http://wiki.jackslab.org/index.php?action=history&feed=atom&title=%E6%8D%89%E8%99%AB%E6%97%A5%E8%AE%B0_0010%3A_LTP_call_trace_on_RMI_XLR
捉虫日记 0010: LTP call trace on RMI XLR - 版本历史
2026-09-11T06:02:36Z
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Comcat：/* Analysis */
2025-12-04T03:34:20Z
<p><span dir="auto"><span class="autocomment">Analysis</span></span></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">←上一版本</td>
<td colspan='2' style="background-color: white; color:black;">2025年12月4日 (四) 03:34的版本</td>
</tr><tr><td colspan="2" class="diff-lineno">第363行：</td>
<td colspan="2" class="diff-lineno">第363行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----------------------</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----------------------</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"><br><br></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Reference ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[GNU/Linux 内核移植捉虫笔记 (Linux Kernel Debug Notes)]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><br><br></del></div></td><td colspan="2"> </td></tr>
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Comcat
http://wiki.jackslab.org/index.php?title=%E6%8D%89%E8%99%AB%E6%97%A5%E8%AE%B0_0010:_LTP_call_trace_on_RMI_XLR&diff=2303&oldid=prev
Comcat：/* Phenomenon */
2014-05-19T09:10:11Z
<p><span dir="auto"><span class="autocomment">Phenomenon</span></span></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">←上一版本</td>
<td colspan='2' style="background-color: white; color:black;">2014年5月19日 (一) 09:10的版本</td>
</tr><tr><td colspan="2" class="diff-lineno">第262行：</td>
<td colspan="2" class="diff-lineno">第262行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0240102d 40016000 30420001 3421001f</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0240102d 40016000 30420001 3421001f</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div></pre></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div></pre></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"><br><br></ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Analysis ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Analysis ==</div></td></tr>
</table>
Comcat
http://wiki.jackslab.org/index.php?title=%E6%8D%89%E8%99%AB%E6%97%A5%E8%AE%B0_0010:_LTP_call_trace_on_RMI_XLR&diff=2302&oldid=prev
2014年5月19日 (一) 09:09 Comcat
2014-05-19T09:09:52Z
<p></p>
<table class='diff diff-contentalign-left'>
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<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">←上一版本</td>
<td colspan='2' style="background-color: white; color:black;">2014年5月19日 (一) 09:09的版本</td>
</tr><tr><td colspan="2" class="diff-lineno">第6行：</td>
<td colspan="2" class="diff-lineno">第6行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Linux 2.6.27-rc9</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Linux 2.6.27-rc9</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>产品内核版本从 2.6.27.8 升级到 2.6.27.14 后，运行 LTP，内核拼命地打印 call trace:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>产品内核版本从 2.6.27.8 升级到 2.6.27.14 后，运行 LTP，内核拼命地打印 call trace:</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><pre></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><pre></div></td></tr>
</table>
Comcat
http://wiki.jackslab.org/index.php?title=%E6%8D%89%E8%99%AB%E6%97%A5%E8%AE%B0_0010:_LTP_call_trace_on_RMI_XLR&diff=2301&oldid=prev
Comcat：以“== Phenomenon == 环境： * RMI XLR732 (8 core, 32 threads) * Linux 2.6.27-rc9 产品内核版本从 2.6.27.8 升级到 2.6.27.14 后，运行 LTP，内核拼...”为内容创建页面
2014-05-19T09:09:44Z
<p>以“== Phenomenon == 环境： * RMI XLR732 (8 core, 32 threads) * Linux 2.6.27-rc9 产品内核版本从 2.6.27.8 升级到 2.6.27.14 后，运行 LTP，内核拼...”为内容创建页面</p>
<p><b>新页面</b></p><div>== Phenomenon ==<br />
<br />
环境：<br />
<br />
* RMI XLR732 (8 core, 32 threads)<br />
<br />
* Linux 2.6.27-rc9<br />
<br />
产品内核版本从 2.6.27.8 升级到 2.6.27.14 后，运行 LTP，内核拼命地打印 call trace:<br />
<br />
<pre><br />
