title: Android Lollipop 5.1: Fatal signal 11 (SIGSEGV), code 2, fault addr 0x9e985ff8 in tid 4093 (RenderThread) / when using lot of nine patch graphics
body: <p>I'm using quite a large amount of NinePatchDrawables in the app views. The underlying Bitmaps are cached, so there is no memory issue. </p>
  
  <p>While preparing/drawing the screen, the app crashes with the following log entry:</p>
  
  <pre><code>04-03 19:37:42.651: A/libc(4064): Fatal signal 11 (SIGSEGV), code 2, fault addr 0x9e985ff8 in tid 4093 (RenderThread)
  </code></pre>
  
  <p>The issue just popped up with the latest Android 5.1 builds (LMY47D, LMY47E, LMY47I).
  The same views with the same graphics worked well on earlier Android Versions up to 5.0.2 (LRX22C).
  I'm getting the issue on the Nexus 6, so far I don't had the chance to test it on any other device.</p>
  
  <p>The crash occurs only when using a large amount of NinePatchDrawables, especially when layering them on top of each other. When I load exactly the same graphics (just for testing) as plain png's, it works without problems. Also other views with a smaller amount of NinePatchDrawables work without problems.</p>
  
  <p>The same issue was existing on earlier Android versions (5.0.2 or older), but it just happened with at least three or four times as much NinePatchDrawables per screen.</p>
  
