Mac Catalyst: TimeZoneInfo.FindSystemTimeZoneById fails

[rolfbjarne]

Description

Most (all?) calls to TimeZoneInfo.FindSystemTimeZoneById ("X") fails with:

The time zone ID 'X' was found on the local computer, but the file at '/usr/share/zoneinfo/X' was corrupt.

List of IDs that fail on our tests: https://gist.github.com/rolfbjarne/a0c8be26fa30774ed37892d7af4ecd2e

This only seems to happen with Mac Catalyst, none of the other Apple platforms.

It's a regression, that happened sometime between 6.0.100-preview.7.21330.1 and 6.0.100-rc.1.21369.3

Ref: xamarin/xamarin-macios#12064

The test that fails: https:/xamarin/xamarin-macios/blob/b4dcee199b30877b1f0e24974ea4e7404e1527db/tests/monotouch-test/Foundation/NSTimeZoneTest.cs#L53

CC @steveisok

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Tagging subscribers to this area: @tarekgh, @safern
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Issue Details

---

Description

Most (all?) calls to TimeZoneInfo.FindSystemTimeZoneById ("X") fails with:

The time zone ID 'X' was found on the local computer, but the file at '/usr/share/zoneinfo/X' was corrupt.

List of IDs that fail on our tests: https://gist.github.com/rolfbjarne/a0c8be26fa30774ed37892d7af4ecd2e

This only seems to happen with Mac Catalyst, none of the other Apple platforms.

It's a regression, that happened sometime between 6.0.100-preview.7.21330.1 and 6.0.100-rc.1.21369.3

Ref: xamarin/xamarin-macios#12064

The test that fails: https:/xamarin/xamarin-macios/blob/b4dcee199b30877b1f0e24974ea4e7404e1527db/tests/monotouch-test/Foundation/NSTimeZoneTest.cs#L53

CC @steveisok

Author:	rolfbjarne
Assignees:	-
Labels:	area-System.Globalization, untriaged
Milestone:	-

[ghost]

Tagging subscribers to this area: @dotnet/area-system-runtime
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Description

Most (all?) calls to TimeZoneInfo.FindSystemTimeZoneById ("X") fails with:

The time zone ID 'X' was found on the local computer, but the file at '/usr/share/zoneinfo/X' was corrupt.

List of IDs that fail on our tests: https://gist.github.com/rolfbjarne/a0c8be26fa30774ed37892d7af4ecd2e

This only seems to happen with Mac Catalyst, none of the other Apple platforms.

It's a regression, that happened sometime between 6.0.100-preview.7.21330.1 and 6.0.100-rc.1.21369.3

Ref: xamarin/xamarin-macios#12064

The test that fails: https:/xamarin/xamarin-macios/blob/b4dcee199b30877b1f0e24974ea4e7404e1527db/tests/monotouch-test/Foundation/NSTimeZoneTest.cs#L53

CC @steveisok

Author:	rolfbjarne
Assignees:	-
Labels:	area-System.Runtime
Milestone:	-

[mdh1418]

Using dotnet 6.0.100-rc.1.21370.1
This passes on dotnet/runtime

[Fact]
public static void All_28300()
{
    TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById ("Africa/Abidjan");
    Assert.NotNull(tzi);

    TimeSpan ts = tzi.GetUtcOffset(DateTime.Now);
    TimeSpan local = TimeZoneInfo.Local.GetUtcOffset(DateTime.Now);
    Assert.Equal(ts, new TimeSpan(0, 0, 0));
    Assert.Equal(local, new TimeSpan(-4, 0, 0));
}

This is using macOS Big Sur Version 11.4

For what it's worth, I've seen that error message several times when implementing the parsing for #54845
Whenever the tzdata files were not parsed correctly, that error message The time zone ID 'X' was found on the local computer, but the file at '/usr/share/zoneinfo/X' was corrupt. was hit.

[mdh1418]

@rolfbjarne Do you happen to have another repro for this error? The error message is from InvalidTimeZone_InvalidFileData and this is only called in TryGetTimeZoneFromLocalMachine at the time of the regression. Was there an inner exception logged as well?

[rolfbjarne]

I traced exception in a test app, and got this:

$ MONO_TRACE=E:all /Users/rolf/work/maccore/main/xamarin-macios/tests/dotnet/MySimpleApp/MacCatalyst/bin/Debug/net6.0-maccatalyst/maccatalyst-x64//MySimpleApp.app/Contents/MacOS/MySimpleApp
[...]

