We have added availability annotiations to _darwincheck_fd_set_overflow to avoid the use of weak. It is now required to build with current deployment target if you want to use -Wl,-no_weak_imports, building with older deployment target fundamentally requires weak imports, it is not supported to combine that with that linker option. Please try building for macOS 11 target to verify that -Wl,-no_weak_imports works.

Engineering has provided the following information regarding this issue:

Xcode 12.3 does not contain the iOS 14.4 SDK. However, it does contain a developer disk image that will allow you to develop on an iOS 14.4 device, provided that your app has a deployment target of iOS 14.3.

4 years is plenty enough time, Apple just doesn't care about developers.

After reviewing your feedback, we have some additional information for you, or some additional information, or action is necessary for this issue:

This is a source-breaking change that is no longer allowed in Swift 4 and later versions. Please switch to URLSession, or call this method in Objective-C.

(FB8957219)

In this case, I would suggest fixing this by adding __attribute__((swift_error(nonnull_error))) to the end of the method definition in the header.

Thank you for writing and double-filing this!

Great news! https://bugreport.apple.com now has ZERO BUGS!

So... https://bugreport.apple.com is down.  Confirmed at downforeveryoneorjustme.com/bugreport.apple.com?proto=https - it says

Bugreport.apple.com Status Is bugreport.apple.com down right now? It's not just you! bugreport.apple.com is down. 

But nothing at https://developer.apple.com/system-status/

STP (Safari Technology Preview -- latest version*) still directs users there via Help...Report an issue...

1. *Release 117
2. 1. Posted December 10, 2020

Fixed in iOS 14.3

After updating to Big Sur, extra display is not working well only in connecting USB-C. It can select onIy 30Hz. Also, sometimes it dose not recognize the signal from monitor. I'm using LG32ud99. Hope it will be fine.

The problem not only affects Podcast media items, but also audio books, videos, etc. Basically, the only fully working elements are : - .audio

What does not work at all: - .audioBook - .audioITunesU - .podcast

What works partially: - .any (even though only the music media items are shown to the user) - .anyAudio (even though only the music media items are shown to the user) - .anyVideo (even though only the music media items are shown to the user) - .homeVideo (even though only the music media items are shown to the user) - .video (even though only the music media items are shown to the user) - .musicVideo (even though only the music media items are shown to the user) - .tvShow (even though only the music media items are shown to the user) - .videoITunesU (even though only the music media items are shown to the user) - .videoPodcast (even though only the music media items are shown to the user)

I doubt that StoreKit requests directly to AppStore instead of processing the request with .storekit configuration. If this is the case, switch off internet connection will produce a different error result.

It was fixed with iOS 14.2

I have also submitted an issue using feedback assistant, will add the issue to openradar right now

After some more investigations, it seems related to a preference created by macOS (“__NSDisableSharingTextTabInstance”):

int main(int argc, const char *argv[]) {

[[NSUserDefaults standardUserDefaults] setBool: YES forKey: @"__NSDisableSharingTextTabInstance"]; // -> What is it? Created by old version of macOS ???

// Uncomment this line to make it works !
//[[NSUserDefaults standardUserDefaults] removeObjectForKey: @"__NSDisableSharingTextTabInstance"];

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];


// It crashes here, if __NSDisableSharingTextTabInstance was YES
[paragraphStyle setParagraphStyle:[NSParagraphStyle defaultParagraphStyle]];

return NSApplicationMain(argc, argv);

}

Tested with iOS 14.3 RC and still seeing the issue

Just filed a radar for the same problem here: http://openradar.appspot.com/FB8936188

Same issue here.

Pro Display XDR - Single DP 1.4 Cable plugged on AMD 5600xt - Worked fine at 6k pre Bigger with DSC. Broken after upgrading to BigSur reverts to 4k or 5k with no DSC.

Start: AGDC[6] 0x100000822

IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GPP8@3,1/IOPP/pci-bridge@0/IOPP/pci-bridge@0/IOPP/GFX0@0/AMDRadeonX6000_AmdAgdcServices/AppleGraphicsDevicePolicy/AGDPClientControl Vendor: AMD [00001002]: DiscreteGPU 2 30000 FBs: 4, Ports: 0x1e mst:0xe ddc:0x1e aux:0xe, Streams: dp:6 dvi:4 mst:6 max:6 Framebuffers: * 0: Address: 1.0 Stream: Enabled Group: -1 Online Assoc'd MayGroup 1: Address: 0.0 Stream: Not Associated Group: -1 MayGroup 2: Address: 0.0 Stream: Not Associated Group: -1 MayGroup 3: Address: 0.0 Stream: Not Associated Group: -1 MayGroup Port Capabilities: 1: AUX, DDC, MST 2: AUX, DDC, MST 3: AUX, DDC, MST 4: DDC Connections: 1: [DP 1.4 4 x HBR2] Status: [4 x HBR2 7777] caps [features 0x101141b, p_encoding 0xd] Sink OUI:000-016-250 D1baba [068-049-098-097-098-097] HW Version: 17 FW Version: 6.56 2: 3: 4:

