HTTP2 connectStartDate，connectEndDate, dnsStartDate and dnsEndDate is nil。
rencheng
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From the statistical point of view, the proportion of data whose fetchStartDate time is later than domainLookupStartDate time is 4/100,000. The data case is as follows：
I found that fetchStartDate value is similar to requestStartDate，this is bug？
Incident Identifier: 37DC5318-E1B3-4FA1-AF6D-97069D2840F1
CrashReporter Key: 6a35c230d4736fce8dcdb30549fd5f9bad4d2daf
Hardware Model: iPhone15,2
Process: BitAutoPlusStore [10348]
Path: /private/var/containers/Bundle/Application/CC626F64-B677-44AF-9164-169AC14DDF07/BitAutoPlusStore.app/BitAutoPlusStore
Identifier: bitauto.application
Version: 610.88.1
BundleVersion: 20230413204115
k_crash_ver: 1.3.9
UDID: 1289B6C0-A722-49A4-96CE-35E059688C8C
Code Type: ARM-64
Parent Process: ? [1]
Date/Time: 2023-04-22 15:21:11.506 +0800
OS Version: iOS 16.1.1 (20B101)
Report Version: 104
Exception Category: mach
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000000000001e
Crashed Thread: 7
Thread 0:
0 libsystem_kernel.dylib 0x0000000215851b48 0x215851000 + 2888
1 libsystem_kernel.dylib 0x0000000215864008 0x215851000 + 77832
2 libsystem_kernel.dylib 0x0000000215864248 0x215851000 + 78408
3 libsystem_kernel.dylib 0x000000021585208c 0x215851000 + 4236
4 CoreFoundation 0x00000001d8cceaf0 0x1d8c54000 + 502512
5 CoreFoundation 0x00000001d8ccfd34 0x1d8c54000 + 507188
6 CoreFoundation 0x00000001d8cd4ed4 0x1d8c54000 + 528084
7 GraphicsServices 0x0000000211fd2368 0x211fd1000 + 4968
8 UIKitCore 0x00000001db1b33d0 0x1dae11000 + 3810256
9 UIKitCore 0x00000001db1b3034 0x1dae11000 + 3809332
10 BitAutoPlusStore 0x0000000102a9f524 0x102a98000 + 29988
11 (null) 0x00000001f733c960 0x0 + 8442333536
Thread 1:
0 libsystem_kernel.dylib 0x0000000215852008 0x215851000 + 4104
1 libsystem_c.dylib 0x00000001e02767d8 0x1e0271000 + 22488
2 Foundation 0x00000001d30e6b60 0x1d3034000 + 732000
3 BitAutoPlusStore 0x0000000106c9a4ec 0x102a98000 + 69215468
4 libdispatch.dylib 0x00000001e022c4b4 0x1e022a000 + 9396
5 libdispatch.dylib 0x00000001e022dfdc 0x1e022a000 + 16348
6 libdispatch.dylib 0x00000001e0235694 0x1e022a000 + 46740
7 libdispatch.dylib 0x00000001e02361e0 0x1e022a000 + 49632
8 libdispatch.dylib 0x00000001e0240e10 0x1e022a000 + 93712
9 libsystem_pthread.dylib 0x0000000225cb3df8 0x225cb3000 + 3576
Thread 4 name: com.apple.uikit.eventfetch-thread
Thread 4:
0 libsystem_kernel.dylib 0x0000000215851b48 0x215851000 + 2888
1 libsystem_kernel.dylib 0x0000000215864008 0x215851000 + 77832
2 libsystem_kernel.dylib 0x0000000215864248 0x215851000 + 78408
3 libsystem_kernel.dylib 0x000000021585208c 0x215851000 + 4236
4 CoreFoundation 0x00000001d8cceaf0 0x1d8c54000 + 502512
5 CoreFoundation 0x00000001d8ccfd34 0x1d8c54000 + 507188
