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Permanent Safari Background Crashes

M

MOM20xx

macrumors member
Original poster
Hi,
today i updated an iPhone 14 Pro from iOS 18.7.2 to iOS26.2 also i updated an iPad A16 from iOS 18.7.2 to iOS26.2 on both devices Analytics Data is full with Files named ExecUserFault_Mobile_Safari-xxxxxxx.ips.

Content of this Files:

Code: 
-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process:             MobileSafari [971]
Path:                /private/var/containers/Bundle/Application/0EA2B535-24EB-46A3-AE16-0609CD711D44/MobileSafari.app/MobileSafari
Identifier:          com.apple.mobilesafari
Version:             26.2 (8623.1.14.10.9)
Code Type:           ARM-64 (Native)
Role:                Unspecified
Parent Process:      ??? [1]
Coalition:           com.apple.mobilesafari [907]
User ID:             501

Date/Time:           2025-12-16 14:47:47.0562 +0100
Launch Time:         
Hardware Model:      iPhone15,2
OS Version:          iPhone OS 26.2 (23C55)
Release Type:        User
Baseband Version:    4.20.01

Crash Reporter Key:  82e8eb75151b552b6288d5c84283889148fe2446
Incident Identifier: DAD14215-3AFF-4A2E-914E-2583140E3150

Time Awake Since Boot: 5100 seconds

Triggered by Thread: 0

Exception Type:    EXC_GUARD
Exception Subtype: GUARD_TYPE_USER
Exception Message: namespc 31 reason_code 0x0000000000000000
Exception Codes:   0x600000000000001f, 0x0000000000000000

Termination Reason:  Namespace WEBKIT, Code 0,


Thread 0:
0   ???                                      0x22db0e96c 0x180000000 + 2914052460
1   ???                                      0x1800b7c00 0x180000000 + 752640
2   ???                                      0x1800b6df4 0x180000000 + 749044
3   ???                                      0x1800b69b4 0x180000000 + 747956
4   ???                                      0x18009ad1c 0x180000000 + 634140
5   ???                                      0x1800974e4 0x180000000 + 619748
6   ???                                      0x1d4f61f40 0x180000000 + 1425416000
7   ???                                      0x216932f0c 0x180000000 + 2526228236
8   ???                                      0x21693337c 0x180000000 + 2526229372
9   ???                                      0x21693e1b0 0x180000000 + 2526273968
10  ???                                      0x21693cbf4 0x180000000 + 2526268404
11  ???                                      0x21693bb68 0x180000000 + 2526264168
12  ???                                      0x19de74200 0x180000000 + 501694976
13  ???                                      0x19e28c958 0x180000000 + 505989464
14  ???                                      0x19e28ad18 0x180000000 + 505982232
15  ???                                      0x19dcc08ac 0x180000000 + 499910828
16  ???                                      0x19e863218 0x180000000 + 512111128
17  ???                                      0x19e311718 0x180000000 + 506533656
18  ???                                      0x19d6ae214 0x180000000 + 493543956
19  ???                                      0x19d69c2d4 0x180000000 + 493470420
20  ???                                      0x19d6abe38 0x180000000 + 493534776
21  ???                                      0x19823684c 0x180000000 + 404973644
22  ???                                      0x198236604 0x180000000 + 404973060
23  ???                                      0x183179f10 0x180000000 + 51879696
24  ???                                      0x183179e84 0x180000000 + 51879556
25  ???                                      0x183157acc 0x180000000 + 51739340
26  ???                                      0x18312e6d8 0x180000000 + 51570392
27  ???                                      0x18312da6c 0x180000000 + 51567212
28  ???                                      0x224d54498 0x180000000 + 2765440152
29  ???                                      0x188b06df8 0x180000000 + 145780216
30  ???                                      0x188aafe54 0x180000000 + 145423956
31  ???                                      0x2167dfba0 0x180000000 + 2524838816
32  ???                                      0x18011ae28 0x180000000 + 1158696


Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x0000000000000000
    x4: 0x0000000000000000   x5: 0x0000000000000000   x6: 0x0000000000000000   x7: 0x0000000000000000
    x8: 0x0000000000000000   x9: 0x0000000000000000  x10: 0x0000000000000000  x11: 0x0000000000000000
   x12: 0x0000000000000000  x13: 0x0000000000000000  x14: 0x0000000000000000  x15: 0x0000000000000000
   x16: 0x0000000000000000  x17: 0x0000000000000000  x18: 0x0000000000000000  x19: 0x0000000000000000
   x20: 0x0000000000000000  x21: 0x0000000000000000  x22: 0x0000000000000000  x23: 0x0000000000000000
   x24: 0x0000000000000000  x25: 0x0000000000000000  x26: 0x0000000000000000  x27: 0x0000000000000000
   x28: 0x0000000000000000   fp: 0x0000000000000000   lr: 0x0000000000000000
    sp: 0x0000000000000000   pc: 0x0000000000000000 cpsr: 0x00000000
   far: 0x0000000000000000  esr: 0x00000000 (null)

Binary Images:
       0x180000000 -        0x2a04e5073 ??? unknown-arch  <af25fa78ae3e3bf4b3204404d3a36a77> ???

Error Formulating Crash Report:
PC register does not match crashing frame (0x0 vs 0x22DB0E96C)

I do not notice any Crash of Safari while surfing, but the devices gets more and more of this files. Forced restart did not change anything. also deleting website data did not change the situation. Also disabling UBlock Origin Lite Extension did not change behavior

Does anyone else also have this Crash Reports on iOS 26.2 or iPadOS 26.2?
 
MOM20xx said:
I do not notice any Crash of Safari while surfing, but the devices gets more and more of this files
Click to expand...
There's no information about GUARD_TYPE_USER and there's no additional information and
Code: 
Error Formulating Crash Report:
PC register does not match crashing frame (0x0 vs 0x22DB0E96C)
and the rest of the report has basically no information.

So I'm not sure what else there is to help you. Only apple could possibly symbolicate it, and that's only if the stack trace is even valid.
 
Code: 
-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process:             MobileSafari [1836]
Path:                /private/var/containers/Bundle/Application/0EA2B535-24EB-46A3-AE16-0609CD711D44/MobileSafari.app/MobileSafari
Identifier:          com.apple.mobilesafari
Version:             26.2 (8623.1.14.10.9)
Code Type:           ARM-64 (Native)
Role:                Unspecified
Parent Process:      ??? [1]
Coalition:           com.apple.mobilesafari [907]
User ID:             501

Date/Time:           2025-12-16 23:40:34.8450 +0100
Launch Time:        
Hardware Model:      iPhone15,2
OS Version:          iPhone OS 26.2 (23C55)
Release Type:        User
Baseband Version:    4.20.01

Crash Reporter Key:  82e8eb75151b552b6288d5c84283889148fe2446
Incident Identifier: AF5D7579-8A9D-4107-8CFB-4822D2731A89

Time Awake Since Boot: 14000 seconds

Triggered by Thread: 0

Exception Type:    EXC_GUARD
Exception Subtype: GUARD_TYPE_USER
Exception Message: namespc 31 reason_code 0x0000000000000000
Exception Codes:   0x600000000000001f, 0x0000000000000000

