{"bug_type":"210","timestamp":"2026-03-12 22:27:21.00 +0100","os_version":"iPhone OS 26.4 (23E5234a)","roots_installed":0,"incident_id":"B09B8D67-B811-440F-97F6-0963BC9EA976"}
{
  "crashReporterKey" : "e21ab2fdf1a4883a4a17ea7fd5921c5f3c53b8b3",
  "panicProcessingFlags" : "0x0",
  "product" : "iPhone17,2",
  "kernel" : "Darwin Kernel Version 25.4.0: Fri Mar  6 00:10:23 PST 2026; root:xnu-12377.102.10~4\/RELEASE_ARM64_T8140",
  "socRevision" : "11",
  "panicString" : "panic(cpu 0 caller 0xfffffff0422ccb90): userspace watchdog timeout: no successful checkins from SpringBoard (0 induced crashes) in 180 seconds\nSpringBoard last exited with reason namespace: SIGNAL, code 6\nservice: backboardd, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: SpringBoard, total successful checkins in 2773 seconds: 259, last successful checkin: 180 seconds ago\nservice: audiomxd, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: logd, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: thermalmonitord, total successful checkins in 2796 seconds: 278, last successful checkin: 0 seconds ago\nservice: runningboardd, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: wifid, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: configd, total successful checkins in 2796 seconds: 279, last successful checkin: 0 seconds ago\nservice: CommCenter, total successful checkins in 2796 seconds: 278, last successful checkin: 0 seconds ago\n\nDebugger message: panic\nMemory ID: 0x1\nOS release type: Beta\nOS version: 23E5234a\nKernel version: Darwin Kernel Version 25.4.0: Fri Mar  6 00:10:23 PST 2026; root:xnu-12377.102.10~4\/RELEASE_ARM64_T8140\nExclaves boot status: BOOTED_EXCLAVEKIT\nFileset Kernelcache UUID: C683BAF6973B651ECA12193C5CECB827\nKernel UUID: A4C179A6-211D-30E4-90AE-FB8B4E2CA857\nBoot session UUID: B09B8D67-B811-440F-97F6-0963BC9EA976\niBoot version: mBoot-18000.102.3\niBoot Stage 2 version: \nsecure boot?: YES\nroots installed: 0\nPaniclog version: 15\nDebug Header address: 0xfffffff020f05000\nDebug Header entry count: 3\nTXM load address: 0xfffffff030e6c000\nTXM UUID: 11B83C63-3534-3658-9E9A-F8D42D448F3C\nDebug Header kernelcache load address: 0xfffffff040e6c000\nDebug Header kernelcache UUID: C683BAF6-973B-651E-CA12-193C5CECB827\nSPTM load address: 0xfffffff020e6c000\nSPTM UUID: D41D5116-8AEA-39CF-975C-1124C2302AD3\nKernelCache slide: 0x0000000039e68000\nKernelCache base:  0xfffffff040e6c000\nKernel slide:      0x0000000039e70000\nKernel text base:  0xfffffff040e74000\nKernel text exec slide: 0x000000003d4a4000\nKernel text exec base:  0xfffffff0444a8000\nmach_absolute_time: 0xfa1e0c603\nEpoch Time:        sec       usec\n  Boot    : 0x69b324b4 0x000102b8\n  Sleep   : 0x00000000 0x00000000\n  Wake    : 0x00000000 0x00000000\n  Calendar: 0x69b32f99 0x0002ecad\n\nZone info:\n  Zone map: 0xffffffe1ab404000 - 0xffffffe7ab404000\n  . VM    : 0xffffffe1ab404000 - 0xffffffe291a68000\n  . RO    : 0xffffffe292000000 - 0xffffffe2e0000000\n  . GEN0  : 0xffffffe2e0000000 - 0xffffffe3c61c0000\n  . GEN1  : 0xffffffe3c61c0000 - 