iOS8 webcore error

when i load a https request on uiwebview,crash several times,logs as

WebCore`WebCore::StyleResolver::loadPendingImages:
    0x19191fa94 <+0>:    stp    x28, x27, [sp, #-96]!
    0x19191fa98 <+4>:    stp    x26, x25, [sp, #16]
    0x19191fa9c <+8>:    stp    x24, x23, [sp, #32]
    0x19191faa0 <+12>:   stp    x22, x21, [sp, #48]
    0x19191faa4 <+16>:   stp    x20, x19, [sp, #64]
    0x19191faa8 <+20>:   stp    x29, x30, [sp, #80]
    0x19191faac <+24>:   add    x29, sp, #80
    0x19191fab0 <+28>:   sub    sp, sp, #256
    0x19191fab4 <+32>:   mov    x19, x0
    0x19191fab8 <+36>:   ldr    w8, [x19, #496]
    0x19191fabc <+40>:   cbz    w8, 0x19192044c           ; <+2488>
    0x19191fac0 <+44>:   ldr    x20, [x19, #480]
    0x19191fac4 <+48>:   ldrsw  x8, [x19, #488]
    0x19191fac8 <+52>:   mov    x24, x20
    0x19191facc <+56>:   cbz    w8, 0x19191fafc           ; <+104>
    0x19191fad0 <+60>:   lsl    x9, x8, #4
    0x19191fad4 <+64>:   add    x10, x20, #16
    0x19191fad8 <+68>:   mov    x24, x20
    0x19191fadc <+72>:   ldur   w11, [x10, #-16]
    0x19191fae0 <+76>:   cbz    w11, 0x19191faec          ; <+88>
    0x19191fae4 <+80>:   cmp    w11, #401
    0x19191fae8 <+84>:   b.ne   0x19191fafc               ; <+104>
    0x19191faec <+88>:   mov    x24, x10
    0x19191faf0 <+92>:   sub    x9, x9, #16
    0x19191faf4 <+96>:   add    x10, x10, #16
    0x19191faf8 <+100>:  cbnz   x9, 0x19191fadc           ; <+72>
    0x19191fafc <+104>:  add    x23, x19, #480
    0x19191fb00 <+108>:  add    x25, x20, x8, lsl #4
    0x19191fb04 <+112>:  cmp    x24, x25
    0x19191fb08 <+116>:  b.eq   0x1919203f0               ; <+2396>
    0x19191fb0c <+120>:  add    x9, sp, #160
    0x19191fb10 <+124>:  add    x10, sp, #128
    0x19191fb14 <+128>:  add    x28, x9, #8
    0x19191fb18 <+132>:  add    x11, x9, #16
    0x19191fb1c <+136>:  add    x9, x9, #24
    0x19191fb20 <+140>:  stp    x9, x11, [sp, #64]
    0x19191fb24 <+144>:  add    x9, x10, #8
    0x19191fb28 <+148>:  str    x9, [sp, #56]
    0x19191fb2c <+152>:  add    x9, x10, #16
    0x19191fb30 <+156>:  str    x9, [sp, #48]
    0x19191fb34 <+160>:  add    x9, x10, #24
    0x19191fb38 <+164>:  str    x9, [sp, #40]
    0x19191fb3c <+168>:  add    x9, sp, #96
    0x19191fb40 <+172>:  add    x10, x9, #8
    0x19191fb44 <+176>:  str    x10, [sp, #32]
    0x19191fb48 <+180>:  add    x10, x9, #16
    0x19191fb4c <+184>:  add    x9, x9, #24
    0x19191fb50 <+188>:  stp    x9, x10, [sp, #16]
    0x19191fb54 <+192>:  add    x26, x20, x8, lsl #4
    0x19191fb58 <+196>:  ldr    w8, [x24]
    0x19191fb5c <+200>:  cmp    w8, #351
    0x19191fb60 <+204>:  b.gt   0x19191fbac               ; <+280>
    0x19191fb64 <+208>:  cmp    w8, #47
    0x19191fb68 <+212>:  b.gt   0x19191fbcc               ; <+312>
    0x19191fb6c <+216>:  cmp    w8, #26
    0x19191fb70 <+220>:  b.ne   0x1919203b8               ; <+2340>
    0x19191fb74 <+224>:  ldr    x22, [x19, #432]
    0x19191fb78 <+228>:  ldr    x20, [x22, #24]
    0x19191fb7c <+232>:  ldr    w8, [x20]
    0x19191fb80 <+236>:  cmp    w8, #1
    0x19191fb84 <+240>:  b.eq   0x19191fff4               ; <+1376>
    0x19191fb88 <+244>:  mov    x0, x20
    0x19191fb8c <+248>:  bl     0x192548f20               ; WebCore::StyleBackgroundData::copy() const
    0x19191fb90 <+252>:  mov    x20, x0
    0x19191fb94 <+256>:  ldr    x21, [x22, #24]
    0x19191fb98 <+260>:  ldr    w8, [x21]
    0x19191fb9c <+264>:  sub    w8, w8, #1
    0x19191fba0 <+268>:  cbz    w8, 0x19191ffe0           ; <+1356>
    0x19191fba4 <+272>:  str    w8, [x21]
    0x19191fba8 <+276>:  b      0x19191fff0               ; <+1372>
    0x19191fbac <+280>:  cmp    w8, #352
    0x19191fbb0 <+284>:  b.ne   0x1919203b8               ; <+2340>
    0x19191fbb4 <+288>:  ldr    x8, [x19, #432]
