I am debugging a crash issue reported in the Android Codec2 integration of an audio decoder. The decoder component starts as a lazy service. Please see the source code below,
int main()
{
ALOGE("Lazy Service starting...");
::android::hardware::configureRpcThreadpool(/*threads*/ 8, /*willJoin*/ true);
using namespace ::android::hardware::media::c2::V1_0;
ALOGE("Instantiating Codec2's IComponentStore service...");
android::sp<IComponentStore> store(
new utils::ComponentStore(android::MyComponentStore::Create()));
if (store == nullptr) {
ALOGE("Cannot create Codec2's IComponentStore service.");
}
else if (store->registerAsService("default3") != android::OK) {
ALOGE("Cannot register Codec2's IComponentStore service default3.");
} else {
ALOGI("Codec2's IComponentStore default3 service created.");
}
::android::hardware::joinRpcThreadpool();
ALOGE("Lazy Service stopped...");
return 0;
}
The decoder service is running while playing media files through an Android application. The audio and video playback is working correctly.
But I see a crash dump in the adb log messages when the media playback stops(when I click the ‘back’ button to exit from the player window)
--------- beginning of crash
06-10 23:18:42.875 1046 4195 4222 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Build fingerprint: 'Android/aosp_panther/panther:14/UP1A.231005.007.A1/eng.audio.20240510.161544:userdebug/test-keys'
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Revision: 'MP1.0'
06-10 23:18:42.875 1046 4195 4222 F DEBUG : ABI: 'arm64'
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Timestamp: 2024-06-10 23:18:42.779663327+0530
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Process uptime: 28s
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Cmdline: /vendor/bin/hw/[email protected]
06-10 23:18:42.875 1046 4195 4222 F DEBUG : pid: 4195, tid: 4222, name: HwBinder:4195_4 >>> /vendor/bin/hw/[email protected] <<<
06-10 23:18:42.875 1046 4195 4222 F DEBUG : uid: 1046
06-10 23:18:42.875 1046 4195 4222 F DEBUG : tagged_addr_ctrl: 0000000000000001 (PR_TAGGED_ADDR_ENABLE)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : signal 0 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
06-10 23:18:42.875 1046 4195 4222 F DEBUG : Abort message: 'terminating'
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x0 0000000000000000 x1 000000000000107e x2 0000000000000006 x3 00000070e6d55190
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x4 fefefefeff666d68 x5 fefefefeff666d68 x6 fefefefeff666d68 x7 7f7f7f7f7f7f7f7f
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x8 00000000000000f0 x9 0000007387a77050 x10 0000000000000001 x11 0000007387ac0b60
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x12 000000738a41c020 x13 000000007fffffff x14 00000000000547f6 x15 00000004077fedd6
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x16 0000007387b2ccf8 x17 0000007387b09470 x18 00000070e6ac0000 x19 0000000000001063
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x20 000000000000107e x21 00000000ffffffff x22 00000070e6d55300 x23 00000070e6d552c0
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x24 ffffff80ffffffc8 x25 0000007387b2ef38 x26 0000000000000364 x27 0000000000000362
06-10 23:18:42.875 1046 4195 4222 F DEBUG : x28 0000000000005000 x29 00000070e6d55210
06-10 23:18:42.875 1046 4195 4222 F DEBUG : lr 0000007387ab1178 sp 00000070e6d55170 pc 0000007387ab11a4 pst 0000000000001000
06-10 23:18:42.875 1046 4195 4222 F DEBUG : 20 total frames
06-10 23:18:42.875 1046 4195 4222 F DEBUG : backtrace:
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #00 pc 000000000005c1a4 /apex/com.android.runtime/lib64/bionic/libc.so (abort+164) (BuildId: 19c32900d9d702c303d2b4164fbba76c)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #01 pc 00000000000501b4 /apex/com.android.vndk.v34/lib64/libc++.so (abort_message+276) (BuildId: 0e7a8aa3d376c1c6544d64065247b1a8)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #02 pc 0000000000064bf8 /apex/com.android.vndk.v34/lib64/libc++.so (demangling_terminate_handler() (.__uniq.205383134706309982814331919004001075825)+72) (BuildId: 0e7a8aa3d376c1c6544d64065247b1a8)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #03 pc 00000000000650c8 /apex/com.android.vndk.v34/lib64/libc++.so (std::__terminate(void (*)())+8) (BuildId: 0e7a8aa3d376c1c6544d64065247b1a8)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #04 pc 0000000000065080 /apex/com.android.vndk.v34/lib64/libc++.so (std::terminate()+32) (BuildId: 0e7a8aa3d376c1c6544d64065247b1a8)
