https://stackoverflow.com/questions/16508912
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RussianSolved! The problem was both UI thread and GL thread were using the same Paint object. I synchronized to prevent contention and the problem was fixed.
Android SIGSEGV on Nexus 7 in libskia near SkCanvas::drawPosText -> AutoDrawLooper::next(SkDrawFilter::Type)+96
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21-04-2022 - |
Question
I've recently started getting this SIGSEGV in our app and am trying to figure out the cause or a work-around. Our app is Java only, we do not use the NDK so we aren't corrupting memory ourselves.
This is a stock Nexus 7 running 4.2.2
The bug is intermittent but always has SkCanvas::drawPosText in the stack (a couple full stack dumps are below):
backtrace:
#00 pc 01010200 <unknown>
#01 pc 0005ce24 /system/lib/libskia.so (AutoDrawLooper::next(SkDrawFilter::Type)+96)
#02 pc 0005e320 /system/lib/libskia.so (SkCanvas::drawPosText(void const*, unsigned int, SkPoint const*, SkPaint const&)+152)
We made a recent change that causes more frequent text rendering to bitmaps that are used as OpenGL textures (text rendering on the GL thread I think), maybe that is related somehow?
btw just a general question -- is there a way to figure out what Java method is triggering this call? I see various dvmInterpret in the stack but don't know if there's a way to figure out what code is running.
Example error dump #1:
:41.380: A/libc(6861): Fatal signal 11 (SIGSEGV) at 0x01010200 (code=1), thread 6861 (ootworks.swords)
:41.480: I/DEBUG(124): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
:41.480: I/DEBUG(124): Build fingerprint: 'google/nakasi/grouper:4.2.2/JDQ39/573038:user/release-keys'
:41.480: I/DEBUG(124): Revision: '0'
:41.480: I/DEBUG(124): pid: 6861, tid: 6861, name: ootworks.swords >>> com.lootworks.swords <<<
:41.480: I/DEBUG(124): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 01010200
:41.620: I/DEBUG(124): r0 68445e30 r1 634b6290 r2 bee3e074 r3 01010201
:41.620: I/DEBUG(124): r4 bee3e070 r5 bee3e074 r6 00000006 r7 00000012
:41.620: I/DEBUG(124): r8 61cf4248 r9 00000000 sl 00000000 fp 634b6290
:41.620: I/DEBUG(124): ip 61d0e900 sp bee3dfa8 lr 402dae28 pc 01010200 cpsr 28000030
:41.620: I/DEBUG(124): d0 40df000040df0000 d1 c04d5064404d5064
:41.620: I/DEBUG(124): d2 4083ebe840ea941a d3 3f8a0000447f0000
:41.620: I/DEBUG(124): d4 407f000040a20000 d5 40df000000000100
:41.620: I/DEBUG(124): d6 413896783f2c0000 d7 c066283400000000
:41.620: I/DEBUG(124): d8 4103126f41816e00 d9 44a0000000000000
:41.620: I/DEBUG(124): d10 0000000042e54c32 d11 0000000000000000
:41.620: I/DEBUG(124): d12 0000000000000000 d13 0000000000000000
:41.620: I/DEBUG(124): d14 0000000000000000 d15 0000000000000000
:41.620: I/DEBUG(124): d16 0000000000000000 d17 0000000000000000
:41.620: I/DEBUG(124): d18 0000000000000000 d19 0000000000000000
:41.620: I/DEBUG(124): d20 0000000000000000 d21 3ff0000000000000
:41.620: I/DEBUG(124): d22 8000000000000000 d23 0000000000000000
:41.620: I/DEBUG(124): d24 0000000000000000 d25 8000000000000000
:41.620: I/DEBUG(124): d26 3ff0000000000000 d27 0100010001000100