Register Dump Port 1 - Start

000000: 0x14 0x14 0xc4 0x83 0x01 0x00 0x01 0xc0 0x02 0x01 0x04 0x01 0x20 0x00 0x84 0x00 Reg: 000000: 14 : DPCD_REV: 1.4 Reg: 000001: 14 : MAX_LINK_RATE: HBR2 Reg: 000002: c4 : MAX_LANE_COUNT: 4, TPS3_SUPPORTED: 1, ENHANCED_FRAME_CAP: 1 Reg: 000003: 83 : MAX_DOWNSPREAD: 0.5% down, NO_AUX_HANDSHAKE_LINK_TRAINING: 0 Reg: 000004: 01 : NORP: 1 Reg: 000005: 00 : DOWNSTREAMPORT_PRESENT: DWN_STRM_PORT_PRESENT: 0, DWN_STRM_PORT_TYPE: [0] DisplayPort, FORMAT_CONVERSION: 0, DETAILED_CAP_INFO_AVAILABLE: 0 Reg: 000006: 01 : MAIN_LINK_CHANNEL_CODING: ANSI 8B/10B Reg: 000007: c0 : DOWN_STREAM_PORT_COUNT: DWN_STRM_PORT_COUNT: 0, MSA_TIMING_PAR_IGNORED: 1, OUI: 1 Reg: 000008: 02 : RECEIVE_PORT0_CAP_0: LOCAL_EDID_PRESENT: 1, ASSOCIATED_TO_PRECEDING_PORT: 0 Reg: 000009: 01 : RECEIVE_PORT0_CAP_1: BUFFER_SIZE: 64 Reg: 00000a: 04 : RECEIVE_PORT1_CAP_0: Reg: 00000b: 01 : RECEIVE_PORT1_CAP_1: Reg: 00000c: 20 : I2C Speed: 1Mbps Reg: 00000d: 00 : eDP_CONFIGURATION_CAP: ALTERNATE_SCRAMBLER_RESET_CAPABLE: 0, FRAMING_CHANGE_CAPABLE: 0 Reg: 00000e: 84 : TRAINING_AUX_RD_INTERVAL: 0 RESERVED, EXTENDED_RECEIVER_CAPABILITY_FIELD_PRESENT: YES Reg: 00000f: 00 : ADAPTER_CAP: FORCE_LOAD_SENSE_CAP: 0, ALTERNATE_I2C_PATTERN_CAP: 0 000020: 0x00 0x00 0x01 Reg: 000020: 00 : FAUX_CAP: FAUX_CAP: 0 Reg: 000021: 00 : MSTM_CAP: MST_CAP: 0 Reg: 000022: 01 : NUMBER_OF_AUDIO_ENDPOINTS: 1 000060: 0x01 0x21 0x00 0x0f 0x0b 0x04 0x00 0x00 0x00 0x01 0x0e 0x02 0x0c 0x00 0x00 0x00 Reg: 000060: 01 : DSC Support: 1 Reg: 000061: 21 : DSC Algorithm revision: 33 Reg: 000062: 00 : DSC RC Buffer Block size: 0 Reg: 000063: 0f : DSC RC Buffer size: 15 Reg: 000064: 0b : DSC slice Capabilities 1 : 11 Reg: 000065: 04 : DSC Line buffer bit depth: 4 Reg: 000066: 00 : DSC Block prediction support: 0 Reg: 000067: 00 : DSC Maximum bit per pixel: 0 Reg: 000068: 00 : DSC Maximum bit per pixel: 0 Reg: 000069: 01 : DSC Decoder color format capabilities: 1 Reg: 00006a: 0e : DSC decoder color depth capabilities: 14 Reg: 00006b: 02 : DSC Peak Throughput: 2 Reg: 00006c: 0c : DSC Maximum Slice width: 12 Reg: 00006d: 00 : DSC Slice capabilities 2: 0 Reg: 00006e: 00 : Reserved: 0 Reg: 00006f: 00 : DSC Bits per pixel increment: 0 000090: 0x0f Reg: 000090: 0f : FEC Capability: 0xf

000080: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Reg: 000080: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000081: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000082: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000083: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000084: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000085: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000086: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000087: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000088: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 000089: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008a: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008b: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008c: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008d: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008e: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 Reg: 00008f: 00 : DETAILED_CAP_INFO_AVAILABLE: DWN_STRM_PORTX_CAP: [0] DisplayPort, DWN_STRM_PORTX_HPD: 0, NON_EDID_DWN_STRM_PORTX_ATTRIBUTE: 0 000100: 0x14 0x84 Reg: 000100: 14 : LINK_BW_SET: HBR2 Reg: 000101: 84 : LANE_COUNT_SET: LANE_COUNT_SET 4, ENHANCED_FRAME_EN: 1 000107: 0x10 Reg: 000107: 10 : DOWNSPREAD_CTRL: SPREAD_AMP: 1, MSA_TIMING_PAR_IGNORE_EN: 0 00010a: 0x00 Reg: 00010a: 00 : eDP_CONFIGURATION_CAP_SET: ALTERNATE_SCRAMBLER_RESET_CAPABLE: 0, FRAMING_CHANGE_CAPABLE: 0 000111: 0x00 Reg: 000111: 00 : MSTM_CTRL: UPSTREAM_IS_SRC:0 UP_REQ_EN:0 MST_EN:0 000120: 0x00 Reg: 000120: 00 : FEC Configuration: 0x0 000160: 0x00 Reg: 000160: 00 : DSC Enable: 0x0

See https://github.com/defagos/radars/tree/master/spm-symbolication-issues

I was able to fix it.

Thanks.

This is similar to FB8759414 (https://github.com/golang/go/issues/41702). Although that bug affects x86_64 as well, and the conditions to trigger it are different, the same uncatchable spurious SIGILL is being sent.