[0x116b6de00:] EXCEPTION handling: System.Globalization.CultureNotFoundException: Argument_CultureNotSupportedInInvariantMode Arg_ParamName_Name, name Argument_CultureInvalidIdentifier, en-us

"<unnamed thread>" tid=0x116b6de00 this=0x11295c130 , thread handle : 0x7fcfe97087b0, state : not waiting
  at System.Globalization.CultureInfo.GetCultureInfo (string) [0x0009f] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryPopulateTimeZoneDisplayNamesFromGlobalizationData (string,System.TimeSpan,string&,string&,string&) [0x00018] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo..ctor (byte[],string,bool) [0x00235] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.GetTimeZoneFromTzData (byte[],string) [0x00006] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneFromLocalMachine (string,System.TimeZoneInfo&,System.Exception&) [0x0005b] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneFromLocalMachine (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData) [0x00004] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneUsingId (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData,bool) [0x00094] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZone (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData,bool) [0x00008] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.FindSystemTimeZoneById (string) [0x00061] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at MySimpleApp.Program.Main (string[]) [0x00022] in /Users/rolf/work/maccore/main/xamarin-macios/tests/dotnet/MySimpleApp/AppDelegate.cs:17
  at (wrapper runtime-invoke) <Module>.runtime_invoke_int_object (object,intptr,intptr,intptr) [0x00036] in <d5607b203eb54e56aba48c5bba09e8d2>:0

[0x116b6de00:] EXCEPTION handling: System.Globalization.CultureNotFoundException: Argument_CultureNotSupportedInInvariantMode Arg_ParamName_Name, name Argument_CultureInvalidIdentifier, en-us

"<unnamed thread>" tid=0x116b6de00 this=0x11295c130 , thread handle : 0x7fcfe97087b0, state : not waiting
  at System.Globalization.CultureInfo.GetCultureInfo (string) [0x0009f] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryPopulateTimeZoneDisplayNamesFromGlobalizationData (string,System.TimeSpan,string&,string&,string&) [0x00018] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo..ctor (byte[],string,bool) [0x00235] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.GetTimeZoneFromTzData (byte[],string) [0x00018] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneFromLocalMachine (string,System.TimeZoneInfo&,System.Exception&) [0x0005b] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneFromLocalMachine (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData) [0x00004] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZoneUsingId (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData,bool) [0x00094] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.TryGetTimeZone (string,bool,System.TimeZoneInfo&,System.Exception&,System.TimeZoneInfo/CachedData,bool) [0x00008] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at System.TimeZoneInfo.FindSystemTimeZoneById (string) [0x00061] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at MySimpleApp.Program.Main (string[]) [0x00022] in /Users/rolf/work/maccore/main/xamarin-macios/tests/dotnet/MySimpleApp/AppDelegate.cs:17
  at (wrapper runtime-invoke) <Module>.runtime_invoke_int_object (object,intptr,intptr,intptr) [0x00036] in <d5607b203eb54e56aba48c5bba09e8d2>:0

[0x116b6de00:] EXCEPTION handling: System.InvalidTimeZoneException: InvalidTimeZone_InvalidFileData, Africa/Abidjan, /usr/share/zoneinfo/Africa/Abidjan

"<unnamed thread>" tid=0x116b6de00 this=0x11295c130 , thread handle : 0x7fcfe97087b0, state : not waiting
  at System.TimeZoneInfo.FindSystemTimeZoneById (string) [0x000a8] in <0f8c6ee5cdad4e2785c5d2d9bfe34bca>:0
  at MySimpleApp.Program.Main (string[]) [0x00022] in /Users/rolf/work/maccore/main/xamarin-macios/tests/dotnet/MySimpleApp/AppDelegate.cs:17
  at (wrapper runtime-invoke) <Module>.runtime_invoke_int_object (object,intptr,intptr,intptr) [0x00036] in <d5607b203eb54e56aba48c5bba09e8d2>:0

System.InvalidTimeZoneException: InvalidTimeZone_InvalidFileData, Africa/Abidjan, /usr/share/zoneinfo/Africa/Abidjan
   at System.TimeZoneInfo.FindSystemTimeZoneById(String id) in System.Private.CoreLib.dll:token 0x6001beb+0x7e
   at MySimpleApp.Program.Main(String[] args) in /Users/rolf/work/maccore/main/xamarin-macios/tests/dotnet/MySimpleApp/AppDelegate.cs:line 17

The Argument_CultureNotSupportedInInvariantMode clearly means this is another manifestation of xamarin/xamarin-macios#11392, where there's no globalization data for Mac Catalyst.