Termination Reason:  Namespace WEBKIT, Code 0,


Thread 0:
0   ???                                      0x22db0e96c 0x180000000 + 2914052460
1   ???                                      0x1800b7c00 0x180000000 + 752640
2   ???                                      0x1800b6df4 0x180000000 + 749044
3   ???                                      0x1800b69b4 0x180000000 + 747956
4   ???                                      0x18009ad1c 0x180000000 + 634140
5   ???                                      0x1800974e4 0x180000000 + 619748
6   ???                                      0x1d4f61f40 0x180000000 + 1425416000
7   ???                                      0x216932f0c 0x180000000 + 2526228236
8   ???                                      0x21693337c 0x180000000 + 2526229372
9   ???                                      0x21693e1b0 0x180000000 + 2526273968
10  ???                                      0x21692c518 0x180000000 + 2526201112
11  ???                                      0x21692c1c4 0x180000000 + 2526200260
12  ???                                      0x21692e294 0x180000000 + 2526208660
13  ???                                      0x21692de34 0x180000000 + 2526207540
14  ???                                      0x21692dd8c 0x180000000 + 2526207372
15  ???                                      0x21692dd2c 0x180000000 + 2526207276
16  ???                                      0x21692d13c 0x180000000 + 2526204220
17  ???                                      0x21692ce54 0x180000000 + 2526203476
18  ???                                      0x21692cda8 0x180000000 + 2526203304
19  ???                                      0x216871bb0 0x180000000 + 2525436848
20  ???                                      0x2168d0914 0x180000000 + 2525825300
21  ???                                      0x216871088 0x180000000 + 2525433992
22  ???                                      0x2169b4c78 0x180000000 + 2526760056
23  ???                                      0x18b91ea00 0x180000000 + 194112000
24  ???                                      0x18b98027c 0x180000000 + 194511484
25  ???                                      0x189568cd4 0x180000000 + 156667092
26  ???                                      0x189595bcc 0x180000000 + 156851148
27  ???                                      0x189595e98 0x180000000 + 156851864
28  ???                                      0x188ad3f9c 0x180000000 + 145571740
29  ???                                      0x188ad3f9c 0x180000000 + 145571740
30  ???                                      0x188ae20e0 0x180000000 + 145629408
31  ???                                      0x188ae43dc 0x180000000 + 145638364
32  ???                                      0x18e6d18bc 0x180000000 + 242030780
33  ???                                      0x18e6dcc28 0x180000000 + 242076712
34  ???                                      0x18998a93c 0x180000000 + 160999740
35  ???                                      0x189ebf724 0x180000000 + 166459172
36  ???                                      0x216972b30 0x180000000 + 2526489392
37  ???                                      0x189ea2170 0x180000000 + 166338928
38  ???                                      0x188ad6d38 0x180000000 + 145583416
39  ???                                      0x188ae5e28 0x180000000 + 145645096
40  ???                                      0x188ad8c50 0x180000000 + 145591376
41  ???                                      0x188ae6ee4 0x180000000 + 145649380
42  ???                                      0x188ae6374 0x180000000 + 145646452
43  ???                                      0x271ec1560 0x180000000 + 4058781024
44  ???                                      0x1831274cc 0x180000000 + 51541196
45  ???                                      0x1831570b0 0x180000000 + 51736752
46  ???                                      0x183156fd8 0x180000000 + 51736536
47  ???                                      0x18312ec1c 0x180000000 + 51571740
48  ???                                      0x18312da6c 0x180000000 + 51567212
49  ???                                      0x224d54498 0x180000000 + 2765440152
50  ???                                      0x188b06df8 0x180000000 + 145780216
51  ???                                      0x188aafe54 0x180000000 + 145423956
52  ???                                      0x2167dfba0 0x180000000 + 2524838816
53  ???                                      0x18011ae28 0x180000000 + 1158696


Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x0000000000000000
    x4: 0x0000000000000000   x5: 0x0000000000000000   x6: 0x0000000000000000   x7: 0x0000000000000000
    x8: 0x0000000000000000   x9: 0x0000000000000000  x10: 0x0000000000000000  x11: 0x0000000000000000
   x12: 0x0000000000000000  x13: 0x0000000000000000  x14: 0x0000000000000000  x15: 0x0000000000000000
   x16: 0x0000000000000000  x17: 0x0000000000000000  x18: 0x0000000000000000  x19: 0x0000000000000000
   x20: 0x0000000000000000  x21: 0x0000000000000000  x22: 0x0000000000000000  x23: 0x0000000000000000
   x24: 0x0000000000000000  x25: 0x0000000000000000  x26: 0x0000000000000000  x27: 0x0000000000000000
   x28: 0x0000000000000000   fp: 0x0000000000000000   lr: 0x0000000000000000
    sp: 0x0000000000000000   pc: 0x0000000000000000 cpsr: 0x00000000
   far: 0x0000000000000000  esr: 0x00000000 (null)

Binary Images:
       0x180000000 -        0x2a04e5073 ??? unknown-arch  <af25fa78ae3e3bf4b3204404d3a36a77> ???

