Tangram crash

[mjcunningham]

---

Build fingerprint: 'google/shamu/shamu:6.0.1/MOB30O/2920157:user/release-keys'
Revision: '0'
ABI: 'arm'
pid: 14665, tid: 14692, name: Thread-5570 >>> com.mapzen.erasermap <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x5
r0 00000005 r1 00000000 r2 00000002 r3 00000002
r4 9d732600 r5 9c37b014 r6 00000000 r7 00000000
r8 00000001 r9 00000002 sl 00000004 fp 9c37af54
ip 9ca50ab8 sp 9c37ad90 lr 9c8fec05 pc 9c8cb802 cpsr 60070030

backtrace:
#00 pc 001f7802 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (FT_GlyphLoader_CheckPoints+817)
#1 pc 0022ac01 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (TT_Load_Simple_Glyph+56)
#2 pc 0022bfe7 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (load_truetype_glyph+1078)
#3 pc 002267f1 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (tt_glyph_load+1884)
#4 pc 001f6195 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (FT_Load_Glyph+308)
#5 pc 00233fa5 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (af_latin_metrics_init+2428)
#6 pc 002358e3 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (af_autofitter_load_glyph+370)
#7 pc 001f624d /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (FT_Load_Glyph+492)
#8 pc 001c8d63 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN6alfons9GlyphData9loadGlyphEP11FT_FaceRec_j+34)
#9 pc 001c7d7f /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZNK6alfons8FontFace11createGlyphEj+22)
#10 pc 001ca963 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN6alfons10GlyphAtlas11createGlyphERKNS_4FontERKNS_8GlyphKeyERNS_10AtlasGlyphE+58)
#11 pc 001ca90b /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN6alfons10GlyphAtlas8getGlyphERKNS_4FontERKNS_8GlyphKeyERNS_10AtlasGlyphE+182)
#12 pc 001c99f9 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN6alfons9TextBatch9drawShapeERKNS_4FontERKNS_5ShapeERKN3glm5tvec2IfLNS7_9precisionE0EEEfRNS_11LineMetricsE+24)
#13 pc 001c9ec5 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN6alfons9TextBatch14drawShapeRangeERKNS_10LineLayoutEjjN3glm5tvec2IfLNS4_9precisionE0EEERNS_11LineMetricsE+84)
#14 pc 001084c9 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram11TextWrapper4drawERN6alfons9TextBatchERKNS1_10LineLayoutEjjNS_17TextLabelProperty5AlignEfRNS1_11LineMetricsE+832)
#15 pc 00106fed /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram11FontContext10layoutTextERNS_9TextStyle10ParametersERKNSt3__112basic_stringIcNS4_11char_traitsIcEENS4_9allocatorIcEEEERNS4_6vectorINS_9GlyphQuadENS8_ISE_EEEERNS4_6bitsetILj64EEERN3glm5tvec2IfLNSL_9precisionE0EEE+128)
#16 pc 00104a0f /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram16TextStyleBuilder12prepareLabelERNS_9TextStyle10ParametersENS_5Label4TypeE+998)
#17 pc 001037f9 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram16TextStyleBuilder16addFeatureCommonERKNS_7FeatureERKNS_8DrawRuleEb+64)
#18 pc 0012ff57 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram16DrawRuleMergeSet5applyERKNS_7FeatureERKNS_10SceneLayerERNS_12StyleContextERNS_11TileBuilderE+1578)
#19 pc 0010910b /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram11TileBuilder5buildENS_6TileIDERKNS_8TileDataERKNS_10DataSourceE+466)
#20 pc 000a90f3 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram8TileTask7processERNS_11TileBuilderE+46)
#21 pc 000a9795 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (_ZN7Tangram10TileWorker3runEPNS0_6WorkerE+920)
#22 pc 000a9ee3 /data/app/com.mapzen.erasermap-1/lib/arm/libtangram.so (ZNSt3__114__thread_proxyINS_5tupleIJMN7Tangram10TileWorkerEFvPNS3_6WorkerEEPS3_S5_EEEEEPvSA+78)
#23 pc 0003f45f /system/lib/libc.so (_ZL15__pthread_startPv+30)
#24 pc 00019b43 /system/lib/libc.so (__start_thread+6)

[mjcunningham]

cc @tallytalwar @blair1618

[tallytalwar]

Somewhere deep in alfons code. Forwarding this to @karimnaaji or @hjanetzek.

[matteblair]

Did this crash occur immediately when the map began to draw?

I wonder if it's possible that the configuration of default fonts is different on the new Nexus devices. That would be easy enough to check by listing the fonts directory and XML file.

[mjcunningham]

One crash happened right away, it might have been this one.

[hjanetzek]

Could you run tangram under valgrind? All these segv look rather like memory corruption to me.

It's probably a bit cumbersome to setup - but it would be very helpful in the long run:
http://valgrind.org/docs/manual/dist.readme-android.html

[ecgreb]

Closing in favor of #707.