  <pre><code>04-03 19:37:42.651: A/libc(4064): Fatal signal 11 (SIGSEGV), code 2, fault addr 0x9e985ff8 in tid 4093 (RenderThread)
  04-03 19:37:42.752: I/DEBUG(354): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
  04-03 19:37:42.752: I/DEBUG(354): Build fingerprint: 'google/shamu/shamu:5.1/LMY47D/1743759:user/release-keys'
  04-03 19:37:42.752: I/DEBUG(354): Revision: '33696'
  04-03 19:37:42.752: I/DEBUG(354): ABI: 'arm'
  04-03 19:37:42.752: I/DEBUG(354): pid: 4064, tid: 4093, name: RenderThread  &gt;&gt;&gt; com.xyz.myapp &lt;&lt;&lt;
  04-03 19:37:42.752: I/DEBUG(354): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x9e985ff8
  04-03 19:37:42.794: I/DEBUG(354):     r0 b4a23880  r1 aee24000  r2 00000000  r3 00000001
  04-03 19:37:42.794: I/DEBUG(354):     r4 9e986064  r5 aec3c658  r6 00000001  r7 aec2c570
  04-03 19:37:42.794: I/DEBUG(354):     r8 00000003  r9 00000001  sl 0000001c  fp aee24000
  04-03 19:37:42.794: I/DEBUG(354):     ip aadb4948  sp 9e985ff8  lr aad072db  pc aac954a2  cpsr a0030030
  04-03 19:37:42.795: I/DEBUG(354): backtrace:
  04-03 19:37:42.795: I/DEBUG(354):     #00 pc 001024a2  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxResource::PrepareGpuAccess(EsxContext*, unsigned int, EsxAccessType)+1)
  04-03 19:37:42.795: I/DEBUG(354):     #01 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.795: I/DEBUG(354):     #02 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.795: I/DEBUG(354):     #03 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.795: I/DEBUG(354):     #04 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.796: I/DEBUG(354):     #05 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.796: I/DEBUG(354):     #06 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.796: I/DEBUG(354):     #07 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.796: I/DEBUG(354):     #08 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.796: I/DEBUG(354):     #09 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.796: I/DEBUG(354):     #10 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.796: I/DEBUG(354):     #11 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.797: I/DEBUG(354):     #12 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.797: I/DEBUG(354):     #13 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.797: I/DEBUG(354):     #14 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.797: I/DEBUG(354):     #15 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.797: I/DEBUG(354):     #16 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.797: I/DEBUG(354):     #17 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.798: I/DEBUG(354):     #18 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.798: I/DEBUG(354):     #19 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.798: I/DEBUG(354):     #20 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.798: I/DEBUG(354):     #21 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.798: I/DEBUG(354):     #22 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.798: I/DEBUG(354):     #23 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.798: I/DEBUG(354):     #24 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.799: I/DEBUG(354):     #25 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.799: I/DEBUG(354):     #26 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.799: I/DEBUG(354):     #27 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.799: I/DEBUG(354):     #28 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.799: I/DEBUG(354):     #29 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.799: I/DEBUG(354):     #30 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.799: I/DEBUG(354):     #31 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.800: I/DEBUG(354):     #32 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.800: I/DEBUG(354):     #33 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.800: I/DEBUG(354):     #34 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.800: I/DEBUG(354):     #35 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.800: I/DEBUG(354):     #36 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.800: I/DEBUG(354):     #37 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.801: I/DEBUG(354):     #38 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.801: I/DEBUG(354):     #39 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.801: I/DEBUG(354):     #40 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.801: I/DEBUG(354):     #41 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.801: I/DEBUG(354):     #42 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.801: I/DEBUG(354):     #43 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.801: I/DEBUG(354):     #44 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.802: I/DEBUG(354):     #45 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.802: I/DEBUG(354):     #46 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.802: I/DEBUG(354):     #47 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.802: I/DEBUG(354):     #48 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.802: I/DEBUG(354):     #49 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.802: I/DEBUG(354):     #50 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.802: I/DEBUG(354):     #51 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.803: I/DEBUG(354):     #52 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.803: I/DEBUG(354):     #53 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.803: I/DEBUG(354):     #54 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:42.803: I/DEBUG(354):     #55 pc 0010d4fd  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::HwBlt(EsxBltCopy const*)+12)
  04-03 19:37:42.803: I/DEBUG(354):     #56 pc 0010eb6b  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::Blt(EsxBltCopy const*)+10)
  04-03 19:37:42.803: I/DEBUG(354):     #57 pc 0010ec81  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::BlitRect(EsxResource*, EsxResource*, EsxRect, EsxRect*, int)+272)
  04-03 19:37:42.803: I/DEBUG(354):     #58 pc 0010ed67  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::PreserveBackBufferViaBlt(int)+126)
  04-03 19:37:42.804: I/DEBUG(354):     #59 pc 001159a7  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxContext::ProcessAndSubmitRendering(EsxFlushReason)+134)
  04-03 19:37:42.804: I/DEBUG(354):     #60 pc 00177435  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::Flush(EsxFlushReason)+412)
  04-03 19:37:42.804: I/DEBUG(354):     #61 pc 0017759d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxCmdMgr::GetCmdSpace(EsxCmdBufType, unsigned int)+140)
  04-03 19:37:42.804: I/DEBUG(354):     #62 pc 00173653  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBltHw(EsxBltCopy const*)+938)
  04-03 19:37:42.804: I/DEBUG(354):     #63 pc 0017430d  /system/vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyBlt(EsxBltCopy const*)+132)
  04-03 19:37:43.285: I/AudioFlinger(357): BUFFER TIMEOUT: remove(4099) from active list on thread 0xb59c4000
  04-03 19:37:43.381: W/ActivityManager(859):   Force finishing activity 1 com.xyz.myapp/.MainLandscape
  04-03 19:37:43.382: I/DEBUG(354): Tombstone written to: /data/tombstones/tombstone_09
  04-03 19:37:43.382: I/BootReceiver(859): Copying /data/tombstones/tombstone_09 to DropBox (SYSTEM_TOMBSTONE)
  04-03 19:37:43.384: W/AudioTrack(4064): releaseBuffer() track 0xb491df80 disabled due to previous underrun, restarting
  04-03 19:37:43.396: D/audio_hw_primary(357): out_set_parameters: enter: usecase(1: low-latency-playback) kvpairs: routing=2
  04-03 19:37:43.446: I/Adreno(859): EGLInit: QTI Build: 01/29/15, 1bccc5d, I0ba6dce82d
  04-03 19:37:43.452: I/WindowState(859): WIN DEATH: Window{10b6ffea u0 com.xyz.myapp/com.xyz.myapp.MainLandscape}
  04-03 19:37:43.463: I/OpenGLRenderer(859): Initialized EGL, version 1.4
  04-03 19:37:43.467: I/Zygote(377): Process 4064 exited due to signal (11)
  04-03 19:37:43.479: I/ActivityManager(859): Process com.xyz.myapp (pid 4064) has died
  04-03 19:37:43.513: V/ActivityManager(859): Display changed displayId=0
  04-03 19:37:43.514: I/InputReader(859): Reconfiguring input devices.  changes=0x00000004
  04-03 19:37:43.514: I/InputReader(859): Device reconfigured: id=5, name='atmel_mxt_ts', size 1440x2560, orientation 0, mode 1, display id 0
  04-03 19:37:43.516: I/ActivityManager(859): Config changes=480 {1.0 ?mcc?mnc en_US ?layoutDir sw411dp w411dp h658dp 560dpi nrml port finger -keyb/v/h -nav/h s.9}
  04-03 19:37:43.530: W/AudioPolicyManager(357): unregisterEffect() unknown effect ID 39
  04-03 19:37:43.530: W/AudioFlinger(357): session id 36 not found for pid 4064
  04-03 19:37:43.530: W/AudioFlinger(357): removeEffect_l() 0xb59c4000 cannot promote chain for effect 0xb5958d80
  04-03 19:37:43.530: W/AudioPolicyManager(357): unregisterEffect() unknown effect ID 39
  04-03 19:37:43.540: D/ImsConfigImpl(1308): onConfigurationChange
  04-03 19:37:43.546: E/SurfaceFlinger(258): rejecting buffer: bufWidth=1792, bufHeight=728, front.active.{w=225, h=225}
  04-03 19:37:43.562: E/SurfaceFlinger(258): rejecting buffer: bufWidth=1664, bufHeight=728, front.active.{w=225, h=225}
  04-03 19:37:43.717: I/WindowManager(859): Screen frozen for +232ms due to Window{eccfac3 u0 com.android.systemui.ImageWallpaper}
  04-03 19:37:45.792: I/art(859): Explicit concurrent mark sweep GC freed 16618(953KB) AllocSpace objects, 12(2MB) LOS objects, 30% free, 37MB/53MB, paused 1.137ms total 68.663ms
  04-03 19:37:45.855: D/audio_hw_primary(357): disable_audio_route: reset and update mixer path: low-latency-playback speaker
  04-03 19:37:45.856: D/audio_hw_primary(357): disable_snd_device: snd_device(2: speaker)
  </code></pre>
  
  <p>Any help would be very much appreciated. 
  Thanks a lot in advance.</p>