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Crash: Invalid mnemonic #3134

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cmelchior opened this issue Oct 30, 2018 · 2 comments
Closed

Crash: Invalid mnemonic #3134

cmelchior opened this issue Oct 30, 2018 · 2 comments
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@jedelbo
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O-Customer Pipeline-On-Hold Reproduction-Required T-Bug-Crash

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@cmelchior
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cmelchior commented Oct 30, 2018 •
edited by sync-by-unito bot
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We are seeing a number of crash reports on the Java side that indicates the Realm file is somehow being corrupted. It is still unclear why this is happening, but the errors all have the same form but with different values:

Fatal Exception: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 623E3EBB12044142, mnemonic: A7 8C EE A, fmt[0]: 160, fmt[1]: 49, flags: D7. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 623E3EBB12044142, mnemonic: A7 8C EE A, fmt[0]: 160, fmt[1]: 49, flags: D7) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101

References to Java issues:

Current observations:

  • We can still not rule out completely this is happening due to the files being manipulated by code outside Realm's control, e.g. end app users users deleting or moving files or backup/restore procedures overwritting files.
  • There are few (if any) reports of this happening on other platforms which either indicates a general problem in the Java binding or the Android kernel.
  • It is happening across a wide variety of Android devices and versions indicating the problem is on our side.
  • This crash is seen together with Crash: Top ref outside file #3133. One observation is that this crash only seems to happen for the userdb.realm while Crash: Top ref outside file #3133 only happens for the librarydb.realm. This could indicate these files are somehow being handled differently as they seem to become corrupted in different ways. I'm trying to verify this.

Known devices that has experienced this error:

  • Galaxy Grand Prime
  • Galaxy J1
  • Galaxy Note3 Neo
  • Mate 7
  • Moto G (5S) Plus
  • Redmi Note 4
  • SM-J400F
  • SM-G611MT

Crash data:

A list of exceptions and devices it is happening on can be seen here:

Searching 66 files for "(# OS Version(.|\n)*?)(^Fatal Exception:.*Invalid mnemonic.*)" (regex)

