The CL you pointed to experimentally enables it for arm64 (so also iOS). I don't know what the cause is but yes, pointer compression should work in jitless mode.
On Thu, Aug 8, 2019 at 8:13 AM Darin Dimitrov <darin.dimit...@gmail.com> wrote: > Thanks for the quick tip. Shouldn't pointer compression be disabled by > default when target_os="ios"? Or is it just some issue that will be fixed > and we will be able to use pointer compression in jitless mode in the > future? > > On Thursday, August 8, 2019 at 7:49:16 AM UTC+3, Jakob Gruber wrote: >> >> Darin, thanks for reporting this. You can disable pointer compression >> with the 'v8_enable_pointer_compression = false' gn flag. >> >> On Wed, Aug 7, 2019 at 5:24 PM Santiago Aboy Solanes <sol...@google.com> >> wrote: >> >>> Looks to be the same as >>> https://bugs.chromium.org/p/v8/issues/detail?id=9588 >>> >>> On Wed, Aug 7, 2019 at 1:13 PM Jakob Gruber <jgr...@chromium.org> wrote: >>> >>>> +Santiago Aboy Solanes >>>> >>>> On Wed, Aug 7, 2019 at 2:09 PM Darin Dimitrov <darin....@gmail.com> >>>> wrote: >>>> >>>>> I have cross compiled V8 for iOS >>>>> <https://v8.dev/docs/cross-compile-ios> and running in "--jitless" >>>>> <https://v8.dev/blog/jitless> mode on an arm64 device (iPhone 6). >>>>> >>>>> Everything has been working smoothly until the following commit which >>>>> appears to have broken it: >>>>> https://chromium.googlesource.com/v8/v8.git/+/d1a4706af97dfd1576c7eb505745c6f864f4be06 >>>>> >>>>> I am getting the following error when creating the isolate: >>>>> >>>>> *#* >>>>> >>>>> *# Fatal error in , line 0* >>>>> >>>>> *# Fatal process out of memory: Failed to reserve memory for new V8 >>>>> Isolate* >>>>> >>>>> *#* >>>>> >>>>> *#* >>>>> >>>>> *#* >>>>> >>>>> *#FailureMessage Object: 0x16fa225c8* >>>>> >>>>> *==== C stack trace ===============================* >>>>> >>>>> >>>>> * 0 TestApp 0x0000000101b19508 >>>>> v8::base::debug::StackTrace::StackTrace() + 24* >>>>> >>>>> * 1 TestApp 0x0000000101b1bc68 >>>>> v8::platform::(anonymous namespace)::PrintStackTrace() + 24* >>>>> >>>>> * 2 TestApp 0x0000000101b159d4 >>>>> V8_Fatal(char const*, ...) + 204* >>>>> >>>>> * 3 TestApp 0x0000000101285124 >>>>> v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char >>>>> const*, bool) + 88* >>>>> >>>>> * 4 TestApp 0x00000001014ecf38 >>>>> v8::internal::IsolateAllocator::CommitPagesForIsolate(unsigned long) + 0* >>>>> >>>>> * 5 TestApp 0x00000001014ed09c >>>>> v8::internal::IsolateAllocator::IsolateAllocator(v8::internal::IsolateAllocationMode) >>>>> + 44* >>>>> >>>>> * 6 TestApp 0x00000001014f3b5c >>>>> v8::internal::Isolate::New(v8::internal::IsolateAllocationMode) + 36* >>>>> >>>>> * 7 TestApp 0x00000001012a0328 >>>>> v8::Isolate::New(v8::Isolate::CreateParams const&) + 24* >>>>> >>>>> * 8 TestApp 0x0000000101089d1c >>>>> tns::Runtime::Init(std::__1::basic_string<char, >>>>> std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 476* >>>>> >>>>> * 9 TestApp 0x0000000101089834 >>>>> tns::Runtime::InitAndRunMainScript(std::__1::basic_string<char, >>>>> std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 60* >>>>> >>>>> * 10 TestApp 0x0000000101178350 >>>>> +[NativeScript start:] + 364* >>>>> >>>>> * 11 TestApp 0x00000001003f3b10 main + >>>>> 80* >>>>> >>>>> * 12 libdyld.dylib 0x00000002021f68e0 >>>>> <redacted> + 4* >>>>> >>>>> >>>>> >>>>> From what I can see pointer compression has been enabled on ARM64 in >>>>> this commit. Could you spot how this might have affected --jitless mode >>>>> and >>>>> what would be the proper way to fix it? >>>>> >>>>> -- >>>>> -- >>>>> v8-users mailing list >>>>> v8-u...@googlegroups.com >>>>> 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 v8-u...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/v8-users/600728f0-f7b1-4d16-a47a-8873ef61af97%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/v8-users/600728f0-f7b1-4d16-a47a-8873ef61af97%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- > -- > v8-users mailing list > v8-users@googlegroups.com > 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 v8-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/v8-users/99754d9b-1422-43b0-bd40-90514177cda2%40googlegroups.com > <https://groups.google.com/d/msgid/v8-users/99754d9b-1422-43b0-bd40-90514177cda2%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. 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