多次拨打电话并且挂断之后.会在某一次拨号界面会冻住.

分析过程

出问题的

有很多pending async transaction未返回.

binder proc state:
proc 3419
context hwbinder
  thread 760: l 00 need_return 0 tr 0
  thread 1655: l 00 need_return 0 tr 0
  thread 2858: l 00 need_return 0 tr 0
  thread 3419: l 00 need_return 0 tr 0
  thread 3442: l 00 need_return 0 tr 0
  thread 3453: l 00 need_return 0 tr 0
  thread 3512: l 02 need_return 0 tr 0
  thread 3586: l 00 need_return 0 tr 0
  thread 3597: l 00 need_return 0 tr 0
  thread 3600: l 00 need_return 0 tr 0
  thread 4031: l 00 need_return 0 tr 0
  node 123985: u0000000097ea23c0 c0000000097e9d8f0 pri 0:120 hs 0 hw 1 ls 0 lw 0 is 0 iw 1 tr 1 proc 251
  node 138919: u0000000097ea2c60 c0000000097e9e750 pri 0:120 hs 0 hw 1 ls 0 lw 0 is 0 iw 1 tr 1 proc 251
  node 15269: u00000000a64e9a40 c00000000a6712660 pri 0:120 hs 1 hw 1 ls 8 lw 0 is 1 iw 1 tr 1 proc 431
    pending async transaction 149963: e6fb8c80 from 0:0 to 3419:0 code 63 flags 11 pri 0:120 r0 node 15269 size 452:68 data f6a004d4
    pending async transaction 150734: c621e200 from 0:0 to 3419:0 code 37 flags 11 pri 0:120 r0 node 15269 size 68:4 data f6a008b8
    pending async transaction 162914: e96bc400 from 0:0 to 3419:0 code 7b flags 11 pri 0:120 r0 node 15269 size 92:8 data f6a040e4
    pending async transaction 164153: dc771b80 from 0:0 to 3419:0 code 7b flags 11 pri 0:120 r0 node 15269 size 92:8 data f6a04b3c
    pending async transaction 166022: ce803000 from 0:0 to 3419:0 code 7b flags 11 pri 0:120 r0 node 15269 size 92:8 data f6a05884
    pending async transaction 168226: d996c600 from 0:0 to 3419:0 code 7b flags 11 pri 0:120 r0 node 15269 size 92:8 data f6a06afc
    pending async transaction 168903: dfc07200 from 0:0 to 3419:0 code 7b flags 11 pri 0:120 r0 node 15269 size 92:8 data f6a07610
  node 15271: u00000000a64e9a60 c00000000a67126a0 pri 0:120 hs 1 hw 1 ls 55 lw 0 is 1 iw 1 tr 1 proc 431
    pending async transaction 148293: eac90a80 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a00418
    pending async transaction 154669: d2824780 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a03580
    pending async transaction 155165: ce943e00 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a0363c
    pending async transaction 159800: ec976600 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a038a8
    pending async transaction 160862: ce943300 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a039d0
    pending async transaction 162027: c6249780 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a03cd4
    pending async transaction 162517: ec2b6c80 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a03d90
    pending async transaction 162713: d7bae800 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a04028
    pending async transaction 162915: c3dfa980 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a041a4
    pending async transaction 162997: ec2b6400 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a0443c
    pending async transaction 163477: cea1c680 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a044f8
    pending async transaction 163528: dfc07900 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a045b4
    pending async transaction 163529: d086a080 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a04670
    pending async transaction 163571: d527dd80 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a04908
    pending async transaction 163931: e96bc780 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a049c4
    pending async transaction 163968: d0a73900 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a04a80
    pending async transaction 164154: dc771680 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a04bfc
    pending async transaction 164192: d7bae280 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a04e94
    pending async transaction 164243: d7bae680 from 0:0 to 3419:0 code a flags 11 pri 0:120 r0 node 15271 size 244:32 data f6a04f50
    pending async transaction 164271: d7bae980 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a051e8
    pending async transaction 164388: e5a41f80 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a052a4
    pending async transaction 164785: e96bc800 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a05360
    pending async transaction 164894: dc31c500 from 0:0 to 3419:0 code 9 flags 11 pri 0:120 r0 node 15271 size 76:4 data f6a0541c

另外,会有一个:

radio         2973  1612   270 1131000  78576 diagchar_read af10a6a0 S m.android.phone
这样的进程.

kill -3 某个2973,程序会继续往下跑

具体看附件

file 目录下面

改NV值70287 可以规避问题,但未找到根本原因.

后续有时间继续跟踪