Crash in do_encryption_read_barrier on Array::init_from_ref #6633
Description
How frequently does the bug occur?
Sometimes
Description
I'm attempting to do a write transaction for an array of data that I get from a remote server. While this works most of the time, it's been known to fail sporadically with an unexplained error ( see the crash logs for details). Here's the code of what I'm doing:
var contacts = [Contact]()
do {
let realm = try Current.realm()
realm.beginWrite()
for contactData in contactsData {
let contact = insertContact(contactData, realm: realm)
contacts.append(contact)
}
try realm.commitWrite()
} catch {
...
}
func insertContact(
_ contactData: [String: AnyObject],
realm: Realm? = nil
) -> Contact {
do {
let realm = try realm ?? Current.realm()
var contact: Contact
let storeContact = {
contact = realm.create(SWTContact.self, value: contactData, update: .all)
}
if realm.isInWriteTransaction {
storeContact()
} else {
realm.beginWrite()
storeContact()
try realm.commitWrite()
}
return contact
} catch {
...
}
...
}
Stacktrace & log output
Crashed: co.Dialpad.fetchQueue
0 libsystem_kernel.dylib 0x7200 __pthread_kill + 8
1 libsystem_pthread.dylib 0x71ac pthread_kill + 268
2 libsystem_c.dylib 0x20c8c abort + 180
3 Dialpad 0x171dbc8 realm::util::terminate(char const*, char const*, long, std::initializer_list<realm::util::Printable>&&) + 147 (terminate.cpp:147)
4 Dialpad 0x171df08 realm::util::terminate_internal(std::__1::basic_stringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) + 142 (terminate.cpp:142)
5 Dialpad 0x171dc84 realm::util::terminate(char const*, char const*, long, std::initializer_list<realm::util::Printable>&&) + 152 (terminate.cpp:152)
6 Dialpad 0x12a5408 realm::util::do_encryption_read_barrier(void const*, unsigned long, unsigned long (*)(char const*), realm::util::EncryptedFileMapping*, bool) + 144 (file_mapper.hpp:144)
7 Dialpad 0x149ed14 realm::Array::init_from_ref(unsigned long) + 576 (alloc.hpp:576)
8 Dialpad 0x149f290 realm::Array::do_write_deep(realm::_impl::ArrayWriterBase&, bool) const + 843 (array.hpp:843)
9 Dialpad 0x149f2a8 realm::Array::do_write_deep(realm::_impl::ArrayWriterBase&, bool) const + 846 (array.hpp:846)
10 Dialpad 0x149f2a8 realm::Array::do_write_deep(realm::_impl::ArrayWriterBase&, bool) const + 846 (array.hpp:846)
11 Dialpad 0x149f2a8 realm::Array::do_write_deep(realm::_impl::ArrayWriterBase&, bool) const + 846 (array.hpp:846)
12 Dialpad 0x149f2a8 realm::Array::do_write_deep(realm::_impl::ArrayWriterBase&, bool) const + 846 (array.hpp:846)
13 Dialpad 0x14e5c98 realm::GroupWriter::write_group() + 832 (array.hpp:832)
14 Dialpad 0x14d1100 realm::DB::low_level_commit(unsigned long long, realm::Transaction&, bool) + 2258 (db.cpp:2258)
15 Dialpad 0x14d0f48 realm::DB::do_commit(realm::Transaction&, bool) + 448 (replication.hpp:448)
16 Dialpad 0x16f33e8 realm::Transaction::commit_and_continue_as_read(bool) + 209 (transaction.cpp:209)
17 Dialpad 0x1561438 realm::_impl::RealmCoordinator::commit_write(realm::Realm&, bool) + 727 (realm_coordinator.cpp:727)
18 Dialpad 0x15c3b90 realm::Realm::commit_transaction() + 997 (shared_realm.cpp:997)
19 Dialpad 0x13b9f44 -[RLMRealm commitWriteTransactionWithoutNotifying:error:] + 750 (RLMRealm.mm:750)
20 Dialpad 0x145b988 Realm.commitWrite(withoutNotifying:) + 322 (Realm.swift:322)
21 Dialpad 0x1f7c60 specialized static Contact.insert(_:endpointSource:) + 4376198240 (<compiler-generated>:4376198240)
22 Dialpad 0x258514 closure realm/realm-swift#1 in closure realm/realm-swift#1 in ContactDataManager.fetch(_:failure:) + 4376593684 (<compiler-generated>:4376593684)
23 Dialpad 0x50d64 thunk for @escaping @callee_guaranteed () -> () + 4374465892 (<compiler-generated>:4374465892)
24 libdispatch.dylib 0x24b4 _dispatch_call_block_and_release + 32
25 libdispatch.dylib 0x3fdc _dispatch_client_callout + 20
26 libdispatch.dylib 0xb694 _dispatch_lane_serial_drain + 672
27 libdispatch.dylib 0xc1e0 _dispatch_lane_invoke + 384
28 libdispatch.dylib 0x16e10 _dispatch_workloop_worker_thread + 652
29 libsystem_pthread.dylib 0xdf8 _pthread_wqthread + 288
30 libsystem_pthread.dylib 0xb98 start_wqthread + 8Can you reproduce the bug?
No
Reproduction Steps
No response
Version
10.28.2, 10.32.2
What Atlas Services are you using?
Local Database only
Are you using encryption?
No
Platform OS and version(s)
iOS 16, iOS 15, iOS 14, iPadOS 16
Build environment
Xcode version: ...
Dependency manager and version: ...