还是与这个权限无关呢？
02-24 09:00:43.198 818 16229 F libc : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x35e in tid 16229 (HwBinder:818_3), pid 818 (drm@1.2-service)
02-24 09:00:43.195 818 818 W HwBinder:818_3: type=1400 audit(0.0:21338): avc: denied { read } for name="u:object_r:persist_debug_prop:s0" dev="tmpfs" ino=16940 scontext=u:r:hal_drm_widevine:s0 tcontext=u:object_r:persist_debug_prop:s0 tclass=file permissive=0
完整log：
02-24 09:00:43.151 818 16229 I WVCdm : [cdm_engine.cpp(326):AddKey] CdmEngine::AddKey: sid178
02-24 09:00:43.151 818 16229 I WVCdm : [usage_table_header.cpp(144):AddEntry] UsageTableHeader::AddEntry: Lock
02-24 09:00:43.151 818 16229 I WVCdm : [usage_table_header.cpp(195):AddEntry] UsageTableHeader::AddEntry: usage entry #: 58
02-24 09:00:43.198 818 16229 F libc : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x35e in tid 16229 (HwBinder:818_3), pid 818 (drm@1.2-service)
02-24 09:00:43.198 818 16229 E libc : Access denied finding property "persist.debug.coredump"
02-24 09:00:43.195 818 818 W HwBinder:818_3: type=1400 audit(0.0:21338): avc: denied { read } for name="u:object_r:persist_debug_prop:s0" dev="tmpfs" ino=16940 scontext=u:r:hal_drm_widevine:s0 tcontext=u:object_r:persist_debug_prop:s0 tclass=file permissive=0
02-24 09:00:43.214 812 1561 E CHIUSECASE: [ERROR ] chxextensionmodule.cpp:613 MonitorThreadProcessing() open /proc/self/statm ret 0 mCameraOpen 1 buffer 808984 30557 15166 3 0 151612 0
02-24 09:00:43.214 812 1561 E CHIUSECASE:
02-24 09:00:43.237 16440 16440 I crash_dump64: obtaining output fd from tombstoned, type: kDebuggerdTombstone
02-24 09:00:43.240 1262 1262 I /system/bin/tombstoned: received crash request for pid 16229
02-24 09:00:43.241 16440 16440 I crash_dump64: performing dump of process 818 (target tid = 16229)
02-24 09:00:43.242 16440 16440 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
02-24 09:00:43.243 16440 16440 F DEBUG : Build fingerprint: 'meizu/m2081/m2081:10/QKQ1.200127.002/1582477560:user/release-keys'
02-24 09:00:43.243 16440 16440 F DEBUG : Revision: '0'
02-24 09:00:43.243 16440 16440 F DEBUG : ABI: 'arm64'
02-24 09:00:43.243 16440 16440 F DEBUG : Timestamp: 2020-02-24 09:00:43+0000
02-24 09:00:43.243 16440 16440 F DEBUG : pid: 818, tid: 16229, name: HwBinder:818_3 >>> /vendor/bin/hw/android.hardware.drm@1.2-service.widevine <<<
02-24 09:00:43.243 16440 16440 F DEBUG : uid: 1013
02-24 09:00:43.243 16440 16440 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x35e
02-24 09:00:43.243 16440 16440 F DEBUG : Cause: null pointer dereference
02-24 09:00:43.243 16440 16440 F DEBUG : x0 0000000000000000 x1 000000000000006b x2 00000000000000dc x3 000000003c6ef35f
02-24 09:00:43.243 16440 16440 F DEBUG : x4 000000000000660d x5 000000000019660d x6 000000000000000b x7 000000000000c146
02-24 09:00:43.243 16440 16440 F DEBUG : x8 00000076d0c5b440 x9 0000000000000001 x10 0000000000000001 x11 00000076ce805750
02-24 09:00:43.243 16440 16440 F DEBUG : x12 0000000000000000 x13 0000000000000001 x14 00000076ce805780 x15 000000000000009b
02-24 09:00:43.243 16440 16440 F DEBUG : x16 00000076d0c427a8 x17 00000076d06c7280 x18 0000000000000069 x19 0000000000000353
02-24 09:00:43.243 16440 16440 F DEBUG : x20 00000000c23f5008 x21 00000076d0bfd52f x22 000000000000044c x23 00000076d18b0000
02-24 09:00:43.243 16440 16440 F DEBUG : x24 00000076d0c5b5b8 x25 00000076d0bee0cf x26 00000076cc5ffb80 x27 000000005ff3a98d
02-24 09:00:43.243 16440 16440 F DEBUG : x28 0009850bc021bd88 x29 00000076cc5ffaf0
02-24 09:00:43.243 16440 16440 F DEBUG : sp 00000076cc5ffaf0 lr 00000076d18ae16c pc 00000076d18ae1cc
02-24 09:00:43.308 16440 16440 F DEBUG :
02-24 09:00:43.308 16440 16440 F DEBUG : backtrace:
02-24 09:00:43.308 16440 16440 F DEBUG : #00 pc 00000000000001cc <anonymous:76d18ae000>
02-24 09:00:43.357 1607 2544 W NativeCrashListener: Couldn't find ProcessRecord for pid 818
02-24 09:00:43.358 16440 16440 E crash_dump64: AM data write failed: Broken pipe
02-24 09:00:43.360 1262 1262 E /system/bin/tombstoned: Tombstone written to: /data/tombstones/tombstone_00
