FatalException (null pointer dereference) while driving.

[jkarvounis]

SPECIFIC ISSUE ENCOUNTERED

FatalException while driving.
Signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), Cause: null pointer dereference
Occurs when trying to use AR Core while driving. Does not occur while walking.

VERSIONS USED

• Android Studio: 3.3.2
• ARCore SDK for Android: 1.7.0
• Device manufacturer, model, and O/S: Google Pixel
• ARCore: 1.8.190311106
• Output of adb shell getprop ro.build.fingerprint: samsung/heroltexx/herolte:8.0.0/R16NW/G930FXXS4ESAF:user/release-keys

STEPS TO REPRODUCE THE ISSUE

1. Get in car while tracking with AR Core, driving consistently causes this issue. Some phone last longer than others, and don't always crash, but it's only while driving.

WORKAROUNDS (IF ANY)

None so far, don't drive

ADDITIONAL COMMENTS

Reproduced on Pixel 2, Samsung S9, Samsung S7, Nexus 6P

Here's the available logcat:

04-10 11:16:34.089 26475 26851 F libc : Fatal signal 11 (SIGSEGV), code 1, fault addr 0xdb0 in tid 26851 (trck03)
04-10 11:16:34.312 27539 27539 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
04-10 11:16:34.312 27539 27539 F DEBUG : Build fingerprint: 'samsung/heroltexx/herolte:8.0.0/R16NW/G930FXXS4ESAF:user/release-keys'
04-10 11:16:34.312 27539 27539 F DEBUG : Revision: '9'
04-10 11:16:34.312 27539 27539 F DEBUG : ABI: 'arm64'
04-10 11:16:34.312 27539 27539 F DEBUG : pid: 26475, tid: 26851, name: trck03 >>> com.logger.ngnloggerar <<<
04-10 11:16:34.312 27539 27539 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0xdb0
04-10 11:16:34.312 27539 27539 F DEBUG : Cause: null pointer dereference
04-10 11:16:34.312 27539 27539 F DEBUG : x0 0000000000121773 x1 00000000000000db x2 0000007a3b600000 x3 0000000000000000
04-10 11:16:34.312 27539 27539 F DEBUG : x4 0000000000000125 x5 0000007a3b725d64 x6 00000000000000db x7 00000000000000db
04-10 11:16:34.312 27539 27539 F DEBUG : x8 0000007a20a45000 x9 0000007a20a45000 x10 0000007a24e36010 x11 0000000000000003
04-10 11:16:34.312 27539 27539 F DEBUG : x12 0000007a3d010328 x13 0000000000000000 x14 0000007a25db9018 x15 00000000000001e0
04-10 11:16:34.312 27539 27539 F DEBUG : x16 0000007a6d1accc0 x17 0000007a6d14a4fc x18 0000000000000010 x19 0000007a3de04328
04-10 11:16:34.312 27539 27539 F DEBUG : x20 0000007a307f3468 x21 ccccccccccccccd0 x22 0000007a3de04310 x23 0000007a307f3450
04-10 11:16:34.312 27539 27539 F DEBUG : x24 0000007a22015848 x25 0000007a1c98d000 x26 00000000000000fa x27 00000000000000db
04-10 11:16:34.312 27539 27539 F DEBUG : x28 0000000000000000 x29 0000000000000028 x30 0000007a3f95ff04
04-10 11:16:34.312 27539 27539 F DEBUG : sp 0000007a3de03fd0 pc 0000007a3f95ff50 pstate 0000000060000000
04-10 11:16:34.329 27539 27539 F DEBUG :
04-10 11:16:34.329 27539 27539 F DEBUG : backtrace:
04-10 11:16:34.329 27539 27539 F DEBUG : #00 pc 0000000000297f50 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.329 27539 27539 F DEBUG : #1 pc 0000000000298a94 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.329 27539 27539 F DEBUG : #2 pc 00000000002935ec /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #3 pc 0000000000292bf8 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #4 pc 00000000002913d8 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #5 pc 000000000029008c /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #6 pc 000000000023a23c /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #7 pc 0000000000239ff4 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #8 pc 000000000023d8e0 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #9 pc 0000000000202520 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #10 pc 0000000000203138 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #11 pc 0000000000203334 /data/app/com.google.ar.core-Wjuu75Go9HiI2PcpOQ3Myg==/lib/arm64/libarcore_c.so
04-10 11:16:34.330 27539 27539 F DEBUG : #12 pc 0000000000067d04 /system/lib64/libc.so (_ZL15__pthread_startPv+200)
04-10 11:16:34.330 27539 27539 F DEBUG : #13 pc 000000000001f348 /system/lib64/libc.so (__start_thread+68)

[fredsa]

Looks like #291

[aliamohsin]

having the same issue also, using the shared camera feature, the app crash with this error also.