6 CoreFoundation 0x00000001d8cd4ed4 0x1d8c54000 + 528084
7 Foundation 0x00000001d3076334 0x1d3034000 + 271156
8 Foundation 0x00000001d307621c 0x1d3034000 + 270876
9 UIKitCore 0x00000001db2e833c 0x1dae11000 + 5075772
10 Foundation 0x00000001d308f808 0x1d3034000 + 374792
11 libsystem_pthread.dylib 0x0000000225cb46cc 0x225cb3000 + 5836
Thread 7 Crashed:
0 libxpc.dylib 0x0000000225d0bf80 0x225cf7000 + 85888
1 libxpc.dylib 0x0000000225d21588 0x225cf7000 + 173448
2 libxpc.dylib 0x0000000225d21588 0x225cf7000 + 173448
3 Network 0x00000001d97644fc 0x1d903a000 + 7513340
4 libobjc.A.dylib 0x00000001d1f754a4 0x1d1f74000 + 5284
5 libobjc.A.dylib 0x00000001d1f7a298 0x1d1f74000 + 25240
6 libobjc.A.dylib 0x00000001d1f83994 0x1d1f74000 + 63892
7 Network 0x00000001d97671c0 0x1d903a000 + 7524800
8 Network 0x00000001d9739554 0x1d903a000 + 7337300
9 Network 0x00000001d93c5dac 0x1d903a000 + 3718572
10 Network 0x00000001d99369e8 0x1d903a000 + 9423336
11 libobjc.A.dylib 0x00000001d1f754a4 0x1d1f74000 + 5284
12 libobjc.A.dylib 0x00000001d1f7a298 0x1d1f74000 + 25240
13 libobjc.A.dylib 0x00000001d1f83994 0x1d1f74000 + 63892
14 Network 0x00000001d993ce14 0x1d903a000 + 9448980
15 Network 0x00000001d9933bb4 0x1d903a000 + 9411508
16 libobjc.A.dylib 0x00000001d1f754a4 0x1d1f74000 + 5284
17 libobjc.A.dylib 0x00000001d1f7a298 0x1d1f74000 + 25240
18 libobjc.A.dylib 0x00000001d1f83994 0x1d1f74000 + 63892
19 Network 0x00000001d99347c4 0x1d903a000 + 9414596
20 Network 0x00000001d978acec 0x1d903a000 + 7671020
21 Network 0x00000001d9789b3c 0x1d903a000 + 7666492
22 Network 0x00000001d978959c 0x1d903a000 + 7665052
23 Network 0x00000001d978cf98 0x1d903a000 + 7679896
24 libsystem_info.dylib 0x00000001e71e945c 0x1e71e5000 + 17500
25 libsystem_info.dylib 0x00000001e71f90d4 0x1e71e5000 + 82132
26 libdispatch.dylib 0x00000001e022c4b4 0x1e022a000 + 9396
27 libdispatch.dylib 0x00000001e022dfdc 0x1e022a000 + 16348
28 libdispatch.dylib 0x00000001e02310c8 0x1e022a000 + 28872
29 libdispatch.dylib 0x00000001e023fa6c 0x1e022a000 + 88684
30 libdispatch.dylib 0x00000001e0240284 0x1e022a000 + 90756
31 libsystem_pthread.dylib 0x0000000225cb3dbc 0x225cb3000 + 3516
Thread 8 name: com.apple.CFNetwork.CustomProtocols
Thread 8:
0 libsystem_kernel.dylib 0x0000000215851b48 0x215851000 + 2888
1 libsystem_kernel.dylib 0x0000000215864008 0x215851000 + 77832
2 libsystem_kernel.dylib 0x0000000215864248 0x215851000 + 78408
3 libsystem_kernel.dylib 0x000000021585208c 0x215851000 + 4236
4 CoreFoundation 0x00000001d8cceaf0 0x1d8c54000 + 502512
5 CoreFoundation 0x00000001d8ccfd34 0x1d8c54000 + 507188
6 CoreFoundation 0x00000001d8cd4ed4 0x1d8c54000 + 528084
7 CFNetwork 0x00000001da02c5a8 0x1d9dd6000 + 2450856
8 Foundation 0x00000001d308f808 0x1d3034000 + 374792
9 libsystem_pthread.dylib 0x0000000225cb46cc 0x225cb3000 + 5836