    0x19191fbb8 <+292>:  ldr    x8, [x8, #40]
    0x19191fbbc <+296>:  ldr    x1, [x8, #232]
    0x19191fbc0 <+300>:  mov    x0, x19
    0x19191fbc4 <+304>:  bl     0x1925592f8               ; WebCore::StyleResolver::loadPendingShapeImage(WebCore::ShapeValue*)
    0x19191fbc8 <+308>:  b      0x1919203b8               ; <+2340>
    0x19191fbcc <+312>:  cmp    w8, #74
    0x19191fbd0 <+316>:  b.gt   0x19191fc3c               ; <+424>
    0x19191fbd4 <+320>:  cmp    w8, #48
    0x19191fbd8 <+324>:  b.ne   0x1919203b8               ; <+2340>
    0x19191fbdc <+328>:  ldr    x20, [x19, #432]
    0x19191fbe0 <+332>:  ldr    x8, [x20, #32]
    0x19191fbe4 <+336>:  ldr    x8, [x8, #152]
    0x19191fbe8 <+340>:  ldr    x21, [x8, #8]
    0x19191fbec <+344>:  cbz    x21, 0x1919203b8          ; <+2340>
    0x19191fbf0 <+348>:  ldrb   w8, [x21, #12]
    0x19191fbf4 <+352>:  tbz    w8, #1, 0x1919203b8       ; <+2340>
    0x19191fbf8 <+356>:  bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x19191fbfc <+360>:  mov    x2, x0
    0x19191fc00 <+364>:  sub    x22, x29, #120
    0x19191fc04 <+368>:  mov    x8, x22
    0x19191fc08 <+372>:  mov    x0, x19
    0x19191fc0c <+376>:  mov    x1, x21
    0x19191fc10 <+380>:  bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x19191fc14 <+384>:  mov    x0, x20
    0x19191fc18 <+388>:  mov    x1, x22
    0x19191fc1c <+392>:  bl     0x19192d968               ; WebCore::RenderStyle::setBorderImageSource(***::PassRefPtr<WebCore::StyleImage>)
    0x19191fc20 <+396>:  ldur   x8, [x29, #-120]
    0x19191fc24 <+400>:  cbz    x8, 0x1919203b8           ; <+2340>
    0x19191fc28 <+404>:  ldr    w9, [x8, #8]!
    0x19191fc2c <+408>:  sub    w9, w9, #1
    0x19191fc30 <+412>:  cbz    w9, 0x1919203a4           ; <+2320>
    0x19191fc34 <+416>:  str    w9, [x8]
    0x19191fc38 <+420>:  b      0x1919203b8               ; <+2340>
    0x19191fc3c <+424>:  cmp    w8, #283
    0x19191fc40 <+428>:  b.gt   0x19191fd24               ; <+656>
    0x19191fc44 <+432>:  cmp    w8, #215
    0x19191fc48 <+436>:  b.gt   0x19191fd8c               ; <+760>
    0x19191fc4c <+440>:  cmp    w8, #75
    0x19191fc50 <+444>:  b.eq   0x1919200b0               ; <+1564>
    0x19191fc54 <+448>:  cmp    w8, #78
    0x19191fc58 <+452>:  b.ne   0x19192013c               ; <+1704>
    0x19191fc5c <+456>:  ldr    x8, [x19, #432]
    0x19191fc60 <+460>:  ldr    x8, [x8, #48]
    0x19191fc64 <+464>:  ldr    x10, [x8, #80]
    0x19191fc68 <+468>:  cbz    x10, 0x1919203b8          ; <+2340>
    0x19191fc6c <+472>:  ldr    w8, [x10, #20]
    0x19191fc70 <+476>:  cbz    w8, 0x1919203b8           ; <+2340>
    0x19191fc74 <+480>:  movz   x22, #0
    0x19191fc78 <+484>:  movz   x27, #0
    0x19191fc7c <+488>:  str    x23, [sp, #8]
    0x19191fc80 <+492>:  mov    x23, x25
    0x19191fc84 <+496>:  mov    x25, x28
    0x19191fc88 <+500>:  ldr    x28, [x10, #8]
    0x19191fc8c <+504>:  ldr    x20, [x28, x22]
    0x19191fc90 <+508>:  cbz    x20, 0x19191fd00          ; <+620>
    0x19191fc94 <+512>:  ldrb   w8, [x20, #12]
    0x19191fc98 <+516>:  tbz    w8, #1, 0x19191fd00       ; <+620>
    0x19191fc9c <+520>:  mov    x21, x10
    0x19191fca0 <+524>:  bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x19191fca4 <+528>:  mov    x2, x0
    0x19191fca8 <+532>:  sub    x8, x29, #104
    0x19191fcac <+536>:  mov    x0, x19
    0x19191fcb0 <+540>:  mov    x1, x20
    0x19191fcb4 <+544>:  bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x19191fcb8 <+548>:  mov    x10, x21
    0x19191fcbc <+552>:  ldur   x9, [x29, #-104]
    0x19191fcc0 <+556>:  stur   xzr, [x29, #-104]
    0x19191fcc4 <+560>:  ldr    x8, [x28, x22]
    0x19191fcc8 <+564>:  str    x9, [x28, x22]
    0x19191fccc <+568>:  cbz    x8, 0x19191fd00           ; <+620>
    0x19191fcd0 <+572>:  ldr    w9, [x8, #8]!