Error Formulating Crash Report:
PC register does not match crashing frame (0x0 vs 0x22DB0E96C)

-----------
Full Report
-----------

{"is_simulated":1,"app_name":"MobileSafari","timestamp":"2025-12-16 23:40:34.00 +0100","app_version":"26.2","slice_uuid":"823c31ea-6b04-3bbe-9d10-556a17c3c985","build_version":"8623.1.14.10.9","platform":2,"bundleID":"com.apple.mobilesafari","share_with_app_devs":0,"is_first_party":1,"bug_type":"308","os_version":"iPhone OS 26.2 (23C55)","roots_installed":0,"name":"MobileSafari","incident_id":"AF5D7579-8A9D-4107-8CFB-4822D2731A89"}
{
  "uptime" : 14000,
  "procRole" : "Unspecified",
  "version" : 2,
  "userID" : 501,
  "deployVersion" : 210,
  "modelCode" : "iPhone15,2",
  "coalitionID" : 907,
  "osVersion" : {
    "isEmbedded" : true,
    "train" : "iPhone OS 26.2",
    "releaseType" : "User",
    "build" : "23C55"
  },
  "captureTime" : "2025-12-16 23:40:34.8450 +0100",
  "codeSigningMonitor" : 2,
  "incident" : "AF5D7579-8A9D-4107-8CFB-4822D2731A89",
  "pid" : 1836,
  "translated" : false,
  "cpuType" : "ARM-64",
  "procStartAbsTime" : 351308620864,
  "procName" : "MobileSafari",
  "procPath" : "\/private\/var\/containers\/Bundle\/Application\/0EA2B535-24EB-46A3-AE16-0609CD711D44\/MobileSafari.app\/MobileSafari",
  "bundleInfo" : {"CFBundleShortVersionString":"26.2","CFBundleVersion":"8623.1.14.10.9","CFBundleIdentifier":"com.apple.mobilesafari"},
  "storeInfo" : {"deviceIdentifierForVendor":"7DF8F069-6C5D-4B64-B695-849849F74B29"},
  "parentPid" : 1,
  "coalitionName" : "com.apple.mobilesafari",
  "crashReporterKey" : "82e8eb75151b552b6288d5c84283889148fe2446",
  "bootProgressRegister" : "0x20800004",
  "wasUnlockedSinceBoot" : 1,
  "isLocked" : 0,
  "codeSigningValidationCategory" : 0,
  "codeSigningTrustLevel" : 0,
  "bootSessionUUID" : "7275CC1D-4453-4C81-A3FF-6ABFB1C362BE",
  "basebandVersion" : "4.20.01",
  "isLightWeightCorpse" : 1,
  "exception" : {"codes":"0x600000000000001f, 0x0000000000000000","reason":0,"message":"namespc 31 reason_code 0x0000000000000000","subtype":"GUARD_TYPE_USER","type":"EXC_GUARD","rawCodes":[6917529027641081887,0],"namespc":31},
  "termination" : {"namespace":"WEBKIT","flags":518,"code":0},
  "faultingThread" : 0,
  "threads" : [{"id":244824,"frames":[{"imageOffset":2914052460,"imageIndex":0},{"imageOffset":752640,"imageIndex":0},{"imageOffset":749044,"imageIndex":0},{"imageOffset":747956,"imageIndex":0},{"imageOffset":634140,"imageIndex":0},{"imageOffset":619748,"imageIndex":0},{"imageOffset":1425416000,"imageIndex":0},{"imageOffset":2526228236,"imageIndex":0},{"imageOffset":2526229372,"imageIndex":0},{"imageOffset":2526273968,"imageIndex":0},{"imageOffset":2526201112,"imageIndex":0},{"imageOffset":2526200260,"imageIndex":0},{"imageOffset":2526208660,"imageIndex":0},{"imageOffset":2526207540,"imageIndex":0},{"imageOffset":2526207372,"imageIndex":0},{"imageOffset":2526207276,"imageIndex":0},{"imageOffset":2526204220,"imageIndex":0},{"imageOffset":2