:41.620: I/DEBUG(124): d28 0100010001000100 d29 0100010001000100
:41.620: I/DEBUG(124): d30 0000000000000005 d31 0000000000000000
:41.620: I/DEBUG(124): scr 60000093
:41.630: I/DEBUG(124): backtrace:
:41.630: I/DEBUG(124): #00 pc 01010200 <unknown>
:41.630: I/DEBUG(124): #01 pc 0005ce24 /system/lib/libskia.so (AutoDrawLooper::next(SkDrawFilter::Type)+96)
:41.630: I/DEBUG(124): #02 pc 0005e320 /system/lib/libskia.so (SkCanvas::drawPosText(void const*, unsigned int, SkPoint const*, SkPaint const&)+152)
:41.630: I/DEBUG(124): #03 pc 0006b975 /system/lib/libandroid_runtime.so
:41.630: I/DEBUG(124): #04 pc 0006bb93 /system/lib/libandroid_runtime.so
:41.630: I/DEBUG(124): #05 pc 0001e290 /system/lib/libdvm.so (dvmPlatformInvoke+112)
:41.630: I/DEBUG(124): #06 pc 0004d411 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+396)
:41.630: I/DEBUG(124): #07 pc 000276a0 /system/lib/libdvm.so
:41.630: I/DEBUG(124): #08 pc 0002b57c /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
:41.630: I/DEBUG(124): #09 pc 0005fc31 /system/lib/libdvm.so (dvmCallMethodV(Thread*, Method const*, Object*, bool, JValue*, std::__va_list)+272)
:41.630: I/DEBUG(124): #10 pc 0004c32d /system/lib/libdvm.so
:41.630: I/DEBUG(124): #11 pc 0003fd21 /system/lib/libdvm.so
:41.630: I/DEBUG(124): #12 pc 00049181 /system/lib/libandroid_runtime.so
:41.630: I/DEBUG(124): #13 pc 00059d57 /system/lib/libandroid_runtime.so (android::NativeInputEventReceiver::consumeEvents(_JNIEnv*, bool, long long)+246)
:41.630: I/DEBUG(124): #14 pc 00059e5d /system/lib/libandroid_runtime.so (android::NativeInputEventReceiver::handleEvent(int, int, void*)+92)
:41.630: I/DEBUG(124): #15 pc 00014cad /system/lib/libutils.so (android::Looper::pollInner(int)+516)
:41.630: I/DEBUG(124): #16 pc 00014d71 /system/lib/libutils.so (android::Looper::pollOnce(int, int*, int*, void**)+104)
:41.630: I/DEBUG(124): #17 pc 0005ed53 /system/lib/libandroid_runtime.so (android::NativeMessageQueue::pollOnce(_JNIEnv*, int)+22)
:41.630: I/DEBUG(124): #18 pc 0001e290 /system/lib/libdvm.so (dvmPlatformInvoke+112)
:41.630: I/DEBUG(124): #19 pc 0004d411 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+396)
:41.630: I/DEBUG(124): #20 pc 00000214 /dev/ashmem/dalvik-jit-code-cache (deleted)
:41.630: I/DEBUG(124): stack:
:41.630: I/DEBUG(124): bee3df68 00000012
:41.630: I/DEBUG(124): bee3df6c 40106813 /system/lib/libc.so (dlfree+34)
:41.630: I/DEBUG(124): bee3df70 000001bf
:41.630: I/DEBUG(124): bee3df74 61d0e8d0
:41.630: I/DEBUG(124): bee3df78 00000012
:41.630: I/DEBUG(124): bee3df7c 61cf4248
:41.630: I/DEBUG(124): bee3df80 00000000
:41.630: I/DEBUG(124): bee3df84 00000000
:41.630: I/DEBUG(124): bee3df88 634b6290
:41.630: I/DEBUG(124): bee3df8c bee3e074 [stack]
:41.630: I/DEBUG(124): bee3df90 bee3e074 [stack]
:41.630: I/DEBUG(124): bee3df94 402f871c /system/lib/libskia.so (SkPaint::operator=(SkPaint const&)+500)
:41.630: I/DEBUG(124): bee3df98 bee3e070 [stack]
:41.630: I/DEBUG(124): bee3df9c 00000000
:41.630: I/DEBUG(124): bee3dfa0 df0027ad
:41.630: I/DEBUG(124): bee3dfa4 00000000
:41.630: I/DEBUG(124): #00 bee3dfa8 00000000
:41.630: I/DEBUG(124): ........ ........