    0x19191fcd4 <+576>:  sub    w9, w9, #1
    0x19191fcd8 <+580>:  cbz    w9, 0x19191fce4           ; <+592>
    0x19191fcdc <+584>:  str    w9, [x8]
    0x19191fce0 <+588>:  b      0x19191fd00               ; <+620>
    0x19191fce4 <+592>:  sub    x0, x8, #8
    0x19191fce8 <+596>:  cbz    x0, 0x19191fd00           ; <+620>
    0x19191fcec <+600>:  ldr    x8, [x0]
    0x19191fcf0 <+604>:  ldr    x8, [x8, #8]
    0x19191fcf4 <+608>:  mov    x20, x10
    0x19191fcf8 <+612>:  blr    x8
    0x19191fcfc <+616>:  mov    x10, x20
    0x19191fd00 <+620>:  add    x27, x27, #1
    0x19191fd04 <+624>:  ldr    w8, [x10, #20]
    0x19191fd08 <+628>:  add    x22, x22, #16
    0x19191fd0c <+632>:  cmp    x27, x8
    0x19191fd10 <+636>:  mov    x28, x25
    0x19191fd14 <+640>:  mov    x25, x23
    0x19191fd18 <+644>:  ldr    x23, [sp, #8]
    0x19191fd1c <+648>:  b.lo   0x19191fc7c               ; <+488>
    0x19191fd20 <+652>:  b      0x1919203b8               ; <+2340>
    0x19191fd24 <+656>:  cmp    w8, #284
    0x19191fd28 <+660>:  b.ne   0x19191ffa0               ; <+1292>
    0x19191fd2c <+664>:  ldr    x20, [x19, #432]
    0x19191fd30 <+668>:  ldr    x8, [x20, #40]
    0x19191fd34 <+672>:  ldr    x8, [x8, #208]
    0x19191fd38 <+676>:  ldr    x21, [x8, #8]
    0x19191fd3c <+680>:  cbz    x21, 0x1919203b8          ; <+2340>
    0x19191fd40 <+684>:  ldrb   w8, [x21, #12]
    0x19191fd44 <+688>:  tbz    w8, #1, 0x1919203b8       ; <+2340>
    0x19191fd48 <+692>:  bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x19191fd4c <+696>:  mov    x2, x0
    0x19191fd50 <+700>:  add    x22, sp, #88
    0x19191fd54 <+704>:  mov    x8, x22
    0x19191fd58 <+708>:  mov    x0, x19
    0x19191fd5c <+712>:  mov    x1, x21
    0x19191fd60 <+716>:  bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x19191fd64 <+720>:  mov    x0, x20
    0x19191fd68 <+724>:  mov    x1, x22
    0x19191fd6c <+728>:  bl     0x191c7db08               ; WebCore::RenderStyle::setMaskBoxImageSource(***::PassRefPtr<WebCore::StyleImage>)
    0x19191fd70 <+732>:  ldr    x8, [sp, #88]
    0x19191fd74 <+736>:  cbz    x8, 0x1919203b8           ; <+2340>
    0x19191fd78 <+740>:  ldr    w9, [x8, #8]!
    0x19191fd7c <+744>:  sub    w9, w9, #1
    0x19191fd80 <+748>:  cbz    w9, 0x1919203a4           ; <+2320>
    0x19191fd84 <+752>:  str    w9, [x8]
    0x19191fd88 <+756>:  b      0x1919203b8               ; <+2340>
    0x19191fd8c <+760>:  cmp    w8, #216
    0x19191fd90 <+764>:  b.ne   0x1919203b8               ; <+2340>
    0x19191fd94 <+768>:  ldr    x8, [x19, #432]
    0x19191fd98 <+772>:  ldr    x8, [x8, #40]
    0x19191fd9c <+776>:  ldr    x22, [x8, #128]
    0x19191fda0 <+780>:  cbz    x22, 0x1919203b8          ; <+2340>
    0x19191fda4 <+784>:  ldr    x8, [x22, #16]
    0x19191fda8 <+788>:  ldr    x20, [x8, #8]
    0x19191fdac <+792>:  cbz    x20, 0x1919203b8          ; <+2340>
    0x19191fdb0 <+796>:  ldrb   w8, [x20, #12]
    0x19191fdb4 <+800>:  tbz    w8, #1, 0x1919203b8       ; <+2340>
    0x19191fdb8 <+804>:  bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x19191fdbc <+808>:  mov    x2, x0
    0x19191fdc0 <+812>:  sub    x8, x29, #128
    0x19191fdc4 <+816>:  mov    x0, x19
    0x19191fdc8 <+820>:  mov    x1, x20
    0x19191fdcc <+824>:  bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x19191fdd0 <+828>:  ldur   x8, [x29, #-128]
    0x19191fdd4 <+832>:  stur   xzr, [x29, #-128]
    0x19191fdd8 <+836>:  stur   x8, [x29, #-144]
    0x19191fddc <+840>:  ldr    x21, [x22, #16]
    0x19191fde0 <+844>:  ldrb   w8, [x21, #21]
    0x19191fde4 <+848>:  cmp    w8, #10
    0x19191fde8 <+852>:  b.ne   0x19191fdf4               ; <+864>
    0x19191fdec <+856>:  add    x0, x21, #16
    0x19191fdf0 <+860>:  bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fdf4 <+864>:  ldr    x8, [x21, #16]
    0x19191fdf8 <+868>:  str    x8, [sp, #160]
    0x19191fdfc <+872>:  ldrb   w8, [x21, #29]
    0x19191fe00 <+876>:  cmp    w8, #10
    0x19191fe04 <+880>:  b.ne   0x19191fe10               ; <+892>
    0x19191fe08 <+884>:  add    x0, x21, #24
    0x19191fe0c <+888>:  bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fe10 <+892>:  ldr    x8, [x21, #24]
    0x19191fe14 <+896>:  str    x8, [sp, #168]
    0x19191fe18 <+900>:  ldrb   w8, [x21, #37]
    0x19191fe1c <+904>:  cmp    w8, #10
    0x19191fe20 <+908>:  b.ne   0x19191fe2c               ; <+920>
    0x19191fe24 <+912>:  add    x0, x21, #32
    0x19191fe28 <+916>:  bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fe2c <+920>:  ldr    x8, [x21, #32]
    0x19191fe30 <+924>:  str    x8, [sp, #176]
    0x19191fe34 <+928>:  add    x20, x21, #40
    0x19191fe38 <+932>:  ldrb   w8, [x21, #45]
    0x19191fe3c <+936>:  cmp    w8, #10