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BABA50602E90001659D11678B8E9F44_DNE_0_v2.txt:
   11  # Date: 2018-09-26T15:25:00Z
   12: # OS Version: 8.1.0
   13: # Device: Moto G (5S) Plus
   14: # RAM Free: 54.5%
   15: # Disk Free: 75.6%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6D9515BB3A044142, mnemonic: 50 F0 D2 A9, fmt[0]: 58, fmt[1]: 174, flags: 30. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6D9515BB3A044142, mnemonic: 50 F0 D2 A9, fmt[0]: 58, fmt[1]: 174, flags: 30) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BAC04C9037F00017A589B5172E1E4A0_DNE_0_v2.txt:
   11  # Date: 2018-09-26T21:50:08Z
   12: # OS Version: 5.1.1
   13: # Device: Galaxy Note3 Neo
   14: # RAM Free: 17.6%
   15: # Disk Free: 3.5%
   16: 
   17: 
   18: Fatal Exception: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 623E3EBB12044142, mnemonic: A7 8C EE A, fmt[0]: 160, fmt[1]: 49, flags: D7. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 623E3EBB12044142, mnemonic: A7 8C EE A, fmt[0]: 160, fmt[1]: 49, flags: D7) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BB30FB001BF00010F7711678B8E9F44_DNE_0_v2.txt:
   11  # Date: 2018-10-02T06:26:00Z
   12: # OS Version: 8.1.0
   13: # Device: Moto G (5S) Plus
   14: # RAM Free: 49.6%
   15: # Disk Free: 71.6%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6D9515BB3A044142, mnemonic: 50 F0 D2 A9, fmt[0]: 58, fmt[1]: 174, flags: 30. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6D9515BB3A044142, mnemonic: 50 F0 D2 A9, fmt[0]: 58, fmt[1]: 174, flags: 30) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BBFB19D03B3000172D76B2E4A0B9596_DNE_0_v2.txt:
   11  # Date: 2018-10-11T20:25:00Z
   12: # OS Version: 5.1.1
   13: # Device: Mate 7
   14: # RAM Free: 41.4%
   15: # Disk Free: 18.8%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 9AF3F63B74044142, mnemonic: 26 5A 98 D, fmt[0]: 195, fmt[1]: 51, flags: 9F. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 9AF3F63B74044142, mnemonic: 26 5A 98 D, fmt[0]: 195, fmt[1]: 51, flags: 9F) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BC5AD7902FA00015EA2A8B0ED677417_DNE_0_v2.txt:
   11  # Date: 2018-10-16T09:20:00Z
   12: # OS Version: 8.0.0
   13: # Device: SM-J400F
   14: # RAM Free: 23.7%
   15: # Disk Free: 67.4%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BC5B8DB038800013B7DA8B0ED677417_DNE_0_v2.txt:
   11  # Date: 2018-10-16T10:09:00Z
   12: # OS Version: 8.0.0
   13: # Device: SM-J400F
   14: # RAM Free: 35.9%
   15: # Disk Free: 68.8%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BC617EC039000017784A8B0ED677417_DNE_0_v2.txt:
   11  # Date: 2018-10-16T16:55:00Z
   12: # OS Version: 8.0.0
   13: # Device: SM-J400F
   14: # RAM Free: 30.7%
   15: # Disk Free: 68.4%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 6841387164044142, mnemonic: 88 54 B0 9E, fmt[0]: 15, fmt[1]: 65, flags: 1B) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BC7AFEB03E100014B1CBE206EDC8208_DNE_0_v2.txt:
   11  # Date: 2018-10-17T21:55:50Z
   12: # OS Version: 8.0.0
   13: # Device: SM-G611MT
   14: # RAM Free: 26.2%
   15: # Disk Free: 62.3%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: F107DDE3F1044142, mnemonic: 8A 76 9C BC, fmt[0]: 182, fmt[1]: 246, flags: D1. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: F107DDE3F1044142, mnemonic: 8A 76 9C BC, fmt[0]: 182, fmt[1]: 246, flags: D1) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BCAA37201E8000118B353A4AF9E1966_DNE_0_v2.txt:
   11  # Date: 2018-10-20T03:39:00Z
   12: # OS Version: 5.0.2
   13: # Device: Galaxy Grand Prime
   14: # RAM Free: 36.7%
   15: # Disk Free: 23.2%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: DDFE0CDD21044142, mnemonic: 6D 6A 23 E3, fmt[0]: 79, fmt[1]: 228, flags: BB. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: DDFE0CDD21044142, mnemonic: 6D 6A 23 E3, fmt[0]: 79, fmt[1]: 228, flags: BB) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

/Users/cm/Downloads/User Realm Crashes/com.test_issue_2727_crash_5BD5C91F014E0001452D672A97D5E137_DNE_0_v2.txt:
   11  # Date: 2018-10-28T14:35:00Z
   12: # OS Version: 6.0.1
   13: # Device: Galaxy J1
   14: # RAM Free: 41.5%
   15: # Disk Free: 6.6%
   16: 
   17: 
   18: Fatal Exception: java.lang.RuntimeException: Unable to create application com.test.MainApplication: io.realm.exceptions.RealmFileException: Unable to open a realm at path '/data/data/com.test/files/userdb.realm': Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 8DB56480F044142, mnemonic: C7 C7 2 58, fmt[0]: 160, fmt[1]: 169, flags: AB. (Invalid mnemonic. top_ref[0]: 104600030316, top_ref[1]: 8DB56480F044142, mnemonic: C7 C7 2 58, fmt[0]: 160, fmt[1]: 169, flags: AB) (/data/data/com.test/files/userdb.realm) in /Users/cm/Realm/realm-java/realm/realm-library/src/main/cpp/io_realm_internal_OsSharedRealm.cpp line 101 Kind: ACCESS_ERROR.

10 matches across 10 files
This was referenced Oct 30, 2018
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@Fab1n Fab1n mentioned this issue Dec 21, 2018
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@jasper-chan jasper-chan mentioned this issue Jan 11, 2019
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➤ Brian Munkholm commented:

Seen in Java 6.0.2.

@jedelbo
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jedelbo commented May 28, 2021

No activity for a year now -> closing

@jedelbo jedelbo closed this as completed May 28, 2021
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