0xffffffe4ac380000\n  . GEN2  : 0xffffffe4ac380000 - 0xffffffe592540000\n  . GEN3  : 0xffffffe592540000 - 0xffffffe678704000\n  . DATA  : 0xffffffe678704000 - 0xffffffe7ab404000\n  Metadata: 0xffffffdc014ac000 - 0xffffffdc02cac000\n  Bitmaps : 0xffffffdc02cac000 - 0xffffffdc04258000\n  Extra   : 0 - 0\n\nCORE 0 [EACC0] recently retired instr at 0x0000000000000000\nCORE 1 [EACC0] recently retired instr at 0x0000000000000000\nCORE 2 [EACC0] recently retired instr at 0x0000000000000000\nCORE 3 [EACC0] recently retired instr at 0x0000000000000000\nCORE 4 [PACC1] recently retired instr at 0x0000000000000000\nCORE 5 [PACC1] recently retired instr at 0x0000000000000000\nTPIDRx_ELy = {1: 0xffffffe5937e0180  0: 0x0000000000000000  0ro: 0x000000016dd7b0e0 }\nCORE 0 is the one that panicked. Check the full backtrace for details.\nCORE 1: PC=0xfffffff0444acdbc, LR=0x0000000238173564, FP=0xffffffee62ba7f20\nCORE 2: PC=0xfffffff044699e90, LR=0xfffffff044699e8c, FP=0xffffffee631c7e30\nCORE 3: PC=0xfffffff044699e90, LR=0xfffffff044699e8c, FP=0xffffffee634f7e30\nCORE 4: PC=0xfffffff044699e90, LR=0xfffffff044699e8c, FP=0xffffffee636e7e30\nCORE 5: PC=0xfffffff04455ee48, LR=0xfffffff04455ee48, FP=0xffffffee63397ed0\nCompressor Info: 30% of compressed pages limit (OK) and 19% of segments limit (OK) with 2 swapfiles and OK swap space\nTotal cpu_usage: 54219030\nThread task pri cpu_usage\n0xffffffe5937e0180 watchdogd 97 0\n0xffffffe594c0e890 cfprefsd 37 54722\n0xffffffe5928520c0 kernel_task 0 3616178\n0xffffffe592850180 kernel_task 0 4291923\n0xffffffe5928518f0 kernel_task 0 4444381\n\nPanicked task 0xffffffe591c73408: 879 pages, 4 threads: pid 61: watchdogd\nPanicked thread: 0xffffffe5937e0180, backtrace: 0xffffffee62816f60, tid: 2051\n\t\t  lr: 0xfffffff0444fb7b0  fp: 0xffffffee62817000\n\t\t  lr: 0xfffffff044696f1c  fp: 0xffffffee62817070\n\t\t  lr: 0xfffffff0446951d4  fp: 0xffffffee62817140\n\t\t  lr: 0xfffffff0444acd5c  fp: 0xffffffee62817150\n\t\t  lr: 0xfffffff0444fbaf4  fp: 0xffffffee628174f0\n\t\t  lr: 0xfffffff0444fb118  fp: 0xffffffee628176c0\n\t\t  lr: 0xfffffff044d2f7b0  fp: 0xffffffee62817720\n\t\t  lr: 0xfffffff0422ccb90  fp: 0xffffffee62817740\n\t\t  lr: 0xfffffff0422cbf68  fp: 0xffffffee62817760\n\t\t  lr: 0xfffffff0422cad64  fp: 0xffffffee62817880\n\t\t  lr: 0xfffffff044c8eee4  fp: 0xffffffee628178b0\n\t\t  lr: 0xfffffff044c8f1a8  fp: 0xffffffee62817a40\n\t\t  lr: 0xfffffff0446556c4  fp: 0xffffffee62817b60\n\t\t  lr: 0xfffffff04452b0cc  fp: 0xffffffee62817c00\n\t\t  lr: 0xfffffff0444d6d70  fp: 0xffffffee62817c60\n\t\t  lr: 0xfffffff0444ecc28  fp: 0xffffffee62817d90\n\t\t  lr: 0xfffffff04468fcdc  fp: 0xffffffee62817e40\n\t\t  lr: 0xfffffff0446958a4  fp: 0xffffffee62817f10\n\t\t  lr: 0xfffffff0444acd5c  fp: 0xffffffee62817f20\n\t\t  lr: 0x000000023816dcd4  fp: 0x0000000000000000\n      Kernel Extensions in backtrace:\n         com.apple.driver.AppleARMWatchdogTimer(1.0)[4B40B80B-5EAB-3FDE-9DB4-D733100B3994]@0xfffffff0422c7810->0xfffffff0422ccb8f\n            