    0x19191fe40 <+940>:  b.ne   0x19191fe4c               ; <+952>
    0x19191fe44 <+944>:  mov    x0, x20
    0x19191fe48 <+948>:  bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fe4c <+952>:  ldr    x8, [x20]
    0x19191fe50 <+956>:  str    x8, [sp, #184]
    0x19191fe54 <+960>:  ldr    x27, [x22, #16]
    0x19191fe58 <+964>:  ldrb   w21, [x27, #4]
    0x19191fe5c <+968>:  ldrb   w8, [x27, #53]
    0x19191fe60 <+972>:  cmp    w8, #10
    0x19191fe64 <+976>:  b.ne   0x19191fe70               ; <+988>
    0x19191fe68 <+980>:  add    x0, x27, #48
    0x19191fe6c <+984>:  bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fe70 <+988>:  ldr    x8, [x27, #48]
    0x19191fe74 <+992>:  str    x8, [sp, #128]
    0x19191fe78 <+996>:  ldrb   w8, [x27, #61]
    0x19191fe7c <+1000>: cmp    w8, #10
    0x19191fe80 <+1004>: b.ne   0x19191fe8c               ; <+1016>
    0x19191fe84 <+1008>: add    x0, x27, #56
    0x19191fe88 <+1012>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fe8c <+1016>: ldr    x8, [x27, #56]
    0x19191fe90 <+1020>: str    x8, [sp, #136]
    0x19191fe94 <+1024>: ldrb   w8, [x27, #69]
    0x19191fe98 <+1028>: cmp    w8, #10
    0x19191fe9c <+1032>: b.ne   0x19191fea8               ; <+1044>
    0x19191fea0 <+1036>: add    x0, x27, #64
    0x19191fea4 <+1040>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fea8 <+1044>: ldr    x8, [x27, #64]
    0x19191feac <+1048>: str    x8, [sp, #144]
    0x19191feb0 <+1052>: add    x20, x27, #72
    0x19191feb4 <+1056>: ldrb   w8, [x27, #77]
    0x19191feb8 <+1060>: cmp    w8, #10
    0x19191febc <+1064>: b.ne   0x19191fec8               ; <+1076>
    0x19191fec0 <+1068>: mov    x0, x20
    0x19191fec4 <+1072>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fec8 <+1076>: ldr    x8, [x20]
    0x19191fecc <+1080>: str    x8, [sp, #152]
    0x19191fed0 <+1084>: ldr    x27, [x22, #16]
    0x19191fed4 <+1088>: ldrb   w8, [x27, #85]
    0x19191fed8 <+1092>: cmp    w8, #10
    0x19191fedc <+1096>: b.ne   0x19191fee8               ; <+1108>
    0x19191fee0 <+1100>: add    x0, x27, #80
    0x19191fee4 <+1104>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191fee8 <+1108>: ldr    x8, [x27, #80]
    0x19191feec <+1112>: str    x8, [sp, #96]
    0x19191fef0 <+1116>: ldrb   w8, [x27, #93]
    0x19191fef4 <+1120>: cmp    w8, #10
    0x19191fef8 <+1124>: b.ne   0x19191ff04               ; <+1136>
    0x19191fefc <+1128>: add    x0, x27, #88
    0x19191ff00 <+1132>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191ff04 <+1136>: and    w20, w21, #0x1
    0x19191ff08 <+1140>: ldr    x8, [x27, #88]
    0x19191ff0c <+1144>: str    x8, [sp, #104]
    0x19191ff10 <+1148>: ldrb   w8, [x27, #101]
    0x19191ff14 <+1152>: cmp    w8, #10
    0x19191ff18 <+1156>: b.ne   0x19191ff24               ; <+1168>
    0x19191ff1c <+1160>: add    x0, x27, #96
    0x19191ff20 <+1164>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191ff24 <+1168>: ldr    x8, [x27, #96]
    0x19191ff28 <+1172>: str    x8, [sp, #112]
    0x19191ff2c <+1176>: add    x21, x27, #104
    0x19191ff30 <+1180>: ldrb   w8, [x27, #109]
    0x19191ff34 <+1184>: cmp    w8, #10
    0x19191ff38 <+1188>: b.ne   0x19191ff44               ; <+1200>
    0x19191ff3c <+1192>: mov    x0, x21
    0x19191ff40 <+1196>: bl     0x1923034cc               ; WebCore::Length::ref() const
    0x19191ff44 <+1200>: ldr    x8, [x21]
    0x19191ff48 <+1204>: str    x8, [sp, #120]
    0x19191ff4c <+1208>: ldr    x8, [x22, #16]
    0x19191ff50 <+1212>: ldrb   w8, [x8, #4]
    0x19191ff54 <+1216>: ubfx   w6, w8, #1, #2
    0x19191ff58 <+1220>: ubfx   w7, w8, #3, #2
    0x19191ff5c <+1224>: sub    x0, x29, #136
    0x19191ff60 <+1228>: sub    x1, x29, #144
    0x19191ff64 <+1232>: add    x2, sp, #160
    0x19191ff68 <+1236>: add    x4, sp, #128
    0x19191ff6c <+1240>: add    x5, sp, #96
    0x19191ff70 <+1244>: mov    x3, x20
    0x19191ff74 <+1248>: bl     0x1923691d8               ; WebCore::NinePieceImage::NinePieceImage(***::PassRefPtr<WebCore::StyleImage>, WebCore::LengthBox, bool, WebCore::LengthBox, WebCore::LengthBox, WebCore::ENinePieceImageRule, WebCore::ENinePieceImageRule)
    0x19191ff78 <+1252>: ldur   x20, [x29, #-136]
    0x19191ff7c <+1256>: ldr    w8, [x20]
    0x19191ff80 <+1260>: add    w8, w8, #1
    0x19191ff84 <+1264>: str    w8, [x20]
    0x19191ff88 <+1268>: ldr    x0, [x22, #16]
    0x19191ff8c <+1272>: ldr    w8, [x0]
    0x19191ff90 <+1276>: sub    w8, w8, #1
    0x19191ff94 <+1280>: cbz    w8, 0x19192026c           ; <+2008>
    0x19191ff98 <+1284>: str    w8, [x0]
    0x19191ff9c <+1288>: b      0x191920274               ; <+2016>
    0x19191ffa0 <+1292>: cmp    w8, #288
    0x19191ffa4 <+1296>: b.ne   0x1919203b8               ; <+2340>
    0x19191ffa8 <+1300>: ldr    x21, [x19, #432]