:41.630: I/DEBUG(124): #01 bee3dfa8 00000000
:41.630: I/DEBUG(124): bee3dfac 00000000
:41.630: I/DEBUG(124): bee3dfb0 61d44ba0
:41.630: I/DEBUG(124): bee3dfb4 402dc324 /system/lib/libskia.so (SkCanvas::drawPosText(void const*, unsigned int, SkPoint const*, SkPaint const&)+156)
:41.630: I/DEBUG(124): #02 bee3dfb8 00000000
:41.630: I/DEBUG(124): bee3dfbc 00000002
:41.630: I/DEBUG(124): bee3dfc0 bee3e074 [stack]
:41.630: I/DEBUG(124): bee3dfc4 bee3e074 [stack]
:41.630: I/DEBUG(124): bee3dfc8 00000009
:41.630: I/DEBUG(124): bee3dfcc 00000000
:41.630: I/DEBUG(124): bee3dfd0 bee3e070 [stack]
:41.630: I/DEBUG(124): bee3dfd4 40140228
:41.630: I/DEBUG(124): bee3dfd8 41f6e7cb /dev/ashmem/dalvik-heap (deleted)
:41.630: I/DEBUG(124): bee3dfdc 00000000
:41.630: I/DEBUG(124): bee3dfe0 3f800000
:41.630: I/DEBUG(124): bee3dfe4 61ee9b00
:41.630: I/DEBUG(124): bee3dfe8 634b62f4
:41.630: I/DEBUG(124): bee3dfec 6837d668
:41.630: I/DEBUG(124): bee3dff0 6837d668
:41.630: I/DEBUG(124): bee3dff4 634b6298
:41.630: I/DEBUG(124): ........ ........
:41.640: I/DEBUG(124): memory near r0:
:41.640: I/DEBUG(124): 68445e10 61967fec 00000000 74636120 00000013
:41.640: I/DEBUG(124): 68445e20 00000000 68445e20 68445e20 0000002b
:41.640: I/DEBUG(124): 68445e30 4069cb68 4013fc7c 61f0e878 00000000
:41.640: I/DEBUG(124): 68445e40 40800000 40800000 80000000 02000000
:41.640: I/DEBUG(124): 68445e50 00000028 0000001b 00000000 00000001
:41.640: I/DEBUG(124): 68445e60 61db2524 00000000 0069006f 0000005b
:41.640: I/DEBUG(124): 68445e70 00000048 00000000 68445eb4 00000001
:41.640: I/DEBUG(124): 68445e80 00000000 40563a4d 00000000 68445eb4
:41.640: I/DEBUG(124): 68445e90 00000002 00000000 00000000 00000000
:41.640: I/DEBUG(124): 68445ea0 68445eb4 00000003 00000000 00000000
:41.640: I/DEBUG(124): 68445eb0 00000000 41434f4e 00004553 68396558
:41.640: I/DEBUG(124): 68445ec0 64bfff18 0000001b 6224e470 0000000e
:41.640: I/DEBUG(124): 68445ed0 00000000 00000000 00000001 0000001b
:41.640: I/DEBUG(124): 68445ee0 61f7a230 0000027e 00000000 00000000
:41.640: I/DEBUG(124): 68445ef0 00000001 0000002b 00000018 00000000
:41.640: I/DEBUG(124): 68445f00 61d81940 68755940 635e0690 635e06cc
:41.640: I/DEBUG(124): memory near r1:
:41.640: I/DEBUG(124): 634b6270 40db0000 c1390000 40b28000 c1390000
:41.640: I/DEBUG(124): 634b6280 40980000 c1298000 407c0000 0000014b
:41.640: I/DEBUG(124): 634b6290 403d3418 00000001 00000000 00000000
:41.640: I/DEBUG(124): 634b62a0 00000058 00000000 00000000 00000000
:41.640: I/DEBUG(124): 634b62b0 634b62c8 61968648 0000006c 634b62c8
:41.640: I/DEBUG(124): 634b62c0 00000001 634b62dc 61968648 00000000
:41.640: I/DEBUG(124): 634b62d0 634b62dc 634b6348 634b6348 00000000
:41.640: I/DEBUG(124): 634b62e0 634b62f4 634b631c 00000000 6837d660
:41.640: I/DEBUG(124): 634b62f0 6837d660 3f800000 00000000 00000000
:41.640: I/DEBUG(124): 634b6300 00000000 3f800000 00000000 00000000
:41.640: I/DEBUG(124): 634b6310 00000000 3f800000 413a9d10 00000000
:41.640: I/DEBUG(124): 634b6320 00000000 00000200 00000080 00000000
:41.640: I/DEBUG(124): 634b6330 00000000 00000000 00000000 00000000
:41.640: I/DEBUG(124): 634b6340 00000000 3f00a001 00000000 61ee9af8
:41.640: I/DEBUG(124): 634b6350 00000000 c1048000 00000000 00000000
:41.650: I/DEBUG(124): 634b6360 00000000 00000000 41144801 00000000