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[5FECA745-A507-37E0-853F-9757825490A7]@0xfffffff042275f40->0xfffffff0422c780f\n         com.apple.driver.AppleAVD(960.0)[FEF27396-C531-3C71-B45F-C65713A051F0]@0xfffffff0422ccb90->0xfffffff042326547\n            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[5FECA745-A507-37E0-853F-9757825490A7]@0xfffffff042275f40->0xfffffff0422c780f\n            dependency: com.apple.driver.FairPlayIOKit(72.16.0)[B05576E0-A154-3285-A9D4-88717C8D8456]@0xfffffff0435e6d20->0xfffffff04380640b\n            dependency: com.apple.iokit.CoreAnalyticsFamily(1)[9AF188B8-D884-3863-91B3-6DBB1C99AC24]@0xfffffff043583a90->0xfffffff04358bffb\n            dependency: com.apple.iokit.IOSurface(393.5.7)[A0CFC976-7961-337F-AA3F-B9851AE06069]@0xfffffff043d227a0->0xfffffff043d51693\n\n\nlast started kext at 503410435: com.apple.driver.AppleUSBEthernetDevice\t7.0 (addr 0xfffffff0415ef560, size 4690)\nloaded kexts: (skipped, see boot kernelcache)\n\n",
  "socId" : "8140",
  "date" : "2026-03-12 22:27:21.60 +0100",
  "panicFlags" : "0xa02",
  "codeSigningMonitor" : 2,
  "incident" : "B09B8D67-B811-440F-97F6-0963BC9EA976",
  "build" : "iPhone OS 26.4 (23E5234a)",
  "bug_type" : "210",
  "roots_installed" : 0,
  "trmStatus" : 1,
  "otherString" : "** Exclaves panic stackshot found\n\n** Stackshot Succeeded ** Bytes Traced 416406 (Uncompressed 987056) **\nWriting local cores...\n\nBeginning dump of panic region of size 0x675e7\n100..\n100..Recorded panic region in corefile at offset 0x9000, compressed to 382923 bytes\n\nBeginning coredump of kernel\n10..\n20..\n30..\n40..\n50..\n60..\n70..\n80..\n90..\n100..\n100..Done\nCoredump complete of kernel, dumped 17053 segments (910671872 bytes), 6 threads (1728 bytes) overall uncompressed file length 911917316 bytes.\nCore dump took 6762753504 cycles\n Compressed file length is 283922084 bytes\n\nBeginning coredump of GFX-cp\n17..\n85..\n99..\n100..Done\nCoredump complete of GFX-cp, dumped 3 segments (1815696 bytes), 1 threads (288 bytes) overall uncompressed file length 1832388 bytes.\nCore dump took 109152009 cycles\n Compressed file length is 291661 bytes\n\nBeginning coredump of GFX1-cp\n17..\n85..\n99..\n100..Done\nCoredump complete of GFX1-cp, dumped 3 segments (1771888 bytes), 1 threads (288 bytes) overall uncompressed file length 1788580 bytes.\nCore dump took 108972154 cycles\n Compressed file length is 273640 bytes\n\nBeginning coredump of DCPEXT-cp\nDCPEXT coredump: iop is not active\ncoredump_init returned KERN_NODE_DOWN, skipping this core\n\nBeginning coredump of DCP-cp\nDCP coredump: failed to count pages. error = Timeout\n(kern_coredump_routine) : get_summary failed with 5\nFailed to dump coprocessor cores with error: 5\n",
  "PanicLogUtilizationMetrics" : {"PercentUsed":51,"PanicRegionSizeInBytes":819200,"UsedSizeInBytes":424675,"StackshotLengthInBytes":416406,"OtherLogLengthInBytes":1409,"PanicLogLengthInBytes":6635},
  "developerMode" : 1,
  "bootProgressRegister" : "0x2080000c",
  "repairStatus" : "1",
  "binaryImages" : [],
  "notes" : ["Source: (null)","missing stackshot buffer or size"]
}