    0x19191ffac <+1304>: ldr    x20, [x21, #40]
    0x19191ffb0 <+1308>: ldr    w8, [x20]
    0x19191ffb4 <+1312>: cmp    w8, #1
    0x19191ffb8 <+1316>: b.eq   0x1919201b0               ; <+1820>
    0x19191ffbc <+1320>: mov    x0, x20
    0x19191ffc0 <+1324>: bl     0x1925548b8               ; WebCore::StyleRareNonInheritedData::copy() const
    0x19191ffc4 <+1328>: mov    x20, x0
    0x19191ffc8 <+1332>: ldr    x0, [x21, #40]
    0x19191ffcc <+1336>: ldr    w8, [x0]
    0x19191ffd0 <+1340>: sub    w8, w8, #1
    0x19191ffd4 <+1344>: cbz    w8, 0x1919201a4           ; <+1808>
    0x19191ffd8 <+1348>: str    w8, [x0]
    0x19191ffdc <+1352>: b      0x1919201ac               ; <+1816>
    0x19191ffe0 <+1356>: add    x0, x21, #8
    0x19191ffe4 <+1360>: bl     0x191928cbc               ; WebCore::FillLayer::~FillLayer()
    0x19191ffe8 <+1364>: mov    x0, x21
    0x19191ffec <+1368>: bl     0x19277c984               ; symbol stub for: TIntermLoop::enqueueChildren(std::__1::queue<TIntermNode*, std::__1::deque<TIntermNode*, std::__1::allocator<TIntermNode*> > >*) const
    0x19191fff0 <+1372>: str    x20, [x22, #24]
    0x19191fff4 <+1376>: add    x21, x20, #8
->  0x19191fff8 <+1380>: ldr    x20, [x21, #8]
    0x19191fffc <+1384>: cbz    x20, 0x1919200a4          ; <+1552>
    0x191920000 <+1388>: ldrb   w8, [x20, #12]
    0x191920004 <+1392>: tbz    w8, #1, 0x1919200a4       ; <+1552>
    0x191920008 <+1396>: bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x19192000c <+1400>: mov    x2, x0
    0x191920010 <+1404>: sub    x8, x29, #88
    0x191920014 <+1408>: mov    x0, x19
    0x191920018 <+1412>: mov    x1, x20
    0x19192001c <+1416>: bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x191920020 <+1420>: ldur   x9, [x29, #-88]
    0x191920024 <+1424>: stur   xzr, [x29, #-88]
    0x191920028 <+1428>: ldr    x8, [x21, #8]
    0x19192002c <+1432>: str    x9, [x21, #8]
    0x191920030 <+1436>: cbz    x8, 0x19192005c           ; <+1480>
    0x191920034 <+1440>: ldr    w9, [x8, #8]!
    0x191920038 <+1444>: sub    w9, w9, #1
    0x19192003c <+1448>: cbz    w9, 0x191920048           ; <+1460>
    0x191920040 <+1452>: str    w9, [x8]
    0x191920044 <+1456>: b      0x19192005c               ; <+1480>
    0x191920048 <+1460>: sub    x0, x8, #8
    0x19192004c <+1464>: cbz    x0, 0x19192005c           ; <+1480>
    0x191920050 <+1468>: ldr    x8, [x0]
    0x191920054 <+1472>: ldr    x8, [x8, #8]
    0x191920058 <+1476>: blr    x8
    0x19192005c <+1480>: mov    x8, x21
    0x191920060 <+1484>: ldr    w9, [x8, #48]!
    0x191920064 <+1488>: ldrh   w10, [x8, #4]
    0x191920068 <+1492>: orr    w9, w9, #0x1000000
    0x19192006c <+1496>: strh   w10, [x8, #4]
    0x191920070 <+1500>: str    w9, [x8]
    0x191920074 <+1504>: ldur   x8, [x29, #-88]
    0x191920078 <+1508>: cbz    x8, 0x1919200a4           ; <+1552>
    0x19192007c <+1512>: ldr    w9, [x8, #8]!
    0x191920080 <+1516>: sub    w9, w9, #1
    0x191920084 <+1520>: cbz    w9, 0x191920090           ; <+1532>
    0x191920088 <+1524>: str    w9, [x8]
    0x19192008c <+1528>: b      0x1919200a4               ; <+1552>
    0x191920090 <+1532>: sub    x0, x8, #8
    0x191920094 <+1536>: cbz    x0, 0x1919200a4           ; <+1552>
    0x191920098 <+1540>: ldr    x8, [x0]
    0x19192009c <+1544>: ldr    x8, [x8, #8]
    0x1919200a0 <+1548>: blr    x8
    0x1919200a4 <+1552>: ldr    x21, [x21]
    0x1919200a8 <+1556>: cbnz   x21, 0x19191fff8          ; <+1380>
    0x1919200ac <+1560>: b      0x1919203b8               ; <+2340>
    0x1919200b0 <+1564>: ldr    x8, [x19, #432]
    0x1919200b4 <+1568>: ldr    x8, [x8, #40]
    0x1919200b8 <+1572>: ldr    x21, [x8, #96]
    0x1919200bc <+1576>: cbz    x21, 0x1919203b8          ; <+2340>
    0x1919200c0 <+1580>: ldr    w8, [x21, #24]
    0x1919200c4 <+1584>: cmp    w8, #1
    0x1919200c8 <+1588>: b.ne   0x191920130               ; <+1692>
    0x1919200cc <+1592>: ldr    x20, [x21, #32]
    0x1919200d0 <+1596>: ldrb   w8, [x20, #12]
    0x1919200d4 <+1600>: tbz    w8, #1, 0x191920130       ; <+1692>
    0x1919200d8 <+1604>: bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x1919200dc <+1608>: mov    x2, x0
    0x1919200e0 <+1612>: sub    x8, x29, #96
    0x1919200e4 <+1616>: mov    x0, x19
    0x1919200e8 <+1620>: mov    x1, x20
    0x1919200ec <+1624>: bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x1919200f0 <+1628>: ldur   x9, [x29, #-96]
    0x1919200f4 <+1632>: stur   xzr, [x29, #-96]
    0x1919200f8 <+1636>: cbz    x9, 0x191920130           ; <+1692>
    0x1919200fc <+1640>: ldr    x8, [x21, #32]
    0x191920100 <+1644>: str    x9, [x21, #32]
    0x191920104 <+1648>: cbz    x8, 0x191920130           ; <+1692>
    0x191920108 <+1652>: ldr    w9, [x8, #8]!
