gdb調試之---當commit時碰到的第一個等待事件是什嗎？

(gdb) qThe program is running.  Quit anyway (and detach it)? (y or n) yDetaching from program: /u01/app/oracle/product/11.2.0/bin/oracle, process 7376

[oracle@mydb ~]$ gdb $ORACLE_HOME/bin/oracle 7376GNU gdb Fedora (6.8-27.el5)Copyright (C) 2008 Free Software Foundation, Inc.License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>This is free software: you are free to change and redistribute it.There is NO WARRANTY, to the extent permitted by law.  Type "show copying"and "show warranty" for details.This GDB was configured as "x86_64-redhat-linux-gnu"...(no debugging symbols found)Attaching to program: /u01/app/oracle/product/11.2.0/bin/oracle, process 7376Reading symbols from /u01/app/oracle/product/11.2.0/lib/libodm11.so...(no debugging symbols found)...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libodm11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libcell11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libcell11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libskgxp11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libskgxp11.soReading symbols from /lib64/librt.so.1...done.Loaded symbols for /lib64/librt.so.1Reading symbols from /u01/app/oracle/product/11.2.0/lib/libnnz11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libnnz11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libclsra11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libclsra11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libdbcfg11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libdbcfg11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libhasgen11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libhasgen11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libskgxn2.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libskgxn2.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libocr11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libocr11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libocrb11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libocrb11.soReading symbols from /u01/app/oracle/product/11.2.0/lib/libocrutl11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libocrutl11.soReading symbols from /usr/lib64/libaio.so.1...done.Loaded symbols for /usr/lib64/libaio.so.1Reading symbols from /lib64/libdl.so.2...done.Loaded symbols for /lib64/libdl.so.2Reading symbols from /lib64/libm.so.6...done.Loaded symbols for /lib64/libm.so.6Reading symbols from /lib64/libpthread.so.0...done.[Thread debugging using libthread_db enabled][New Thread 0x2b0b8fef0910 (LWP 7376)]Loaded symbols for /lib64/libpthread.so.0Reading symbols from /lib64/libnsl.so.1...done.Loaded symbols for /lib64/libnsl.so.1Reading symbols from /lib64/libc.so.6...done.Loaded symbols for /lib64/libc.so.6Reading symbols from /lib64/ld-linux-x86-64.so.2...done.Loaded symbols for /lib64/ld-linux-x86-64.so.2Reading symbols from /usr/lib64/libnuma.so.1...done.Loaded symbols for /usr/lib64/libnuma.so.1Reading symbols from /lib64/libnss_files.so.2...done.Loaded symbols for /lib64/libnss_files.so.2Reading symbols from /u01/app/oracle/product/11.2.0/lib/libnque11.so...done.Loaded symbols for /u01/app/oracle/product/11.2.0/lib/libnque11.so0x0000003f0d40d290 in __read_nocancel () from /lib64/libpthread.so.0(gdb) 

gyj@OCM> commit;

(gdb) b kslwtbctxBreakpoint 1 at 0x8f9a5c2(gdb) cContinuing.Breakpoint 1, 0x0000000008f9a5c2 in kslwtbctx ()(gdb) 

(gdb) info all-registerrax            0x8f     143rbx            0x1      1rcx            0x11263  70243rdx            0x11974  72052rsi            0x2acf2e 2805550rdi            0x7fff1c577028   140733668880424rbp            0x7fff1c576ed0   0x7fff1c576ed0rsp            0x7fff1c576ed0   0x7fff1c576ed0r8             0x0      0r9             0x7a59   31321r10            0x9b0abcb8       2601172152r11            0x0      0r12            0x1      1r13            0x0      0r14            0xbb132a4        196162212r15            0x1      1rip            0x8f9a5c2        0x8f9a5c2 <kslwtbctx+4>eflags         0x246    [ PF ZF IF ]cs             0x33     51ss             0x2b     43ds             0x0      0es             0x0      0fs             0x0      0gs             0x0      0st0            0        (raw 0x00000000000000000000)---Type <return> to continue, or q <return> to quit---st1            0        (raw 0x00000000000000000000)st2            0        (raw 0x00000000000000000000)st3            0        (raw 0x00000000000000000000)st4            0        (raw 0x00000000000000000000)st5            0        (raw 0x00000000000000000000)st6            333296   (raw 0x4011a2be000000000000)st7            300384   (raw 0x401192ac000000000000)fctrl          0x27f    639fstat          0x0      0ftag           0xffff   65535fiseg          0x0      0fioff          0x9394e95        154750613foseg          0x7fff   32767fooff          0x1c573f50       475479888fop            0x0      0xmm0           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm1           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm2           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm3           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0xfe, 0xff, 0xff, 0xff,     0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, v8_int16 = {0xfffe, 0xffff, 0xffff, 0xffff, 0xfffe, 0xffff,     0xffff, 0xffff}, v4_int32 = {0xfffffffe, 0xffffffff, 0xfffffffe, 0xffffffff}, v2_int64 = {0xfffffffffffffffe, 0xfffffffffffffffe},   uint128 = 0xfffffffffffffffefffffffffffffffe}---Type <return> to continue, or q <return> to quit---xmm4           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm5           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x32, 0xa3, 0xd7, 0x2, 0x0 <repeats 12 times>},   v8_int16 = {0xa332, 0x2d7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x2d7a332, 0x0, 0x0, 0x0}, v2_int64 = {0x2d7a332, 0x0},   uint128 = 0x00000000000000000000000002d7a332}xmm6           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm7           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0xda, 0x87, 0xd7, 0x2, 0x0 <repeats 12 times>},   v8_int16 = {0x87da, 0x2d7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x2d787da, 0x0, 0x0, 0x0}, v2_int64 = {0x2d787da, 0x0},   uint128 = 0x00000000000000000000000002d787da}xmm8           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm9           {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm10          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm11          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm12          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x18, 0xe, 0x73, 0x90, 0xb, 0x2b, 0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0xe18, 0x9073, 0x2b0b, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x90730e18, 0x2b0b, 0x0, 0x0},   v2_int64 = {0x2b0b90730e18, 0x0}, uint128 = 0x000000000000000000002b0b90730e18}xmm13          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}xmm14          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}---Type <return> to continue, or q <return> to quit---xmm15          {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0,     0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}mxcsr          0x1fa1   [ IE PE IM DM ZM OM UM PM ]

6、rdi/edi是第一個參數， rsi/esi是第二個參數，貼出info all-register命令所顯示函數kslwtbctx()的兩個參數，如下
rsi            0x2acf2e 2805550                                    ----第二個參數
rdi            0x7fff1c577028   140733668880424    ----第一個參數

(gdb) x/32 0x7fff1c5770280x7fff1c577028: 0x00007a59      0x00000000      0x1c577110      0x00007fff0x7fff1c577038: 0x01b5e250      0x00000000      0x00000000      0x000000000x7fff1c577048: 0x00000000      0x00000000      0x00000000      0x000000010x7fff1c577058: 0x00000000      0x00000000      0x00000000      0x000000000x7fff1c577068: 0x00000000      0x00000000      0x00000000      0x000000000x7fff1c577078: 0x00000000      0x00000000      0x00000001      0x000000000x7fff1c577088: 0x0a12110c      0x00000000      0x0000008f      0x000119740x7fff1c577098: 0x7fffffff      0x00000000      0x00011263      0x00000000(gdb) 

sys@OCM> select  name from v$event_name where event#=143;NAME----------------------------------------------------------------log file sync

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