06-10 23:18:42.875 1046 4195 4222 F DEBUG : #05 pc 00000000000aa818 /apex/com.android.vndk.v34/lib64/libc++.so (std::__1::thread::~thread()+24) (BuildId: 0e7a8aa3d376c1c6544d64065247b1a8)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #06 pc 0000000000029b14 /vendor/lib64/[email protected] (android::hardware::media::c2::V1_0::utils::InputBufferManager::~InputBufferManager()+20) (BuildId: 64cb2eacaa9e46287c6dee01e446565f)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #07 pc 00000000000cd8f0 /apex/com.android.runtime/lib64/bionic/libc.so (__cxa_finalize+144) (BuildId: 19c32900d9d702c303d2b4164fbba76c)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #08 pc 00000000000bfa98 /apex/com.android.runtime/lib64/bionic/libc.so (exit+24) (BuildId: 19c32900d9d702c303d2b4164fbba76c)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #09 pc 0000000000074070 /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::details::ClientCounterCallback::tryShutdownLocked()+320) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #10 pc 0000000000073c6c /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::details::ClientCounterCallback::onClients(android::sp<android::hidl::base::V1_0::IBase> const&, bool)+300) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #11 pc 000000000009a96c /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hidl::manager::V1_2::BnHwClientCallback::_hidl_onClients(android::hidl::base::V1_0::BnHwBase*, android::hardware::Parcel const&, android::hardware::Parcel*, std::__1::function<void (android::hardware::Parcel&)>)+332) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #12 pc 000000000009acf8 /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hidl::manager::V1_2::BnHwClientCallback::onTransact(unsigned int, android::hardware::Parcel const&, android::hardware::Parcel*, unsigned int, std::__1::function<void (android::hardware::Parcel&)>)+88) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #13 pc 00000000000ac41c /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::BHwBinder::transact(unsigned int, android::hardware::Parcel const&, android::hardware::Parcel*, unsigned int, std::__1::function<void (android::hardware::Parcel&)>)+156) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #14 pc 0000000000052874 /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::IPCThreadState::executeCommand(int)+996) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #15 pc 000000000006669c /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::IPCThreadState::joinThreadPool(bool)+668) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #16 pc 00000000000705f8 /apex/com.android.vndk.v34/lib64/libhidlbase.so (android::hardware::PoolThread::threadLoop()+24) (BuildId: 3797c42cd4e3a5ee79f1e760e1466d51)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #17 pc 000000000000fe18 /apex/com.android.vndk.v34/lib64/libutils.so (android::Thread::_threadLoop(void*)+584) (BuildId: 625583f4cd601a4f751800f91b840e76)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #18 pc 00000000000c9ccc /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+204) (BuildId: 19c32900d9d702c303d2b4164fbba76c)
06-10 23:18:42.876 1046 4195 4222 F DEBUG : #19 pc 000000000005db00 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: 19c32900d9d702c303d2b4164fbba76c)
Detailed log message is available here
Seems like the problem is occurring while the thread join. Could you please suggest to me any possible solution to fix this issue?
Here is the service’s .rc file.
service vendor-media-c2-hal-1-0-audiocodec /vendor/bin/hw/[email protected]
interface [email protected]::IComponentStore default3
class hal
oneshot
disabled
user mediacodec
group mediadrm camera drmrpc system
ioprio rt 4
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