    0x19192010c <+1656>: sub    w9, w9, #1
    0x191920110 <+1660>: cbz    w9, 0x19192011c           ; <+1672>
    0x191920114 <+1664>: str    w9, [x8]
    0x191920118 <+1668>: b      0x191920130               ; <+1692>
    0x19192011c <+1672>: sub    x0, x8, #8
    0x191920120 <+1676>: cbz    x0, 0x191920130           ; <+1692>
    0x191920124 <+1680>: ldr    x8, [x0]
    0x191920128 <+1684>: ldr    x8, [x8, #8]
    0x19192012c <+1688>: blr    x8
    0x191920130 <+1692>: ldr    x21, [x21, #8]
    0x191920134 <+1696>: cbnz   x21, 0x1919200c0          ; <+1580>
    0x191920138 <+1700>: b      0x1919203b8               ; <+2340>
    0x19192013c <+1704>: cmp    w8, #88
    0x191920140 <+1708>: b.ne   0x1919203b8               ; <+2340>
    0x191920144 <+1712>: ldr    x0, [x19, #432]
    0x191920148 <+1716>: bl     0x191a97fc8               ; WebCore::RenderStyle::listStyleImage() const
    0x19192014c <+1720>: mov    x20, x0
    0x191920150 <+1724>: cbz    x20, 0x1919203b8          ; <+2340>
    0x191920154 <+1728>: ldrb   w8, [x20, #12]
    0x191920158 <+1732>: tbz    w8, #1, 0x1919203b8       ; <+2340>
    0x19192015c <+1736>: ldr    x22, [x19, #432]
    0x191920160 <+1740>: bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x191920164 <+1744>: mov    x2, x0
    0x191920168 <+1748>: sub    x21, x29, #112
    0x19192016c <+1752>: mov    x8, x21
    0x191920170 <+1756>: mov    x0, x19
    0x191920174 <+1760>: mov    x1, x20
    0x191920178 <+1764>: bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x19192017c <+1768>: mov    x0, x22
    0x191920180 <+1772>: mov    x1, x21
    0x191920184 <+1776>: bl     0x191927004               ; WebCore::RenderStyle::setListStyleImage(***::PassRefPtr<WebCore::StyleImage>)
    0x191920188 <+1780>: ldur   x8, [x29, #-112]
    0x19192018c <+1784>: cbz    x8, 0x1919203b8           ; <+2340>
    0x191920190 <+1788>: ldr    w9, [x8, #8]!
    0x191920194 <+1792>: sub    w9, w9, #1
    0x191920198 <+1796>: cbz    w9, 0x1919203a4           ; <+2320>
    0x19192019c <+1800>: str    w9, [x8]
    0x1919201a0 <+1804>: b      0x1919203b8               ; <+2340>
    0x1919201a4 <+1808>: bl     0x191930b54               ; WebCore::StyleRareNonInheritedData::~StyleRareNonInheritedData()
    0x1919201a8 <+1812>: bl     0x19277c984               ; symbol stub for: TIntermLoop::enqueueChildren(std::__1::queue<TIntermNode*, std::__1::deque<TIntermNode*, std::__1::allocator<TIntermNode*> > >*) const
    0x1919201ac <+1816>: str    x20, [x21, #40]
    0x1919201b0 <+1820>: add    x21, x20, #152
    0x1919201b4 <+1824>: ldr    x20, [x21, #8]
    0x1919201b8 <+1828>: cbz    x20, 0x191920260          ; <+1996>
    0x1919201bc <+1832>: ldrb   w8, [x20, #12]
    0x1919201c0 <+1836>: tbz    w8, #1, 0x191920260       ; <+1996>
    0x1919201c4 <+1840>: bl     0x1919419f8               ; WebCore::CachedResourceLoader::defaultCachedResourceOptions()
    0x1919201c8 <+1844>: mov    x2, x0
    0x1919201cc <+1848>: add    x8, sp, #80
    0x1919201d0 <+1852>: mov    x0, x19
    0x1919201d4 <+1856>: mov    x1, x20
    0x1919201d8 <+1860>: bl     0x1925591ec               ; WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&)
    0x1919201dc <+1864>: ldr    x9, [sp, #80]
    0x1919201e0 <+1868>: str    xzr, [sp, #80]
    0x1919201e4 <+1872>: ldr    x8, [x21, #8]
    0x1919201e8 <+1876>: str    x9, [x21, #8]
    0x1919201ec <+1880>: cbz    x8, 0x191920218           ; <+1924>
    0x1919201f0 <+1884>: ldr    w9, [x8, #8]!
