138/0x9b8 [syslink]) [<bf0bdcec>] (MessageQDrv_ioctl+0x0/0x9b8 [syslink]) from [<c00d50d0>] (vfs_ioctl+0x28/0x44) [<c00d50a8>] (vfs_ioctl+0x0/0x44) from [<c00d57e0>] (do_vfs_ioctl+0x500/0x540) [<c00d52e0>] (do_vfs_ioctl+0x0/0x540) from [<c00d5878>] (sys_ioctl+0x58/0x7c) [<c00d5820>] (sys_ioctl+0x0/0x7c) from [<c0044e00>] (ret_fast_syscall+0x0/0x30) r8:c0044fa8 r7:00000036 r6:0082b20c r5:c018f361 r4:448d8d20 Code: f10c0080 e59f3020 e5910010 e591200c (e5802000) ---[ end trace 4ee6d56f5050c3ff ]---
The function that closes the connections is a slightly modified version of the syslink demos:
Void dspcom_close( )
{
Int status=0;
Osal_printf( "About to close DSP Communication\n");
switch (gbl_com_handles.cleanupCode) {
case 4:
{
Osal_printf( "About to delete message queue DSPToARMTeleQ\n");
status = MessageQ_delete (&gbl_com_handles.DSPToARMTeleQ);
if (status < 0)
{
Osal_printf ("MessageQ_delete DSPToARMTeleQ failed. Status [0x%xx]\n", status);
}
Osal_printf( "Message queue DSPToARMTeleQ deleted\n" );
Osal_printf( "About to delete message queue DSPToARMResultQ\n");
status = MessageQ_delete (&gbl_com_handles.DSPToARMResultQ);
if (status < 0)
{
Osal_printf ("MessageQ_delete DSPToARMResultQ failed. Status [0x%xx]\n", status);
}
Osal_printf( "Message queue DSPToARMResultQ deleted\n" );
}
case 3:
{
Osal_printf( "About to close message queue ARMToDSPTeleQId\n");
status = MessageQ_close (&gbl_com_handles.ARMToDSPTeleQId);
if (status < 0) {
Osal_printf ("MessageQ_close failed. Status [0x%xx]\n",
status);
}
else
{
Osal_printf ("MessageQ_close ARMToDSPTeleQId ok\n");
}
}
case 2:
{
Osal_printf("About to unregister heapId %d\n", gbl_app_info.heapId );
MessageQ_unregisterHeap (gbl_app_info.heapId);
Osal_printf("unregistered heapId %d\n", gbl_app_info.heapId );
Osal_printf("About to delete heapHandle %d\n", gbl_com_handles.heapHandle );
status = HeapMemMP_delete (&gbl_com_handles.heapHandle);
if (status < 0) {
Osal_printf ("HeapMemMP_delete failed. Status [0x%xx]\n",
status);
}
else
{
Osal_printf ("HeapMemMP_delete ok\n");
}
}
case 1:
{
Osal_printf("About to free shared memory heap\n");
Memory_free (gbl_com_handles.srHeap, gbl_com_handles.pSharedMem, gbl_com_handles.heapSize);
Osal_printf("Shared memory heap freed\n");
}
break;
}
Osal_printf ("Closed messageQs.\n");
Osal_printf( "About to unregister notify events\n");
Notify_unregisterEventSingle( DSP_PROC_ID, 0, DSPERROR_EVENT_NO );
Osal_printf( "Notify events unregistered\n");
} // END dspcom_close
The output of the exiting application is
About to close DSP Communication About to delete message queue DSPToARMTeleQ Message queue DSPToARMTeleQ deleted About to delete message queue DSPToARMResultQ Message queue DSPToARMResultQ deleted About to close message queue ARMToDSPTeleQId MessageQ_close ARMToDSPTeleQId ok About to unregister heapId 0 unregistered heapId 0 About to delete heapHandle 9227264 HeapMemMP_delete ok About to free shared memory heap Shared memory heap freed Closed messageQs. About to unregister notify events Notify events unregistered
I see nothing unusual in my output. Another thread suggests, that the heap is deleted twice or not even initialized. I'm sure the latter is not the case, since communication worked perfect. I have no idea, where the former could happen. Any suggestions?
TIA,
Markus
