哪位大哥帮帮我看看重启的原因，下面是trace代码

dragonteeth

1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "Exception type: prefetch abort"
1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "software version: _P1300_V1.11"
1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "boot mode: normal mode"
1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "rtc sec = 24, rtc min = 15, rtc hour = 0"
1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "rtc day = 1, rtc mon = 3, rtc wday = 1, rtc year = 9"
1804822:122575 [Trace] 14:49:25:296 2010/06/30 MOD_NIL, TRACE_ERROR "execution unit: MEDMED "
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "status: 0x00000000"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "stack pointer: 0x08519EAC"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "stack dump:"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "    0xA000599F"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "    0x0038AEDD"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "    0x00062649"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "    0x0038ABBD"
1804822:122575 [Trace] 14:49:25:312 2010/06/30 MOD_NIL, TRACE_ERROR "    0x00000307"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "    0x00000001"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "    0x0044DF4B"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "    0x00000001"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "    0x004C8DF1"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "    0x003DDC83"
1804822:122575 [Trace] 14:49:25:328 2010/06/30 MOD_NIL, TRACE_ERROR "number of messages in the external queue: 0"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "messages in the external queue:"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:343 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"
1804822:122575 [Trace] 14:49:25:359 2010/06/30 MOD_NIL, TRACE_ERROR "    MSG_ID_INVALID_TYPE"

yaohui911

结合sym文件，恢复相应的call stack。没有lr？
必现可以使用jtag跟踪。

Justinyue

也想知道这种问题如何查找原因，好象要结合sym 文件分析，可惜没有debug过
。。。

perennial

Pre-fetch / Data Abort Exception
An abort indicates that the current memory access cannot be completed.

估计是内存出问题了。可以详细描述下复现场景，帮你推断推断。