    0x1919201f4 <+1888>: sub    w9, w9, #1
    0x1919201f8 <+1892>: cbz    w9, 0x191920204           ; <+1904>
    0x1919201fc <+1896>: str    w9, [x8]
    0x191920200 <+1900>: b      0x191920218               ; <+1924>
    0x191920204 <+1904>: sub    x0, x8, #8
    0x191920208 <+1908>: cbz    x0, 0x191920218           ; <+1924>
    0x19192020c <+1912>: ldr    x8, [x0]
    0x191920210 <+1916>: ldr    x8, [x8, #8]
    0x191920214 <+1920>: blr    x8
    0x191920218 <+1924>: mov    x8, x21
    0x19192021c <+1928>: ldr    w9, [x8, #48]!
    0x191920220 <+1932>: ldrh   w10, [x8, #4]
    0x191920224 <+1936>: orr    w9, w9, #0x1000000
    0x191920228 <+1940>: strh   w10, [x8, #4]
    0x19192022c <+1944>: str    w9, [x8]
    0x191920230 <+1948>: ldr    x8, [sp, #80]
    0x191920234 <+1952>: cbz    x8, 0x191920260           ; <+1996>
    0x191920238 <+1956>: ldr    w9, [x8, #8]!
    0x19192023c <+1960>: sub    w9, w9, #1
    0x191920240 <+1964>: cbz    w9, 0x19192024c           ; <+1976>
    0x191920244 <+1968>: str    w9, [x8]
    0x191920248 <+1972>: b      0x191920260               ; <+1996>
    0x19192024c <+1976>: sub    x0, x8, #8
    0x191920250 <+1980>: cbz    x0, 0x191920260           ; <+1996>
    0x191920254 <+1984>: ldr    x8, [x0]
    0x191920258 <+1988>: ldr    x8, [x8, #8]
    0x19192025c <+1992>: blr    x8
    0x191920260 <+1996>: ldr    x21, [x21]
    0x191920264 <+2000>: cbnz   x21, 0x1919201b4          ; <+1824>
    0x191920268 <+2004>: b      0x1919203b8               ; <+2340>
    0x19192026c <+2008>: bl     0x19192e2b4               ; WebCore::NinePieceImageData::~NinePieceImageData()
    0x191920270 <+2012>: bl     0x19277c984               ; symbol stub for: TIntermLoop::enqueueChildren(std::__1::queue<TIntermNode*, std::__1::deque<TIntermNode*, std::__1::allocator<TIntermNode*> > >*) const
    0x191920274 <+2016>: str    x20, [x22, #16]
    0x191920278 <+2020>: ldur   x0, [x29, #-136]
    0x19192027c <+2024>: ldr    w8, [x0]
    0x191920280 <+2028>: sub    w8, w8, #1
    0x191920284 <+2032>: cbz    w8, 0x191920290           ; <+2044>
    0x191920288 <+2036>: str    w8, [x0]
    0x19192028c <+2040>: b      0x191920298               ; <+2052>
    0x191920290 <+2044>: bl     0x19192e2b4               ; WebCore::NinePieceImageData::~NinePieceImageData()
    0x191920294 <+2048>: bl     0x19277c984               ; symbol stub for: TIntermLoop::enqueueChildren(std::__1::queue<TIntermNode*, std::__1::deque<TIntermNode*, std::__1::allocator<TIntermNode*> > >*) const
    0x191920298 <+2052>: ldrb   w8, [sp, #125]
    0x19192029c <+2056>: cmp    w8, #10
    0x1919202a0 <+2060>: b.ne   0x1919202ac               ; <+2072>
    0x1919202a4 <+2064>: ldr    x0, [sp, #16]
    0x1919202a8 <+2068>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x1919202ac <+2072>: ldrb   w8, [sp, #117]
    0x1919202b0 <+2076>: cmp    w8, #10
    0x1919202b4 <+2080>: b.ne   0x1919202c0               ; <+2092>
    0x1919202b8 <+2084>: ldr    x0, [sp, #24]
    0x1919202bc <+2088>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x1919202c0 <+2092>: ldrb   w8, [sp, #109]
    0x1919202c4 <+2096>: cmp    w8, #10
    0x1919202c8 <+2100>: b.ne   0x1919202d4               ; <+2112>
    0x1919202cc <+2104>: ldr    x0, [sp, #32]
    0x1919202d0 <+2108>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x1919202d4 <+2112>: ldrb   w8, [sp, #101]
    0x1919202d8 <+2116>: cmp    w8, #10
    0x1919202dc <+2120>: b.ne   0x1919202e8               ; <+2132>
    0x1919202e0 <+2124>: add    x0, sp, #96
    0x1919202e4 <+2128>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x1919202e8 <+2132>: ldrb   w8, [sp, #157]
    0x1919202ec <+2136>: cmp    w8, #10
    0x1919202f0 <+2140>: b.ne   0x1919202fc               ; <+2152>
    0x1919202f4 <+2144>: ldr    x0, [sp, #40]
    0x1919202f8 <+2148>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x1919202fc <+2152>: ldrb   w8, [sp, #149]
    0x191920300 <+2156>: cmp    w8, #10
    0x191920304 <+2160>: b.ne   0x191920310               ; <+2172>
    0x191920308 <+2164>: ldr    x0, [sp, #48]
    0x19192030c <+2168>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920310 <+2172>: ldrb   w8, [sp, #141]
    0x191920314 <+2176>: cmp    w8, #10
    0x191920318 <+2180>: b.ne   0x191920324               ; <+2192>
    0x19192031c <+2184>: ldr    x0, [sp, #56]
    0x191920320 <+2188>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920324 <+2192>: ldrb   w8, [sp, #133]
    0x191920328 <+2196>: cmp    w8, #10
    0x19192032c <+2200>: b.ne   0x191920338               ; <+2212>
    0x191920330 <+2204>: add    x0, sp, #128
    0x191920334 <+2208>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920338 <+2212>: ldrb   w8, [sp, #189]
    0x19192033c <+2216>: cmp    w8, #10
    0x191920340 <+2220>: b.ne   0x19192034c               ; <+2232>
    0x191920344 <+2224>: ldr    x0, [sp, #64]
    0x191920348 <+2228>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x19192034c <+2232>: ldrb   w8, [sp, #181]
    0x191920350 <+2236>: cmp    w8, #10
    0x191920354 <+2240>: b.ne   0x191920360               ; <+2252>
    0x191920358 <+2244>: ldr    x0, [sp, #72]
    0x19192035c <+2248>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920360 <+2252>: ldrb   w8, [sp, #173]
    0x191920364 <+2256>: cmp    w8, #10
    0x191920368 <+2260>: b.ne   0x191920374               ; <+2272>
    0x19192036c <+2264>: mov    x0, x28
    0x191920370 <+2268>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920374 <+2272>: ldrb   w8, [sp, #165]
    0x191920378 <+2276>: cmp    w8, #10
    0x19192037c <+2280>: b.ne   0x191920388               ; <+2292>
    0x191920380 <+2284>: add    x0, sp, #160
    0x191920384 <+2288>: bl     0x19230353c               ; WebCore::Length::deref() const
    0x191920388 <+2292>: ldur   x8, [x29, #-144]
    0x19192038c <+2296>: cbz    x8, 0x1919203b8           ; <+2340>
    0x191920390 <+2300>: ldr    w9, [x8, #8]!
