Crash on Android since 16kB Memory Alignment #331
Description
Since the library changed to the 16kB Alignment, I get random crashes based on null pointer (see log below). It works when the first document is loaded. Once the same document gets reloaded the app crashes. It is the same behaviour one emulators and physical devices running the latest Android Versions (15+).
Flutter Code:
return PDFView(
pageFling: false,
pageSnap: false,
autoSpacing: true,
fitPolicy: FitPolicy.BOTH,
fitEachPage: false,
onRender: (pages) {
setState(() {
_isLoading = false;
});
},
pdfData: bytes
);F/libc (11956): Fatal signal 5 (SIGTRAP), code 128 (SI_KERNEL), fault addr 0x0 in tid 12027 (AsyncTask #1), pid 11956 (<app>)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'google/sdk_gphone64_x86_64/emu64xa:15/AE3A.240806.036/12592187:user/release-keys'
Revision: '0'
ABI: 'x86_64'
Timestamp: 2026-01-21 14:58:45.316278900+0100
Process uptime: 100s
Cmdline: <app>
pid: 11956, tid: 12027, name: AsyncTask #1 >>> <app> <<<
uid: 10219
signal 5 (SIGTRAP), code 128 (SI_KERNEL), fault addr 0x0000000000000000
rax 0000000000000001 rbx 000072692c8c9eb0 rcx 6d12921bbc429621 rdx 0000000000000002
r8 00007ffe860f0080 r9 00007ffe860f00a0 r10 00000000001aebb8 r11 0000000000000213
r12 000072680914c300 r13 000072680914c20c r14 000072691ca157d0 r15 0000000000000000
rdi 000072680914bc3c rsi 000072680914a910
rbp 000072680914c0b0 rsp 000072680914c088 rip 000072676393d4cd
43 total frames
backtrace:
#00 pc 00000000002374cd /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/lib/x86_64/libpdfium.so (BuildId: a6a42a6505013717)
#01 pc 0000000000350753 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/lib/x86_64/libpdfium.so (FPDF_InitLibrary+19) (BuildId: a6a42a6505013717)
#02 pc 0000000000004302 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/lib/x86_64/libjniPdfium.so (DocumentFile::DocumentFile()+66) (BuildId: f2944f5d57f6d35e75207f7b1275e111d10e74da)
#03 pc 00000000000043db /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/lib/x86_64/libjniPdfium.so (Java_com_shockwave_pdfium_PdfiumCore_nativeOpenMemDocument+59) (BuildId: f2944f5d57f6d35e75207f7b1275e111d10e74da)
#04 pc 000000000022b5eb /apex/com.android.art/lib64/libart.so (art_quick_generic_jni_trampoline+219) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#05 pc 0000000000212154 /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+756) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#06 pc 0000000000474bf5 /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+181) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#07 pc 00000000005f92f3 /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, bool, art::JValue*)+2339) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#08 pc 0000000000233101 /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<false>(art::interpreter::SwitchImplContext*)+14913) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#09 pc 000000000022d2e5 /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+5) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#10 pc 00000000003e21e0 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/base.apk (com.shockwave.pdfium.PdfiumCore.newDocument+0)
#11 pc 00000000005f1de9 /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.__uniq.112435418011751916792819755956732575238)+505) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#12 pc 00000000005f85f7 /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+103) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#13 pc 00000000005f92d9 /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, bool, art::JValue*)+2313) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#14 pc 0000000000233101 /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<false>(art::interpreter::SwitchImplContext*)+14913) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#15 pc 000000000022d2e5 /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+5) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#16 pc 000000000038ff30 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/base.apk (com.github.barteksc.pdfviewer.source.ByteArraySource.createDocument+0)
#17 pc 00000000005f1de9 /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.__uniq.112435418011751916792819755956732575238)+505) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#18 pc 00000000005f85f7 /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+103) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#19 pc 00000000005f92d9 /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, bool, art::JValue*)+2313) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#20 pc 0000000000233101 /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<false>(art::interpreter::SwitchImplContext*)+14913) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#21 pc 000000000022d2e5 /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+5) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#22 pc 000000000038a840 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/base.apk (com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground+0)
#23 pc 00000000005f1de9 /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.__uniq.112435418011751916792819755956732575238)+505) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#24 pc 00000000005f85f7 /apex/com.android.art/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+103) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#25 pc 00000000005f92d9 /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, bool, art::JValue*)+2313) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#26 pc 0000000000233101 /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<false>(art::interpreter::SwitchImplContext*)+14913) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#27 pc 000000000022d2e5 /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+5) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#28 pc 000000000038a820 /data/app/~~sS9OMZYhiJXs0fQp7ma_Og==/app.my-Bl2ZphnCEwTGTCAjEK6KQw==/base.apk (com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground+0)
#29 pc 00000000005f1de9 /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.__uniq.112435418011751916792819755956732575238)+505) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#30 pc 0000000000987e6e /apex/com.android.art/lib64/libart.so (artQuickToInterpreterBridge+958) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#31 pc 000000000022b77c /apex/com.android.art/lib64/libart.so (art_quick_to_interpreter_bridge+140) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#32 pc 0000000000262f47 [anon_shmem:dalvik-jit-code-cache] (offset 0x2000000) (android.os.AsyncTask$3.call+215)
#33 pc 000000000013e3c0 [anon_shmem:dalvik-jit-code-cache] (offset 0x2000000) (java.util.concurrent.FutureTask.run+368)
#34 pc 000000000013c344 [anon_shmem:dalvik-jit-code-cache] (offset 0x2000000) (java.util.concurrent.ThreadPoolExecutor.runWorker+452)
#35 pc 000000000013c0ba [anon_shmem:dalvik-jit-code-cache] (offset 0x2000000) (java.util.concurrent.ThreadPoolExecutor$Worker.run+154)
#36 pc 0000000000004cd8 [anon_shmem:dalvik-jit-code-cache] (offset 0x2000000) (java.lang.Thread.run+168)
#37 pc 0000000000212154 /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+756) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#38 pc 0000000000474bf5 /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+181) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#39 pc 00000000008c5cc3 /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+1427) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#40 pc 00000000008c5725 /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallbackWithUffdGc(void*)+5) (BuildId: 62338b1c62e3991543c9b8b8bae2b361)
#41 pc 000000000006d62a /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+58) (BuildId: eb58b4d427279994f00c0e1818477e4f)
#42 pc 0000000000060348 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+56) (BuildId: eb58b4d427279994f00c0e1818477e4f)