<<<test_start>>><br />
tag=clone06 stime=1688<br />
cmdline="clone06"<br />
contacts=""<br />
analysis=exit<br />
initiation_status="ok"<br />
<<<test_output>>><br />
clone06 1 PASS : Test Passed<br />
<<<execution_status>>><br />
duration=0 termination_type=exited termination_id=0 corefile=no<br />
cutime=0 cstime=1<br />
<<<test_end>>><br />
<<<test_start>>><br />
tag=clone07 stime=1688<br />
cmdline="clone07"<br />
contacts=""<br />
analysis=exit<br />
initiation_status="ok"<br />
<<<test_output>>><br />
clone07 1 PASS : Use of return() in child did not cause SIGSEGV<br />
<<<execution_status>>><br />
duration=0 termination_type=exited termination_id=0 corefile=no<br />
cutime=0 cstime=1<br />
<<<test_end>>><br />
<<<test_start>>><br />
tag=close01 stimUnhandled kernel unaligned access[#12]:<br />
e=1688<br />
cmdline=Cpu 17<br />
"close01"<br />
conta$ 0 :cts=""<br />
analysis 0000000000000000=exit<br />
initiatio 000000001000dce0n_status="ok"<br />
< 3c0f00418df97064<<test_output>>> 0000000000000011<br />
close01 1<br />
PASS : file a$ 4 :ppears closed<br />
c 0000000000000008lose01 2 PA 00000000000000d0SS : pipe appe 0000000000000000ars closed<br />
<<<e ffffffffffffffffxecution_status><br />
>><br />
duration=0 t$ 8 :ermination_type= a800000007af4c38exited terminati a8000001254d07e0 0000000000000000 0000000000000418<br />
$12 : 0000000000000038 ffffffff834056e0 0000000000000004 0000000016ee6396<br />
$16 : 3c0f00418df97064 ffffffff838e0d00 000000001000dce1 00000000000000d0<br />
$20 : ffffffff834305f4 0000000000000100 0000000000417384 0000000000000000<br />
$24 : 0000000000000000 ffffffff835d6860 <br />
$28 : a800000123ed4000 a800000123ed7c90 000000000041bb90 ffffffff834cbf54<br />
Hi : 0000000000000000<br />
Lo : 0000000000000f40<br />
epc : ffffffff834cbf7c __kmalloc+0x94/0x198<br />
Tainted: G D<br />
ra : ffffffff834cbf54 __kmalloc+0x6c/0x198<br />
Status: 1000dce2 KX SX UX KERNEL EXL<br />
Cause : 00800010<br />
BadVA : 3c0f00418df97064<br />
PrId : 000c0b04 (RMI Phoenix)<br />
Modules linked in: [last unloaded: hwtimer_test]<br />
Process connect01 (pid: 2343, threadinfo=a800000123ed4000, task=a8000001256d2820, tls=000000002aab02a0)<br />
Stack : 000000001000dce3 00000000000000e0 0000000000000000 a800000125e66b80<br />
a800000125d4bb00 a800000123ed7eb0 000000000041bb90 ffffffff834305f4<br />
a8000001263de690 00000000004065d4 0000000000400000 0000000000000008<br />
0000000000417384 0000000000417000 000000000000000a 0000000000000007<br />
a8000001263de690 000000fffffffe85 a8000001256d2820 0000000000417384<br />
0000000000417000 00000000004065d4 0000000000400000 0000000000000001<br />
a8000001255edd00 a800000125f85170 0000000000000001 0000000000400000<br />
a800000126a5a0c0 a800000125e66bb4 0000000000000005 000000fffffffe85<br />
0000000000000000 ffffffff838b11a0 ffffffff8342f940 fffffffffffffff8<br />
a800000125d4bb00 ffffffff83973268 ffffffff838b6810 0000000000000002<br />
...<br />
Call Trace:<br />
[<ffffffff834cbf7c>] __kmalloc+0x94/0x198<br />
[<ffffffff834305f4>] load_elf_binary+0xcb4/0x1e00<br />
[<ffffffff834d751c>] search_binary_handler+0x294/0x4b8<br />
[<ffffffff8351bb74>] compat_do_execve+0x33c/0x3e0<br />
[<ffffffff8342b17c>] sys32_execve+0x5c/0x88<br />
[<ffffffff8340394c>] handle_sys+0x16c/0x188<br />
<br />
Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0240102d 40016000 30420001 3421001f<br />
<br />
on_id=0 corefile=no<br />
cutime=0 cstime=1<br />
<<<test_end>>><br />
<<<test_start>>><br />
tag=close02 stime=1688<br />
cmdline="close02"<br />
contacts=""<br />
analysis=exit<br />
initiation_status="ok"<br />
<<<test_output>>><br />
close02 1 PASS : call returned EBADF<br />
<<<execUnhandled kernel unaligned access[#13]:<br />
Cpu 17status>>><br />
<br />
duration=1 term$ 0 :ination_type=exi 0000000000000000ted termination_ 000000001000dce0id=0 corefile=no 3c0f00418df97064<br />
cutime=0 cstim 0000000000000011e=2<br />