:41.650: I/DEBUG(124): memory near r2:
:41.650: I/DEBUG(124): bee3e054 4007ddc0 40850d4c 407fad21 4314c140
:41.650: I/DEBUG(124): bee3e064 407faeb5 bee3e174 61cf3240 bee3e074
:41.650: I/DEBUG(124): bee3e074 4003eca0 41c5863c 3f800000 00000000
:41.650: I/DEBUG(124): bee3e084 00000000 00000000 00000000 00000000
:41.650: I/DEBUG(124): bee3e094 00000000 00000000 58c2fec0 00000000
:41.650: I/DEBUG(124): bee3e0a4 ffffffff 3f80a0cd 40800000 05400101
:41.650: I/DEBUG(124): bee3e0b4 58b4d958 00000000 000001c0 634b6290
:41.650: I/DEBUG(124): bee3e0c4 61d0e8d0 68445e30 00000000 00000000
:41.650: I/DEBUG(124): bee3e0d4 00000001 634b6200 2ba413d0 00000009
:41.650: I/DEBUG(124): bee3e0e4 61d0e8d0 634b6290 61d44ba0 402dc288
:41.650: I/DEBUG(124): bee3e0f4 00000000 61cf4248 61dad370 bee3e1fc
:41.650: I/DEBUG(124): bee3e104 40214977 61d0e8d0 00000009 00000009
:41.650: I/DEBUG(124): bee3e114 00000002 61d0e2a8 408701b0 4314c110
:41.650: I/DEBUG(124): bee3e124 00000000 40870518 4080ae5b 4314c110
:41.650: I/DEBUG(124): bee3e134 2ba413d0 bee3e154 00000001 4314c120
:41.650: I/DEBUG(124): bee3e144 00000000 4314c140 00000000 61dc00bc
:41.650: I/DEBUG(124): memory near r3:
:41.650: I/DEBUG(124): 010101e0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 010101f0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010200 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010210 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010220 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010230 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010240 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010250 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010260 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010270 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010280 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 01010290 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 010102a0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 010102b0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 010102c0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): 010102d0 ffffffff ffffffff ffffffff ffffffff
:41.650: I/DEBUG(124): memory near r4:
:41.650: I/DEBUG(124): bee3e050 61d0e8d0 4007ddc0 40850d4c 407fad21
:41.650: I/DEBUG(124): bee3e060 4314c140 407faeb5 bee3e174 61cf3240
:41.650: I/DEBUG(124): bee3e070 bee3e074 4003eca0 41c5863c 3f800000
:41.650: I/DEBUG(124): bee3e080 00000000 00000000 00000000 00000000
:41.650: I/DEBUG(124): bee3e090 00000000 00000000 00000000 58c2fec0
:41.650: I/DEBUG(124): bee3e0a0 00000000 ffffffff 3f80a0cd 40800000
:41.650: I/DEBUG(124): bee3e0b0 05400101 58b4d958 00000000 000001c0
:41.650: I/DEBUG(124): bee3e0c0 634b6290 61d0e8d0 68445e30 00000000
:41.650: I/DEBUG(124): bee3e0d0 00000000 00000001 634b6200 2ba413d0
:41.650: I/DEBUG(124): bee3e0e0 00000009 61d0e8d0 634b6290 61d44ba0
:41.650: I/DEBUG(124): bee3e0f0 402dc288 00000000 61cf4248 61dad370
:41.650: I/DEBUG(124): bee3e100 bee3e1fc 40214977 61d0e8d0 00000009
:41.650: I/DEBUG(124): bee3e110 00000009 00000002 61d0e2a8 408701b0
:41.650: I/DEBUG(124): bee3e120 4314c110 00000000 40870518 4080ae5b
:41.650: I/DEBUG(124): bee3e130 4314c110 2ba413d0 bee3e154 00000001
:41.650: I/DEBUG(124): bee3e140 4314c120 00000000 4314c140 00000000
