fatal v8 error:Entering the V8 API without proper locking in place

[lolobug]

stack :
signal 6 (SIGABRT), code -6 (?), fault addr 00004d37
#00  pc 0x39acc  /system/lib/libc.so (tgkill+12)
#01  pc 0x13dad  /system/lib/libc.so (pthread_kill+52)
#02  pc 0x14a27  /system/lib/libc.so (raise+10)
#03  pc 0x11145  /system/lib/libc.so (???)
#04  pc 0xf6ac  /system/lib/libc.so (abort+4)
#05  pc 0x37291  /data/app/com.xxxx-1/lib/arm/libj2v8.so (???)
#06  pc 0x3943ed  /data/app/com.xxxx-1/lib/arm/libv8.so (v8::HandleScope::Initialize(v8::Isolate*)+100)
#07  pc 0x394381  /data/app/com.xxxx-1/lib/arm/libv8.so (v8::HandleScope::HandleScope(v8::Isolate*)+4)
#08  pc 0xbccdc  /data/app/com.xxxx-1/lib/arm/libnode.so (node::Environment::CheckImmediate(uv_check_s*)+40)

• Version:10.3.0
• Platform:android:
  Subsystem:

V8 fatat handler message : Entering the V8 API without proper locking in place (HandleScope::HandleScope)
This occurs by chance.

I noticed ：

uv_check_start(immediate_check_handle(), CheckImmediate);

Actually I place all the operations of node in a single thread and use a V8::Locker.
Is it possible that the CheckImmediate will switch to another thread?

there's V8 HandleScope::Initialize code:

Utils::ApiCheck(
  !v8::Locker::IsActive() ||
  internal_isolate->thread_manager()->IsLockedByCurrentThread() ||
   internal_isolate->serializer_enabled(),
   "HandleScope::HandleScope",
   "Entering the V8 API without proper locking in place");

[Trott]

I know Android is currently an unsupported platform, but any chance someone wants to comment on this issue? @nodejs/v8

[hashseed]

Don't use lockers if you only use a single thread.

I can't provide any more advice without more context unfortunately.

[refack]

@JaneaSystems have a working Android version (@joaocgreis, @bzoz)

[lolobug]

Don't use lockers if you only use a single thread.

I can't provide any more advice without more context unfortunately.

Thanks @hashseed . It may be solved without using a locker.
But I want to know whether the "CheckImmediate" callback switch to another thread from the main thread of the uv loop.
uv_check_start(immediate_check_handle(), CheckImmediate);

[jaimecbernardo]

@JaneaSystems have a working Android version (@joaocgreis, @bzoz)

Regarding https://github.com/janeasystems/nodejs-mobile on Android:

We don't have any related issue, nor have anything similar happened on out tests, so I'm not sure what this can be. Our scenario is single threaded use for mobile, so it may not even occur inside that scenario, since we're not using the mentioned V8::Locker.

[addaleax]

@lolobug This sounds like an issue with embedding Node and using libnode.so, but that means that, most likely, we are unable to help unless you share more information about your embedding usage (for example, your code?).

[Trott]

I'm going to close this, but feel free to re-open if code is shared from original poster or if it otherwise becomes possible to troubleshoot further.