iPad意外重启，是什么问题

{"bug_type":"210","timestamp":"2020-08-22 16:27:56.00 +0800","os_version":"iPhone OS 14.0 (18A5351d)","incident_id":"00E98AC7-7DC4-46B3-AD68-980F40F1109F"}

{

"build" : "iPhone OS 14.0 (18A5351d)",

"product" : "iPad7,3",

"kernel" : "Darwin Kernel Version 20.0.0: Wed Aug 12 22:56:55 PDT 2020; root:xnu-7195.0.33~64\/RELEASE_ARM64_T8010",

"incident" : "00E98AC7-7DC4-46B3-AD68-980F40F1109F",

"crashReporterKey" : "0aee3885d2ef72d53a6b43fd0be6421bbe598171",

"date" : "2020-08-22 16:27:56.20 +0800",

"panicString" : "panic(cpu 2 caller 0xfffffff01fe59d74): mbuf_watchdog: 1 waiters stuck for 31 secs\n6113\/6130 mbufs in use:\n\t6100 mbufs allocated to data\n\t13 mbufs allocated to socket names and addresses\n\t17 mbufs allocated to caches\n960\/960 mbuf 2KB clusters in use\n3068\/3068 mbuf 4KB clusters in use\n2048\/2048 mbuf 16KB clusters in use\n49040 KB allocated to network (approx. 99% in use)\n39700 KB returned to the system\nVM allocation failures: contiguous 0, normal 0, one page 0\nworker thread runs: 1342, expansions: 103, cl 943\/9511, bigcl 0\/0, 16k 398\/4531\nworker thread last run time: 69610 (31 seconds ago)\ndrain routine last run time: 69560 (81 seconds ago)\n\nmbuf leak detection table:\n\ttotal captured: 6057 (one per 500)\n\ttotal allocs outstanding: 21\n\tnew hash recorded: 6039 allocs, 6007 traces\n\thash collisions: 3 allocs, 16 traces\n\toverwrites: 5565 allocs, 0 traces\n\tlock conflicts: 0\n\ntop 5 outstanding traces:\n[1] 8 outstanding alloc(s), 25 hit(s), 0 collision(s)\n[2] 3 outstanding alloc(s), 19 hit(s), 14 collision(s)\n[3] 3 outstanding alloc(s), 15 hit(s), 0 collision(s)\n[4] 3 outstanding alloc(s), 3 hit(s), 0 collision(s)\n[5] 3 outstanding alloc(s), 678 hit(s), 0 collision(s)\n\n trace [1] trace [2] trace [3] \ttrace [4] trace [5] \n ------------------ ------------------ ------------------ ------------------ ------------------ \n 1: 0xfffffff0075aa6b8