:41.650: I/DEBUG(124): memory near r5:
:41.650: I/DEBUG(124): bee3e054 4007ddc0 40850d4c 407fad21 4314c140
:41.650: I/DEBUG(124): bee3e064 407faeb5 bee3e174 61cf3240 bee3e074
:41.650: I/DEBUG(124): bee3e074 4003eca0 41c5863c 3f800000 00000000
:41.650: I/DEBUG(124): bee3e084 00000000 00000000 00000000 00000000
:41.650: I/DEBUG(124): bee3e094 00000000 00000000 58c2fec0 00000000
:41.650: I/DEBUG(124): bee3e0a4 ffffffff 3f80a0cd 40800000 05400101
:41.650: I/DEBUG(124): bee3e0b4 58b4d958 00000000 000001c0 634b6290
:41.650: I/DEBUG(124): bee3e0c4 61d0e8d0 68445e30 00000000 00000000
:41.650: I/DEBUG(124): bee3e0d4 00000001 634b6200 2ba413d0 00000009
:41.650: I/DEBUG(124): bee3e0e4 61d0e8d0 634b6290 61d44ba0 402dc288
:41.650: I/DEBUG(124): bee3e0f4 00000000 61cf4248 61dad370 bee3e1fc
:41.650: I/DEBUG(124): bee3e104 40214977 61d0e8d0 00000009 00000009
:41.650: I/DEBUG(124): bee3e114 00000002 61d0e2a8 408701b0 4314c110
:41.650: I/DEBUG(124): bee3e124 00000000 40870518 4080ae5b 4314c110
:41.650: I/DEBUG(124): bee3e134 2ba413d0 bee3e154 00000001 4314c120
:41.650: I/DEBUG(124): bee3e144 00000000 4314c140 00000000 61dc00bc
:41.650: I/DEBUG(124): memory near r8:
:41.650: I/DEBUG(124): 61cf4228 41800000 41100000 41200000 0000002b
:41.650: I/DEBUG(124): 61cf4238 00000001 00000012 ffffffff ffffffff
:41.650: I/DEBUG(124): 61cf4248 001d0013 001b0017 004f0003 00490048
:41.650: I/DEBUG(124): 61cf4258 ffff0057 0000002b 00000000 00000001
:41.650: I/DEBUG(124): 61cf4268 00000002 00000003 00000004 00000005
:41.650: I/DEBUG(124): 61cf4278 00000006 00000007 00000008 0000002b
:41.650: I/DEBUG(124): 61cf4288 00000000 00000000 00000000 00000000
:41.660: I/DEBUG(124): 61cf4298 00000000 00000000 00000000 00000000
:41.660: I/DEBUG(124): 61cf42a8 00000028 0000001b 622b1a40 00000018
:41.660: I/DEBUG(124): 61cf42b8 00000000 00000000 00000001 0000001b
:41.660: I/DEBUG(124): 61cf42c8 622b4c28 00000006 00000000 00000000
:41.660: I/DEBUG(124): 61cf42d8 00000025 0000001b 62244da0 0000000c
:41.660: I/DEBUG(124): 61cf42e8 00000000 00000000 00000001 0000001b
:41.660: I/DEBUG(124): 61cf42f8 61f7a318 000001ca 00000000 00000000
:41.660: I/DEBUG(124): 61cf4308 00000001 0000001b 622b41e0 0000000e
:41.660: I/DEBUG(124): 61cf4318 00000000 00000000 00000001 0000001b
:41.660: I/DEBUG(124): memory near fp:
:41.660: I/DEBUG(124): 634b6270 40db0000 c1390000 40b28000 c1390000
:41.660: I/DEBUG(124): 634b6280 40980000 c1298000 407c0000 0000014b
:41.660: I/DEBUG(124): 634b6290 403d3418 00000001 00000000 00000000
:41.660: I/DEBUG(124): 634b62a0 00000058 00000000 00000000 00000000
:41.660: I/DEBUG(124): 634b62b0 634b62c8 61968648 0000006c 634b62c8
:41.660: I/DEBUG(124): 634b62c0 00000001 634b62dc 61968648 00000000
:41.660: I/DEBUG(124): 634b62d0 634b62dc 634b6348 634b6348 00000000
:41.660: I/DEBUG(124): 634b62e0 634b62f4 634b631c 00000000 6837d660
:41.660: I/DEBUG(124): 634b62f0 6837d660 3f800000 00000000 00000000
:41.660: I/DEBUG(124): 634b6300 00000000 3f800000 00000000 00000000
:41.660: I/DEBUG(124): 634b6310 00000000 3f800000 413a9d10 00000000
:41.660: I/DEBUG(124): 634b6320 00000000 00000200 00000080 00000000
:41.660: I/DEBUG(124): 634b6330 00000000 00000000 00000000 00000000
:41.660: I/DEBUG(124): 634b6340 00000000 3f00a001 00000000 61ee9af8