526203476,"imageIndex":0},{"imageOffset":2526203304,"imageIndex":0},{"imageOffset":2525436848,"imageIndex":0},{"imageOffset":2525825300,"imageIndex":0},{"imageOffset":2525433992,"imageIndex":0},{"imageOffset":2526760056,"imageIndex":0},{"imageOffset":194112000,"imageIndex":0},{"imageOffset":194511484,"imageIndex":0},{"imageOffset":156667092,"imageIndex":0},{"imageOffset":156851148,"imageIndex":0},{"imageOffset":156851864,"imageIndex":0},{"imageOffset":145571740,"imageIndex":0},{"imageOffset":145571740,"imageIndex":0},{"imageOffset":145629408,"imageIndex":0},{"imageOffset":145638364,"imageIndex":0},{"imageOffset":242030780,"imageIndex":0},{"imageOffset":242076712,"imageIndex":0},{"imageOffset":160999740,"imageIndex":0},{"imageOffset":166459172,"imageIndex":0},{"imageOffset":2526489392,"imageIndex":0},{"imageOffset":166338928,"imageIndex":0},{"imageOffset":145583416,"imageIndex":0},{"imageOffset":145645096,"imageIndex":0},{"imageOffset":145591376,"imageIndex":0},{"imageOffset":145649380,"imageIndex":0},{"imageOffset":145646452,"imageIndex":0},{"imageOffset":4058781024,"imageIndex":0},{"imageOffset":51541196,"imageIndex":0},{"imageOffset":51736752,"imageIndex":0},{"imageOffset":51736536,"imageIndex":0},{"imageOffset":51571740,"imageIndex":0},{"imageOffset":51567212,"imageIndex":0},{"imageOffset":2765440152,"imageIndex":0},{"imageOffset":145780216,"imageIndex":0},{"imageOffset":145423956,"imageIndex":0},{"imageOffset":2524838816,"imageIndex":0},{"imageOffset":1158696,"imageIndex":0}],"threadState":{"x":[{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0},{"value":0}],"flavor":"ARM_THREAD_STATE64","lr":{"value":0},"cpsr":{"value":0},"fp":{"value":0},"sp":{"value":0},"esr":{"value":0},"pc":{"value":0,"matchesCrashFrame":0},"far":{"value":0}}}],
  "usedImages" : [
  {
    "size" : 4836970612,
    "source" : "S",
    "base" : 6442450944,
    "uuid" : "af25fa78-ae3e-3bf4-b320-4404d3a36a77"
  }
],
  "legacyInfo" : {
  "threadTriggered" : {

  }
},
  "bug_type" : "308",
  "roots_installed" : 0,
  "trialInfo" : {
  "rollouts" : [
    {
      "rolloutId" : "642da32dea3b2418c750f848",
      "factorPackIds" : [
        "66d8b2f77cd4b62688efd2cf"
      ],
      "deploymentId" : 240000011
    },
    {
      "rolloutId" : "60da5e84ab0ca017dace9abf",
      "factorPackIds" : [

      ],
      "deploymentId" : 240000008
    }
  ],
  "experiments" : [
    {
      "treatmentId" : "582596be-1d4a-408d-901b-5b311c006a4a",
      "experimentId" : "65f31ccb74b6f500a45abda4",
      "deploymentId" : 400000026
    },
    {
      "treatmentId" : "2dd5d288-6694-4439-b538-0179c8ccbf84",
      "experimentId" : "686d94732ee4ac1a56129583",
      "deploymentId" : 400000008
    }
  ]
},
  "reportNotes" : [
  "PC register does not match crashing frame (0x0 vs 0x22DB0E96C)"
]
}
the last ips. this ist now the complete file. the first one was cutted because in another forum, there was a size limit
 
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