    0x191920394 <+2304>: sub    w9, w9, #1
    0x191920398 <+2308>: cbz    w9, 0x1919203a4           ; <+2320>
    0x19192039c <+2312>: str    w9, [x8]
    0x1919203a0 <+2316>: b      0x1919203b8               ; <+2340>
    0x1919203a4 <+2320>: sub    x0, x8, #8
    0x1919203a8 <+2324>: cbz    x0, 0x1919203b8           ; <+2340>
    0x1919203ac <+2328>: ldr    x8, [x0]
    0x1919203b0 <+2332>: ldr    x8, [x8, #8]
    0x1919203b4 <+2336>: blr    x8
    0x1919203b8 <+2340>: add    x24, x24, #16
    0x1919203bc <+2344>: cmp    x24, x25
    0x1919203c0 <+2348>: b.eq   0x1919203ec               ; <+2392>
    0x1919203c4 <+2352>: ldr    w8, [x24]
    0x1919203c8 <+2356>: cbz    w8, 0x1919203d4           ; <+2368>
    0x1919203cc <+2360>: cmp    w8, #401
    0x1919203d0 <+2364>: b.ne   0x1919203e4               ; <+2384>
    0x1919203d4 <+2368>: add    x24, x24, #16
    0x1919203d8 <+2372>: cmp    x26, x24
    0x1919203dc <+2376>: b.ne   0x1919203c4               ; <+2352>
    0x1919203e0 <+2380>: b      0x1919203ec               ; <+2392>
    0x1919203e4 <+2384>: cmp    x26, x24
    0x1919203e8 <+2388>: b.ne   0x19191fb58               ; <+196>
    0x1919203ec <+2392>: ldr    x20, [x23]
    0x1919203f0 <+2396>: cbz    x20, 0x19192044c          ; <+2488>
    0x1919203f4 <+2400>: ldr    w19, [x19, #488]
    0x1919203f8 <+2404>: cmp    w19, #1
    0x1919203fc <+2408>: b.lt   0x19192043c               ; <+2472>
    0x191920400 <+2412>: add    x21, x20, #8
    0x191920404 <+2416>: ldur   w8, [x21, #-8]
    0x191920408 <+2420>: cmp    w8, #401
    0x19192040c <+2424>: b.eq   0x191920430               ; <+2460>
    0x191920410 <+2428>: ldr    x0, [x21]
    0x191920414 <+2432>: cbz    x0, 0x191920430           ; <+2460>
    0x191920418 <+2436>: ldr    w8, [x0]
    0x19192041c <+2440>: sub    w8, w8, #1
    0x191920420 <+2444>: cbz    w8, 0x19192042c           ; <+2456>
    0x191920424 <+2448>: str    w8, [x0]
    0x191920428 <+2452>: b      0x191920430               ; <+2460>
    0x19192042c <+2456>: bl     0x19198268c               ; WebCore::CSSValue::destroy()
    0x191920430 <+2460>: sub    w19, w19, #1
    0x191920434 <+2464>: add    x21, x21, #16
    0x191920438 <+2468>: cbnz   w19, 0x191920404          ; <+2416>
    0x19192043c <+2472>: mov    x0, x20
    0x191920440 <+2476>: bl     0x19277c984               ; symbol stub for: TIntermLoop::enqueueChildren(std::__1::queue<TIntermNode*, std::__1::deque<TIntermNode*, std::__1::allocator<TIntermNode*> > >*) const
    0x191920444 <+2480>: str    wzr, [x23, #16]
    0x191920448 <+2484>: stp    xzr, xzr, [x23]
    0x19192044c <+2488>: sub    sp, x29, #80
    0x191920450 <+2492>: ldp    x29, x30, [sp, #80]
    0x191920454 <+2496>: ldp    x20, x19, [sp, #64]
    0x191920458 <+2500>: ldp    x22, x21, [sp, #48]
    0x19192045c <+2504>: ldp    x24, x23, [sp, #32]
    0x191920460 <+2508>: ldp    x26, x25, [sp, #16]
    0x191920464 <+2512>: ldp    x28, x27, [sp], #96
    0x191920468 <+2516>: ret 


how to solve

There is not enough detail here to even hazard a guess.

First question, is this tied to the site or to your app? That is, if you create a small test app that holds just a UIWebView and load the same site into that, does it crash in the same way?

Share and Enjoy

Quinn "The Eskimo!"
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"
iOS8 webcore error
 
 
Q