:41.660: I/DEBUG(124): 634b6350 00000000 c1048000 00000000 00000000
:41.660: I/DEBUG(124): 634b6360 00000000 00000000 41144801 00000000
:41.660: I/DEBUG(124): memory near ip:
:41.660: I/DEBUG(124): 61d0e8e0 00000000 00000000 00000000 00000000
:41.660: I/DEBUG(124): 61d0e8f0 00000000 00000000 58c2fec0 00000000
:41.660: I/DEBUG(124): 61d0e900 ffff0000 3f80a0cd 40800000 05400101
:41.660: I/DEBUG(124): 61d0e910 58b4d958 00000000 000001ed 0000001b
:41.660: I/DEBUG(124): 61d0e920 62298678 0000001a 00000000 00000000
:41.660: I/DEBUG(124): 61d0e930 00000001 00000013 61db1150 6196a4b8
:41.660: I/DEBUG(124): 61d0e940 688774d0 0000001b 4129beb8 4013fc94
:41.660: I/DEBUG(124): 61d0e950 77656976 7365472e 65727574 00000053
:41.660: I/DEBUG(124): 61d0e960 4003eca0 41f6e7cb 3f800000 00000000
:41.660: I/DEBUG(124): 61d0e970 00000000 00000000 00000000 00000000
:41.660: I/DEBUG(124): 61d0e980 00000000 00000000 62fe03b8 00000000
:41.660: I/DEBUG(124): 61d0e990 ffffffff 3f80a0cd 40800000 05410101
:41.660: I/DEBUG(124): 61d0e9a0 58b4d958 00000000 0000005a 00000033
:41.660: I/DEBUG(124): 61d0e9b0 00000000 61dae720 00000000 00000000
:41.660: I/DEBUG(124): 61d0e9c0 00000000 00000000 00000000 00000800
:41.660: I/DEBUG(124): 61d0e9d0 00000200 00000080 00040006 0000004b
:41.660: I/DEBUG(124): memory near sp:
:41.660: I/DEBUG(124): bee3df88 634b6290 bee3e074 bee3e074 402f871c
:41.660: I/DEBUG(124): bee3df98 bee3e070 00000000 df0027ad 00000000
:41.660: I/DEBUG(124): bee3dfa8 00000000 00000000 61d44ba0 402dc324
:41.660: I/DEBUG(124): bee3dfb8 00000000 00000002 bee3e074 bee3e074
:41.660: I/DEBUG(124): bee3dfc8 00000009 00000000 bee3e070 40140228
:41.660: I/DEBUG(124): bee3dfd8 41f6e7cb 00000000 3f800000 61ee9b00
:41.660: I/DEBUG(124): bee3dfe8 634b62f4 6837d668 6837d668 634b6298
:41.660: I/DEBUG(124): bee3dff8 61ee9af8 00000000 00000000 00000000
:41.660: I/DEBUG(124): bee3e008 00000000 634b6290 00000000 00000000
:41.660: I/DEBUG(124): bee3e018 00000001 bee3e074 00000000 bee3e110
:41.660: I/DEBUG(124): bee3e028 40850d81 bee3e124 0000004c 407fbdeb
:41.660: I/DEBUG(124): bee3e038 bee3e05c bee3e15c bee3e064 bee3e164
:41.660: I/DEBUG(124): bee3e048 00000000 00000000 61d0e8d0 4007ddc0
:41.660: I/DEBUG(124): bee3e058 40850d4c 407fad21 4314c140 407faeb5
:41.660: I/DEBUG(124): bee3e068 bee3e174 61cf3240 bee3e074 4003eca0
:41.660: I/DEBUG(124): bee3e078 41c5863c 3f800000 00000000 00000000
:41.660: I/DEBUG(124): code around pc:
:41.660: I/DEBUG(124): 010101e0 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 010101f0 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010200 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010210 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010220 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010230 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010240 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010250 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010260 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010270 ffffffff ffffffff ffffffff ffffffff
:41.660: I/DEBUG(124): 01010280 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): 01010290 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): 010102a0 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): 010102b0 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): 010102c0 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): 010102d0 ffffffff ffffffff ffffffff ffffffff
