hi, all
by further debuging, I found this problem was cased by calling
sqlite3_open_v2(path8, &handle, sqliteFlags, NULL) function in dbopen
of frameworks\base\core\jni\android_database_SQLiteDatabase.cpp file,
it not crash directly in the sqlite3_open_v2 function, but died some
where
after calling sqlite3_open_v2, if I replaced the sqlite3_open_v2
function with the following code:
for(int i=0;i<10000000;i++)
LOGI("useless code");
process will not die in the for loop at least, so I think the
sqlite3_open_v2 function is the evil, but I do not know what to do
next!
BTW, the linux kernel is 64bit and android filesystem is 32bit, did it
affect?
On 1月11日, 上午12时33分, 李晖 <lihui205...@gmail.com> wrote:
> hi, all
> I am porting android to loongson2f, when the System Server bring up the
> Account Manager
>
> Service, the System Service process was terminated by signal 11, by adding
> log to the source code,
>
> I found it died in the JNI C code, following is the calling stack:
>
> > ServerThread:run
> > PowerManagerService()
> > validateAccounts()
> > DatabaseHelper::getWritableDatabase()
> > SQLiteOpenHelper::getWritableDatabase()
> > ContextImpl::openOrCreateDatabase()
> > SQLiteDatabase.openOrCreateDatabase()
> > SQLiteDatabase.openDatabase()
> > SQLiteDatabase() //Constructor
> > dbopen() //JNI C code implemented
> > in "frameworks\base\core\jni\android_database_SQLiteDatabase.cpp
>
> I am sure the System Service died in the dbopen code as I called the Log.i
> function millions time
>
> before the dbopen, log are all printed correctly, and I also added the
> following the code at the
>
> end of dbopen function:
>
> > for(int i=0; i<1000; i++)
> > {
> > fprintf(fp, "dbopen %d\n", i);
> > fflush(fp);
> > }
>
> not all logs are recored, if I removes the for loop at the end of dbopen
> function, the system will die some statement after the dbopen call, so, I
> think the system died in this function, but I don't known how to fix it,
> did it have to do with the JNI system?
>
> any suggestion or tips will be appreciated!
> thanks!
>
> Best Regards
> -------------------------------------------------------------------
> -------------------------------------------------------------------
> 北京航空航天大学大学嵌入式系统实验室
> 新主楼G座1028室
> 李晖
> MSN:lihui205...@163.com
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