topic Re: FATAL 11 when trying to get Features Table from Geodatabase in .NET Maps SDK Questions

FATAL 11 when trying to get Features Table from Geodatabase

NathanWestfall1 — Thu, 31 May 2018 18:34:37 GMT

From time to time, I get in our Xamarin.Android app a fatal 11 when loading a features table.

Here is the C# code

public static Esri.ArcGISRuntime.Data.GeodatabaseFeatureTable GetStreetFeatureTable(Esri.ArcGISRuntime.Data.Geodatabase gdb, string tableName)
{
GeodatabaseFeatureTable table = gdb.GeodatabaseFeatureTable(tableName);

  if (table == null)
  {
  table = gdb.GeodatabaseFeatureTable(0);
    }

    return table;
}

Here's the crash

--------- beginning of crash

05-31 09:26:13.559 23763 23991 F libc : Fatal signal 11 (SIGSEGV), code 1, fault addr 0x8 in tid 23991 (Thread-3804)

05-31 09:26:13.616 162 162 I DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

05-31 09:26:13.616 162 162 I DEBUG : Build fingerprint: 'Android/:eng/release-keys'

05-31 09:26:13.616 162 162 I DEBUG : Revision: '0'

05-31 09:26:13.616 162 162 I DEBUG : ABI: 'arm'

05-31 09:26:13.616 162 162 I DEBUG : pid: 23763, tid: 23991, name: Thread-3804 >>> APK_NAME <<<

05-31 09:26:13.616 162 162 I DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x8

05-31 09:26:13.626 162 162 I DEBUG : r0 ba96dbe8 r1 00000000 r2 8ddff4a0 r3 bac3c718

05-31 09:26:13.626 162 162 I DEBUG : r4 00000000 r5 ba95f950 r6 00000000 r7 00000000

05-31 09:26:13.626 162 162 I DEBUG : r8 00000000 r9 ba96dbe8 sl 8ddff4dc fp ba9a8208

05-31 09:26:13.626 162 162 I DEBUG : ip 9947cefd sp 8ddff448 lr 9855df11 pc 9855dec4 cpsr 800f0030

05-31 09:26:13.626 162 162 I DEBUG :

05-31 09:26:13.626 162 162 I DEBUG : backtrace:

05-31 09:26:13.626 162 162 I DEBUG : #00 pc 0089aec4 /data/app/APK/lib/arm/libruntimecore.so

05-31 09:26:13.626 162 162 I DEBUG : #01 pc 0089af0d /data/app/APK/lib/arm/libruntimecore.so

05-31 09:26:13.626 162 162 I DEBUG : #02 pc 0089b177 /data/app/APK/lib/arm/libruntimecore.so

05-31 09:26:13.626 162 162 I DEBUG : #03 pc 00741ffb /data/app/APK/lib/arm/libruntimecore.so (RT_Geodatabase_getGeodatabaseFeatureTables+50)

05-31 09:26:13.626 162 162 I DEBUG : #04 pc 000d6fd7 /data/app/APK/lib/arm/libRuntimeCoreNet.so (CoreRT_Geodatabase_getGeodatabaseFeatureTables+26)

05-31 09:26:13.626 162 162 I DEBUG : #05 pc 0000e944 <unknown>

And here is the build enviroment

Visual Studio 15.7.1
Xamarin 4.10.0.442
Xamarin.Android SDK 8.3.0.19
JDK 1.8.0_172 (32 bit version)
Android SDK Tools 25.2.5
Android SDK Platform-tools 27.0.1
Android SDK Build-tools 25.0.3, 23.0.3
SDK Platforms Installed
8.0 (API 26)
7.1.1 (API 25)
6.0 (API 23)

Esri Runtime 100.2.1

The only thing I can think of that I might be able to prevent, is calling this function from 2 threads at the same time. We have different feature layers we use and it is possible that from time to time two threads could call it at the same time.

Re: FATAL 11 when trying to get Features Table from Geodatabase

NathanWestfall — Sat, 11 Dec 2021 18:10:38 GMT

Here's another recent crash

--------- beginning of crash  06-11 14:15:32.688 16446 16669 F libc    : Fatal signal 7 (SIGBUS), code 1, fault addr 0x1b in tid 16669 (app.name)  06-11 14:15:32.796   153   153 I DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***  06-11 14:15:32.796   153   153 I DEBUG   : Build fingerprint: 'Android:eng/release-keys'  06-11 14:15:32.796   153   153 I DEBUG   : Revision: '0'  06-11 14:15:32.796   153   153 I DEBUG   : ABI: 'arm'  06-11 14:15:32.796   153   153 I DEBUG   : pid: 16446, tid: 16669, name: app.name >>> app.name <<<  06-11 14:15:32.796   153   153 I DEBUG   : signal 7 (SIGBUS), code 1 (BUS_ADRALN), fault addr 0x1b  06-11 14:15:32.819   153   153 I DEBUG   :     r0 0000001b  r1 b92d4894  r2 b9dc5b4c  r3 b6e065f1  06-11 14:15:32.819   153   153 I DEBUG   :     r4 00000020  r5 b96c61f8  r6 b9982c0c  r7 b9c16ae8  06-11 14:15:32.819   153   153 I DEBUG   :     r8 b96c6278  r9 b9c16af0  sl 8dedfabc  fp 8dedfab8  06-11 14:15:32.819   153   153 I DEBUG   :     ip 8dedf828  sp 8dedf898  lr 98c2ff4b  pc 98c2e520  cpsr 000f0030  06-11 14:15:32.819   153   153 I DEBUG   :   06-11 14:15:32.819   153   153 I DEBUG   : backtrace:  06-11 14:15:32.819   153   153 I DEBUG   :     #00 pc 01051520  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #01 pc 01052f47  /data/app/app.name/lib/arm/libruntimecore.so (_ZNSt6vectorISt8weak_ptrISt8functionIFvN16Esri_runtimecore11Geodatabase8Database21Transaction_operationEEEESaIS8_EE19_M_emplace_back_auxIJSt10shared_ptrIS7_EEEEvDpOT_+98)  06-11 14:15:32.819   153   153 I DEBUG   :     #02 pc 0089ca11  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #03 pc 0089cdb1  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #04 pc 0083215f  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #05 pc 00b05165  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #06 pc 00b05d01  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #07 pc 01774357  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #08 pc 01388405  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #09 pc 01392b17  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #10 pc 01393037  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #11 pc 0139331d  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #12 pc 01392c67  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #13 pc 017de7d3  /data/app/app.name/lib/arm/libruntimecore.so  06-11 14:15:32.819   153   153 I DEBUG   :     #14 pc 0001659b  /system/lib/libc.so (__pthread_start(void*)+30)  06-11 14:15:32.819   153   153 I DEBUG   :     #15 pc 000144c3  /system/lib/libc.so (__start_thread+6)

Re: FATAL 11 when trying to get Features Table from Geodatabase

dotMorten_esri — Wed, 20 Jun 2018 22:03:03 GMT

> it is possible that from time to time two threads could call it at the same time.

Did you try this with a lock statement to try and prevent it from doing this from multiple threads? Did it help?

Is there any way you can provide us with a reproducer? The above unfortunately doesn't give me much to go on.