:41.670: I/DEBUG(124): code around lr:
:41.670: I/DEBUG(124): 402dae08 e5940058 e3500000 0a000008 e590e000
:41.670: I/DEBUG(124): 402dae18 e1a02005 e5941050 e59e3018 e12fff33
:41.670: I/DEBUG(124): 402dae28 e3500000 03a0c001 05c4c068 08bd8070
:41.670: I/DEBUG(124): 402dae38 e594005c e3500000 0a000007 e5903000
:41.670: I/DEBUG(124): 402dae48 e1a01005 e1a02006 e593c008 e12fff3c
:41.670: I/DEBUG(124): 402dae58 e5940058 e3500000 0a00000b e5845060
:41.670: I/DEBUG(124): 402dae68 e1a00005 eb0083b5 e3500000 13a00000
:41.670: I/DEBUG(124): 402dae78 03a00001 15840060 e8bd8070 e594205c
:41.670: I/DEBUG(124): 402dae88 e1520000 1affffd7 e5945054 e3a01001
:41.670: I/DEBUG(124): 402dae98 e5c41068 eafffff0 e2845004 e1a00005
:41.670: I/DEBUG(124): 402daea8 eb0074e0 e5845000 eaffffd4 e92d45f8
:41.670: I/DEBUG(124): 402daeb8 e3a05000 e3a07010 e1a04000 e1a08001
:41.670: I/DEBUG(124): 402daec8 e1a02007 e1a01005 e58050b8 e28000c8
:41.670: I/DEBUG(124): 402daed8 e3a0a001 ebff81cd e1a02007 e1a01005
:41.670: I/DEBUG(124): 402daee8 e5c4a0d8 e28400dc ebff81c8 e5c4a0ec
:41.670: I/DEBUG(124): 402daef8 e58450bc e2840020 e5c450c4 e58450c0
:41.670: I/DEBUG(124): memory map around fault addr 01010200:
:41.670: I/DEBUG(124): (no map below)
:41.670: I/DEBUG(124): (no map for address)
:41.670: I/DEBUG(124): 40000000-40014000
Example error dump #2:
:14.580: A/libc(1987): Fatal signal 11 (SIGSEGV) at 0x62fc4120 (code=2), thread 1987 (ootworks.swords)
:14.680: I/DEBUG(124): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
:14.680: I/DEBUG(124): Build fingerprint: 'google/nakasi/grouper:4.2.2/JDQ39/573038:user/release-keys'
:14.680: I/DEBUG(124): Revision: '0'
:14.680: I/DEBUG(124): pid: 1987, tid: 1987, name: ootworks.swords >>> com.lootworks.swords <<<
:14.680: I/DEBUG(124): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 62fc4120
:14.920: I/DEBUG(124): r0 635cb3b8 r1 636d7498 r2 bee3e50c r3 62fc4120
:14.920: I/DEBUG(124): r4 bee3e508 r5 bee3e50c r6 00000006 r7 00000010
:14.920: I/DEBUG(124): r8 636e2f50 r9 00000000 sl 00000000 fp 636d7498
:14.920: I/DEBUG(124): ip 00000000 sp bee3e440 lr 402dae28 pc 62fc4120 cpsr 28000010
:14.920: I/DEBUG(124): d0 4080000040800000 d1 44801000433a8000
:14.920: I/DEBUG(124): d2 0000000042ee0000 d3 0000000000000000
:14.920: I/DEBUG(124): d4 c1b2f480c1aef480 d5 000000003f800000
:14.920: I/DEBUG(124): d6 41e5100800000000 d7 42028804433e8000
:14.920: I/DEBUG(124): d8 428700000000000e d9 44a0000041e00000
:14.920: I/DEBUG(124): d10 403fda0041e51008 d11 403827485a00b037
:14.920: I/DEBUG(124): d12 438bbf244411d8e6 d13 403827485a00b037
:14.920: I/DEBUG(124): d14 431e290841c13a43 d15 4336507243365050
:14.920: I/DEBUG(124): d16 4050e00000000000 d17 3fe0000000000000
:14.920: I/DEBUG(124): d18 4061000000000000 d19 0000000000000000
:14.920: I/DEBUG(124): d20 0000000000000000 d21 3ff0000000000000
:14.920: I/DEBUG(124): d22 8000000000000000 d23 0000000000000000
:14.920: I/DEBUG(124): d24 0000000000000000 d25 8000000000000000
:14.920: I/DEBUG(124): d26 3ff0000000000000 d27 0013001300130013
:14.920: I/DEBUG(124): d28 0100010001000100 d29 0100010001000100
