Disabling *cppgc_enable_pointer_compression* will hopefully give you a hint about what/where to look for. I'm rather suggesting to figure out where that address space limitation is coming from. Maybe there's something special with the Android devices that fail to initialize V8 or something. Oilpan pointer compression was enabled around 2023 and since we don't test all possible build configurations, this configuration might be undertested.
On Thu, Oct 30, 2025 at 6:54 PM 'Mati Cohen' via v8-users < [email protected]> wrote: > Thank you very much Igor. Yes, sorry, I meant reserve. > > I thought the issue was that, by default, we are now trying to reserve > 16GB, thus my idea of disabling *cppgc_enable_larger_cage*. Do you > suggest to just disable *cppgc_enable_pointer_compression* (and no > changes to the cage configuration)? > > Thanks again! > > On Thursday, October 30, 2025 at 1:48:37 PM UTC-4 [email protected] wrote: > >> Hello, >> >> It seems that V8 crashes because it can't reserve (not allocate!) an 4GB >> of address space for a pointer compression cage for Oilpan. Not sure why >> this happens in your case (Chrome works just fine on Android), looks like >> there's some system limit on allowed address space reservations for a >> process. >> As a workaround, you could try to disable Oilpan pointer compression by >> setting this GN argument: cppgc_enable_pointer_compression=false. >> >> On Thu, Oct 30, 2025 at 4:34 PM 'Mati Cohen' via v8-users < >> [email protected]> wrote: >> >>> Hey, unfortunately this issue has become critical in production. I had >>> to halt the release. >>> >>> Can I get some help please? >>> >>> I am not sure if my theory is right since I am not able to reproduce the >>> crash to verify it. >>> >>> Thank you in advance. >>> >>> On Wednesday, October 29, 2025 at 2:04:01 PM UTC-4 Mati Cohen wrote: >>> >>>> >>>> I see some changes related to how much heap is allocated to Oilpan. >>>> Now, default seems to be 16GB (whereas it used to be 4GB). Could it be an >>>> issue for Android devices? >>>> I am rebuilding now with cppgc_enable_larger_cage=false. >>>> >>>> On Wednesday, October 29, 2025 at 9:48:43 AM UTC-4 Mati Cohen wrote: >>>> >>>>> Hi, >>>>> >>>>> I've created new builds for my Android app pointing to 14.0.365.4 (I >>>>> used to be on a version from 2022). >>>>> >>>>> Everything seems to be working properly on production, except from >>>>> a FatalOOM crash that we are unable to explain. According to Firebase >>>>> crashing devices have enough memory (more than 400MB) and the crash takes >>>>> place immediately after we call V8::Initialize(). >>>>> >>>>> Here is the full stacktrace: >>>>> >>>>> #00 pc 0x1329140 (v8::base::OS::Abort() >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #01 pc 0x132c898 (v8::base::FatalOOM(v8::base::OOMType, char const*) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #02 pc 0x13396f8 >>>>> (v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char >>>>> const*, v8::OOMDetails const&) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #03 pc 0x14c2acc (v8::internal::(anonymous >>>>> namespace)::GlobalFatalOutOfMemoryHandlerImpl(std::__ndk1::basic_string<char, >>>>> std::__ndk1::char_traits<char>, std::__ndk1::allocator<char>> const&, >>>>> v8::SourceLocation const&, cppgc::internal::HeapBase*) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #04 pc 0x1e06c60 >>>>> (cppgc::internal::FatalOutOfMemoryHandler::operator()(std::__ndk1::basic_string<char, >>>>> std::__ndk1::char_traits<char>, std::__ndk1::allocator<char>> const&, >>>>> v8::SourceLocation const&) const >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #05 pc 0x1e0ff2c >>>>> (cppgc::internal::CagedHeap::CagedHeap(v8::PageAllocator&, unsigned long) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #06 pc 0x1e0fca8 >>>>> (cppgc::internal::CagedHeap::InitializeIfNeeded(v8::PageAllocator&, >>>>> unsigned long) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #07 pc 0x1e06d90 (cppgc::InitializeProcess(v8::PageAllocator*, >>>>> unsigned long) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #08 pc 0x1356aac (v8::V8::Initialize(int) >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/split_config.arm64_v8a.apk!liben8.so]) >>>>> (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #09 pc 0x13245f0 (Runtime::Runtime(_JNIEnv*) >>>>> [v8-initialization.h:127]) (BuildId: >>>>> df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #10 pc 0x131c090 (Java_com_encircle_en8_Runtime_en8Create >>>>> [en8.cpp:28]) (BuildId: df4010b9be1607b6935ef08e8d90830ac0ab4f0b) >>>>> #11 pc 0x2d357c (art_jni_trampoline >>>>> [/system/framework/arm64/boot.oat]) (BuildId: >>>>> 5f2f994dfe4014c6ca8efc57596b26a7e9120ce6) >>>>> #12 pc 0x9be120 >>>>> (com.encircle.jsenv.EventLoop$$ExternalSyntheticLambda7.run >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/oat/arm64/base.odex]) >>>>> #13 pc 0x9e41f4 (com.encircle.util.PrioritizedTask.run >>>>> [/data/app/~~tQAJjlgMcZP-x-50eIcSag==/com.encircle-f_MMozmE6xmMXhHJsIXUPw==/oat/arm64/base.odex]) >>>>> #14 pc 0x210b74 (java.util.concurrent.ThreadPoolExecutor.runWorker >>>>> [/system/framework/arm64/boot.oat]) (BuildId: >>>>> 5f2f994dfe4014c6ca8efc57596b26a7e9120ce6) >>>>> #15 pc 0x214b18 (java.util.concurrent.ThreadPoolExecutor$Worker.run >>>>> [/system/framework/arm64/boot.oat]) (BuildId: >>>>> 5f2f994dfe4014c6ca8efc57596b26a7e9120ce6) >>>>> #16 pc 0xa5500 (java.lang.Thread.run >>>>> [/system/framework/arm64/boot.oat]) (BuildId: >>>>> 5f2f994dfe4014c6ca8efc57596b26a7e9120ce6) >>>>> #17 pc 0x32d194 (art_quick_invoke_stub >>>>> [/apex/com.android.art/lib64/libart.so]) (BuildId: >>>>> 80d2ab18f9d259d8e546c1e6bae752b1) >>>>> #18 pc 0x2de270 (art::ArtMethod::Invoke(art::Thread*, unsigned int*, >>>>> unsigned int, art::JValue*, char const*) >>>>> [/apex/com.android.art/lib64/libart.so]) (BuildId: >>>>> 80d2ab18f9d259d8e546c1e6bae752b1) >>>>> #19 pc 0x4bfcf4 (art::Thread::CreateCallback(void*) >>>>> [/apex/com.android.art/lib64/libart.so]) (BuildId: >>>>> 80d2ab18f9d259d8e546c1e6bae752b1) >>>>> #20 pc 0x4bf940 (art::Thread::CreateCallbackWithUffdGc(void*) >>>>> [/apex/com.android.art/lib64/libart.so]) (BuildId: >>>>> 80d2ab18f9d259d8e546c1e6bae752b1) >>>>> #21 pc 0x82740 (__pthread_start(void*) >>>>> [/apex/com.android.runtime/lib64/bionic/libc.so]) (BuildId: >>>>> 61a049a7ad18156ebc52d8d483539df9) >>>>> #22 pc 0x74b98 (__start_thread >>>>> [/apex/com.android.runtime/lib64/bionic/libc.so]) (BuildId: >>>>> 61a049a7ad18156ebc52d8d483539df9) >>>>> >>>>> Is there any explanation for this? >>>>> >>>>> Thanks a lot! >>>>> >>>> -- >>> -- >>> v8-users mailing list >>> [email protected] >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion visit >>> https://groups.google.com/d/msgid/v8-users/266ccc03-ff09-466a-9cfa-73f6394685c2n%40googlegroups.com >>> <https://groups.google.com/d/msgid/v8-users/266ccc03-ff09-466a-9cfa-73f6394685c2n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> >> Igor Sheludko >> >> Software Engineer >> >> [email protected] >> >> >> Google Germany GmbH >> >> Erika-Mann-Straße 33 >> >> 80636 München >> >> >> Geschäftsführer: Paul Manicle, Liana Sebastian >> >> Registergericht und -nummer: Hamburg, HRB 86891 >> >> Sitz der Gesellschaft: Hamburg >> >> >> Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise erhalten >> haben sollten, leiten Sie diese bitte nicht an jemand anderes weiter, >> löschen Sie alle Kopien und Anhänge davon und lassen Sie mich bitte wissen, >> dass die E-Mail an die falsche Person gesendet wurde. >> >> >> >> This e-mail is confidential. If you received this communication by >> mistake, please don't forward it to anyone else, please erase all copies >> and attachments, and please let me know that it has gone to the wrong >> person. >> >> >> >> >> -- > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/v8-users/a0315db5-c82b-4d46-a546-9735afca8ae6n%40googlegroups.com > <https://groups.google.com/d/msgid/v8-users/a0315db5-c82b-4d46-a546-9735afca8ae6n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Igor Sheludko Software Engineer [email protected] Google Germany GmbH Erika-Mann-Straße 33 80636 München Geschäftsführer: Paul Manicle, Liana Sebastian Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise erhalten haben sollten, leiten Sie diese bitte nicht an jemand anderes weiter, löschen Sie alle Kopien und Anhänge davon und lassen Sie mich bitte wissen, dass die E-Mail an die falsche Person gesendet wurde. This e-mail is confidential. If you received this communication by mistake, please don't forward it to anyone else, please erase all copies and attachments, and please let me know that it has gone to the wrong person. -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/v8-users/CAOAEZ4PQ7X62m1pmRM5naRWj-i644j9AzKgd%3DKNt5KU1h28E5Q%40mail.gmail.com.
