Crash while consolidating freelist (2)

[woutergoossens]

SDK and version

SDK : Cocoa/Swift
Version: v10.25.1

Observations

• How frequent do the crash occur? 25 crashes
• Does it happen in production or during dev/test? production
• Can the crash be reproduced by you? No
• Can you provide instructions for how we can reproduce it? No

Crash log / stacktrace

Crashed: com.apple.main-thread
0  libsystem_kernel.dylib         0x28414 __pthread_kill + 8
1  libsystem_pthread.dylib        0x2b40 pthread_kill + 272
2  libsystem_c.dylib              0x76b74 abort + 104
3  Realm                          0x2cf708 please_report_this_issue_in_github_realm_realm_core + 10
4  Realm                          0x2cfa08 realm::util::terminate_internal(std::__1::basic_stringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) + 328
5  Realm                          0x2cfd6c realm::util::terminate_with_info(char const*, char const*, long, char const*, std::initializer_list<realm::util::Printable>&&) + 388
6  Realm                          0x1af7e4 void realm::util::terminate_with_info<unsigned long const&, unsigned long long const&, unsigned long&, unsigned long&, unsigned long long&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >(char const*, int, char const*, char const*, unsigned long const&, unsigned long long const&, unsigned long&, unsigned long&, unsigned long long&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&) + 146
7  Realm                          0x1af1f8 realm::GroupWriter::recreate_freelist(unsigned long) + 1688
8  Realm                          0x1ade10 realm::GroupWriter::write_group() + 656
9  Realm                          0x18d0e4 realm::DB::low_level_commit(unsigned long long, realm::Transaction&, bool) + 400
10 Realm                          0x18d508 realm::Transaction::commit_and_continue_as_read(bool) + 164
11 Realm                          0x3919ec realm::_impl::RealmCoordinator::commit_write(realm::Realm&, bool) + 108
12 Realm                          0x41ff70 realm::Realm::commit_transaction() + 128
13 Realm                          0x121c1c -[RLMRealm commitWriteTransactionWithoutNotifying:error:] + 288
14 RealmSwift                     0x6a908 $s10RealmSwift0A0V5write16withoutNotifying_xSaySo20RLMNotificationTokenCG_xyKXEtKlF + 400

Steps & Code to Reproduce

[jbreams]

This looks like it could be related to #5300 - @jedelbo, what do you think?

[finnschiermer]

Yes, likely same root cause as #5300

[finnschiermer]

@jedelbo assigning this one to you, since you're already assigned to #5300.