:14.920: I/DEBUG(124): d30 0000000000000005 d31 0000000000000000
:14.920: I/DEBUG(124): scr 20000093
:14.920: I/DEBUG(124): backtrace:
:14.920: I/DEBUG(124): #00 pc 00001120 <unknown>
:14.920: I/DEBUG(124): #01 pc 0005ce24 /system/lib/libskia.so (AutoDrawLooper::next(SkDrawFilter::Type)+96)
:14.920: I/DEBUG(124): #02 pc 0005e320 /system/lib/libskia.so (SkCanvas::drawPosText(void const*, unsigned int, SkPoint const*, SkPaint const&)+152)
:14.920: I/DEBUG(124): #03 pc 0006b975 /system/lib/libandroid_runtime.so
:14.920: I/DEBUG(124): #04 pc 0006bb93 /system/lib/libandroid_runtime.so
:14.920: I/DEBUG(124): #05 pc 0001e290 /system/lib/libdvm.so (dvmPlatformInvoke+112)
:14.920: I/DEBUG(124): #06 pc 0004d411 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+396)
:14.920: I/DEBUG(124): #07 pc 000276a0 /system/lib/libdvm.so
:14.920: I/DEBUG(124): #08 pc 0002b57c /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
:14.920: I/DEBUG(124): #09 pc 0005ff07 /system/lib/libdvm.so (dvmInvokeMethod(Object*, Method const*, ArrayObject*, ArrayObject*, ClassObject*, bool)+374)
:14.920: I/DEBUG(124): #10 pc 000677e1 /system/lib/libdvm.so
:14.920: I/DEBUG(124): #11 pc 000276a0 /system/lib/libdvm.so
:14.920: I/DEBUG(124): #12 pc 0002b57c /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
:14.920: I/DEBUG(124): #13 pc 0005fc31 /system/lib/libdvm.so (dvmCallMethodV(Thread*, Method const*, Object*, bool, JValue*, std::__va_list)+272)
:14.920: I/DEBUG(124): #14 pc 000499fb /system/lib/libdvm.so
:14.920: I/DEBUG(124): #15 pc 00046871 /system/lib/libandroid_runtime.so
:14.920: I/DEBUG(124): #16 pc 00047533 /system/lib/libandroid_runtime.so (android::AndroidRuntime::start(char const*, char const*)+390)
:14.920: I/DEBUG(124): #17 pc 00000db7 /system/bin/app_process
:14.920: I/DEBUG(124): #18 pc 0001271f /system/lib/libc.so (__libc_init+38)
:14.920: I/DEBUG(124): #19 pc 00000ae8 /system/bin/app_process
Solution
OTHER TIPS
I had same issue on nameless Chinese OEM phone. Thanks to mwk's clue I was able to pinpoint the issue to one of the Paint instances which was updated [.setColor(..) ; .setShadowLayer(..); .setTextSize(..) ] by non-UI thread.
I've fixed it by creating thread-safe wrapper which instantiates new Paint object each time one of the attributes is required to change:
import android.graphics.Paint;
import android.graphics.Typeface;
import com.google.common.base.Preconditions;
public class ThreadSafePaint {
private Paint delegate;
public ThreadSafePaint(Paint delegate) {
this.delegate = Preconditions.checkNotNull(delegate);
}
public Paint getPaint() {
return delegate;
}
public void setAntiAlias(boolean aa) {
delegate = new Paint(delegate);
delegate.setAntiAlias(aa);
}
public Typeface setTypeface(Typeface typeface) {
delegate = new Paint(delegate);
return delegate.setTypeface(typeface);
}
public void setShadowLayer(float radius, float dx, float dy, int color) {
delegate = new Paint(delegate);
delegate.setShadowLayer(radius, dx, dy, color);
}
public int getColor() {
return delegate.getColor();
}
public void setColor(int color) {
delegate = new Paint(delegate);
delegate.setColor(color);
}
public void setTextSize(float textSize) {
delegate = new Paint(delegate);
delegate.setTextSize(textSize);
}
}
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