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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
Goals
Prevent my application from crashing after continuous use
Actual Results
After updating an object in Realm every 2 seconds my application eventually crashes with the stacktrace below. My application is an audio player and playback progress is stored in Realm. While audio is playing the progress is updated every 2 seconds.
/Users/realm/workspace/realm_realm-core_release_6.0.9/src/realm/array_basic_tpl.hpp:123: [realm-core-6.0.9] Assertion failed: ndx < m_size [5, 0] 0 Realm 0x0000000109cf8474 _ZN5realm4utilL18terminate_internalERNSt3__118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28 1 Realm 0x0000000109cf8718 _ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE + 328 2 Realm 0x000000010976db80 _ZN5realm4util9terminateIJmmEEEvPKcS3_lDpT_ + 144 3 Realm 0x0000000109c80e98 _ZN5realm3Obj3setIfEERS0_NS_6ColKeyET_b + 1052 4 Realm 0x000000010986a584 _ZN12_GLOBAL__N_18setValueIfEEvP13RLMObjectBaseN5realm6ColKeyET_ + 84 5 Realm 0x000000010986a524 _ZZZN12_GLOBAL__N_110makeSetterIffEEP11objc_objectP11RLMPropertyEUb0_ENKUlvE_clEv + 120 6 Realm 0x000000010986a4a0 ___ZN12_GLOBAL__N_110makeSetterIffEEP11objc_objectP11RLMProperty_block_invoke_2 + 240 7 Entale 0x0000000104d02314 $s6Entale15PlaybackHistoryC18updateProgressData33_64BC4DC07B202437F4FE0DBD10E3DC61LL9contentId8position8durationyAA07ContentP0O_S2dSgtFy10RealmSwift0T0VXEfU0_ + 204 8 Entale 0x0000000104cea6cc $s10RealmSwift0A0V6EntaleE5writeyyyACKXEKFyyXEfU_ + 96 9 Entale 0x0000000104ce9ddc $s10RealmSwift0A0V6EntaleE9safeWrite33_9A8FC24798E030663DEFD3E32840878DLLyyyyKXEKF + 148 10 Entale 0x0000000104cea570 $s10RealmSwift0A0V6EntaleE5writeyyyACKXEKF + 140 11 Entale 0x0000000104f568c8 $s6Entale19DefaultRealmServiceC5writeyyy0C5Swift0C0VKXEKF + 128 12 Entale 0x0000000104f57ec8 $s6Entale19DefaultRealmServiceCAA0cD0A2aDP5writeyyy0C5Swift0C0VKXEKFTW + 24 13 Entale 0x0000000104d01e94 $s6Entale15PlaybackHistoryC18updateProgressData33_64BC4DC07B202437F4FE0DBD10E3DC61LL9contentId8position8durationyAA07ContentP0O_S2dSgtF + 1136 14 Entale 0x0000000104d019f8 $s6Entale15PlaybackHistoryC15progressUpdated33_64BC4DC07B202437F4FE0DBD10E3DC61LLyyAA16DataNotificationVyAA0B6UpdateVGFyycfU_ + 432 15 Entale 0x0000000104cfdce0 $sIeg_IeyB_TR + 56 16 libdispatch.dylib 0x000000010b2097fc _dispatch_call_block_and_release + 24 17 libdispatch.dylib 0x000000010b20abd8 _dispatch_client_callout + 16 18 libdispatch.dylib 0x000000010b218c34 _dispatch_main_queue_callback_4CF + 1316 19 CoreFoundation 0x000000019994c5e4 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 693732 20 CoreFoundation 0x00000001999475d8 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 673240 21 CoreFoundation 0x0000000199946adc CFRunLoopRunSpecific + 464 22 GraphicsServices 0x00000001a38e7328 GSEventRunModal + 104 23 UIKitCore 0x000000019da5463c UIApplicationMain + 1936 24 Entale 0x0000000104cd72fc main + 128 25 libdyld.dylib 0x00000001997d0360 7B531A15-3E73-3185-90E2-B88D9476DA5E + 4960!!! IMPORTANT: Please send this log and info about Realm SDK version and other relevant reproduction info to help@realm.io.2020-07-16 17:57:55.755841+0100 Entale[809:304792] /Users/realm/workspace/realm_realm-core_release_6.0.9/src/realm/array_basic_tpl.hpp:123: [realm-core-6.0.9] Assertion failed: ndx < m_size [5, 0] 0 Realm 0x0000000109cf8474 _ZN5realm4utilL18terminate_internalERNSt3__118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28 1 Realm 0x0000000109cf8718 _ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE + 328 2 Realm 0x000000010976db80 _ZN5realm4util9terminateIJmmEEEvPKcS3_lDpT_ + 144 3 Realm 0x0000000109c80e98 _ZN5realm3Obj3setIfEERS0_NS_6ColKeyET_b + 1052 4 Realm 0x000000010986a584 _ZN12_GLOBAL__N_18setValueIfEEvP13RLMObjectBaseN5realm6ColKeyET_ + 84 5 Realm 0x000000010986a524 _ZZZN12_GLOBAL__N_110makeSetterIffEEP11objc_objectP11RLMPropertyEUb0_ENKUlvE_clEv + 120 6 Realm 0x000000010986a4a0 ___ZN12_GLOBAL__N_110makeSetterIffEEP11objc_objectP11RLMProperty_block_invoke_2 + 240 7 Entale 0x0000000104d02314 $s6Entale15PlaybackHistoryC18updateProgressData33_64BC4DC07B202437F4FE0DBD10E3DC61LL9contentId8position8durationyAA07ContentP0O_S2dSgtFy10RealmSwift0T0VXEfU0_ + 204 8 Entale 0x0000000104cea6cc $s10RealmSwift0A0V6EntaleE5writeyyyACKXEKFyyXEfU_ + 96 9 Entale 0x0000000104ce9ddc $s10RealmSwift0A0V6EntaleE9safeWrite33_9A8FC24798E030663DEFD3E32840878DLLyyyyKXEKF + 148 10 Entale 0x0000000104cea570 $s10RealmSwift0A0V6EntaleE5writeyyyACKXEKF + 140 11 Entale 0x0000000104f568c8 $s6Entale19DefaultRealmServiceC5writeyyy0C5Swift0C0VKXEKF + 128 12 Entale 0x0000000104f57ec8 $s6Entale19DefaultRealmServiceCAA0cD0A2aDP5writeyyy0C5Swift0C0VKXEKFTW + 24 13 Entale 0x0000000104d01e94 $s6Entale15PlaybackHistoryC18updateProgressData33_64BC4DC07B202437F4FE0DBD10E3DC61LL9contentId8position8durationyAA07ContentP0O_S2dSgtF + 1136 14 Entale 0x0000000104d019f8 $s6Entale15PlaybackHistoryC15progressUpdated33_64BC4DC07B202437F4FE0DBD10E3DC61LLyyAA16DataNotificationVyAA0B6UpdateVGFyycfU_ + 432 15 Entale 0x0000000104cfdce0 $sIeg_IeyB_TR + 56 16 libdispatch.dylib 0x000000010b2097fc _dispatch_call_block_and_release + 24 17 libdispatch.dylib 0x000000010b20abd8 _dispatch_client_callout + 16 18 libdispatch.dylib 0x000000010b218c34 _dispatch_main_queue_callback_4CF + 1316 19 CoreFoundation 0x000000019994c5e4 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 693732 20 CoreFoundation 0x00000001999475d8 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 673240 21 CoreFoundation 0x0000000199946adc CFRunLoopRunSpecific + 464 22 GraphicsServices 0x00000001a38e7328 GSEventRunModal + 104 23 UIKitCore 0x000000019da5463c UIApplicationMain + 1936 24 Entale 0x0000000104cd72fc main + 128 25 libdyld.dylib 0x00000001997d0360 7B531A15-3E73-3185-90E2-B88D9476DA5E + 4960!!! IMPORTANT: Please send this log and info about Realm SDK version and other relevant reproduction info to help@realm.io. (lldb)
Steps to Reproduce
Update an existing Ream object periodically (every 2 seconds) for 30 minutes or more (this is anecdotal based on usage)
Code Sample
The below code crashes
try database.write { _ in data.progress = position.formatted // this crashes data.lastPlayed = now.isoFormatted if let duration = duration { data.duration = duration.formatted } }
database.write is declared as:
func write(_ block: (Realm) throws -> Void) throws { let realm = try getRealm() try realm.write(block) }
where realm.write is an Extension on Realm:
extension Realm {
func write(_ block: (Realm) throws -> Void) throws {
var writeError: Swift.Error?
try safeWrite {
do {
try block(self)
} catch let error {
writeError = error
}
}
if let error = writeError {
throw error
}
}
func safeWrite(_ block: (() throws -> Void)) throws {
if isInWriteTransaction {
try block()
} else {
try write(block)
}
}
}
Version of Realm and Tooling
Realm framework version: RealmSwift version 5.3.0
Xcode version: 11.5 (11E608c)
iOS/OSX version: Crash experienced on multiple iOS devices including iOS 13.5.1
Dependency manager + version: CocoaPods 1.9.3