<<<test_end<br />
>>><br />
<<<test_sta$ 4 :rt>>><br />
tag=close ffffffff838e0d0008 stime=1689<br />
c 00000000000080d0mdline="close08" 000000007fa5c760<br />
contacts=""<br />
a a800000123f23eb0<br />
nalysis=exit<br />
in$ 8 :itiation_status= a800000007af4c38"ok"<br />
<<<test_ou a800000123f9e000tput>>><br />
close08 0000000000000000 1 PASS : 0000000032cff56c<br />
$12 : 00000000000003f3 ffffffffc0000008 ffffffff8342b120 a800000127a40000<br />
$16 : 3c0f00418df97064 000000001000dce1 ffffffff838e0d00 ffffffff8351b878<br />
$20 : 00000000000080d0 0000000000000100 000000007fa5b9fb 000000002aaa92a8<br />
$24 : 0000000000000000 0000000032dd2470 <br />
$28 : a800000123f20000 a800000123f23e10 000000007fa5ba00 ffffffff834cb738<br />
Hi : 0000000000000000<br />
Lo : 0000000000000d40<br />
epc : ffffffff834cb760 kmem_cache_alloc+0x78/0x118<br />
Tainted: G D<br />
ra : ffffffff834cb738 kmem_cache_alloc+0x50/0x118<br />
Status: 1000dce2 KX SX UX KERNEL EXL<br />
Cause : 00800010<br />
BadVA : 3c0f00418df97064<br />
PrId : 000c0b04 (RMI Phoenix)<br />
Modules linked in: [last unloaded: hwtimer_test]<br />
Process pan (pid: 2346, threadinfo=a800000123f20000, task=a8000001256d2ed0, tls=000000002aab02a0)<br />
Stack : 000000002aaa92a8 a800000123f9e000 000000007fa5cf48 a800000123f9e000<br />
000000000041b3a0 000000007fa5c760 a800000123f23eb0 ffffffff8351b878<br />
0000000032e91250 a800000123f9e000 000000007fa5cf48 000000007fa5b9f1<br />
0000000032e91250 0000000000000000 000000000041b3a0 ffffffff8342b17c<br />
000000007fa5b9fb 000000007fa5cf3f 000000007fa5cf48 ffffffff8340394c<br />
0000000000000000 000000001000dce1 0000000000000fab 000000007fa5b9fa<br />
000000007fa5b9f1 000000000041b3a0 000000007fa5c760 000000007fa5cf48<br />
000000000000006e 000000006f742f62 000000003a3a3a3a ffffffff81010100<br />
ffffffffffffffff 000000007fa5b8d0 0000000032cf9c24 fffffffff0000000<br />
000000007fa5cf12 000000007fa5cf12 000000000041b390 0000000032e91250<br />
...<br />
Call Trace:<br />
[<ffffffff834cb760>] kmem_cache_alloc+0x78/0x118<br />
[<ffffffff8351b878>] compat_do_execve+0x40/0x3e0<br />
[<ffffffff8342b17c>] sys32_execve+0x5c/0x88<br />
[<ffffffff8340394c>] handle_sys+0x16c/0x188<br />
<br />
<br />
Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0220102d 40016000 30420001 3421001f<br />
close(tfile_2341) returned 0<br />
<<<execution_status>>><br />
duration=0 termination_type=exited termination_id=0 corefile=no<br />
cutime=0 cstime=1<br />
<<<test_end>>><br />
<<<test_start>>><br />
tag=confstr01 stime=1689<br />
cmdline="confstr01"<br />
contacts=""<br />
analysis=exit<br />
initiation_status="ok"<br />
<<<test_output>>><br />
confstr01 1 PASS : Test Passed<br />
<<<execution_status>>><br />
duration=0 termination_type=exited termination_id=0 corefile=no<br />
cutime=0 cstime=0<br />
<<<test_end>>><br />
......<br />
......<br />
</pre><br />
<br />
<br />
能够看到，主要是两种 Call trace:<br />
<br />
<pre><br />
Unhandled kernel unaligned access[#25]:<br />
Cpu 17<br />
$ 0 : 0000000000000000 000000001000dce0 3c0f00418df97064 0000000000000011<br />
$ 4 : ffffffff838e0d00 00000000000080d0 000000007fa5c760 a80000012240feb0<br />
$ 8 : a800000007af4c38 a800000123f9d000 0000000000000000 0000000032cff56c<br />
$12 : 00000000000003f3 ffffffffc0000008 ffffffff8342b120 a800000127a40000<br />
$16 : 3c0f00418df97064 000000001000dce1 ffffffff838e0d00 ffffffff8351b878<br />
$20 : 00000000000080d0 0000000000000100 000000007fa5b9fb 000000002aaa92a8<br />
$24 : 0000000000000000 0000000032dd2470 <br />
$28 : a80000012240c000 a80000012240fe10 000000007fa5ba00 ffffffff834cb738<br />
Hi : 0000000000000000<br />
Lo : 0000000000000d40<br />
epc : ffffffff834cb760 kmem_cache_alloc+0x78/0x118<br />
Tainted: G D<br />
ra : ffffffff834cb738 kmem_cache_alloc+0x50/0x118<br />
Status: 1000dce2 KX SX UX KERNEL EXL<br />
Cause : 00800010<br />
BadVA : 3c0f00418df97064<br />
PrId : 000c0b04 (RMI Phoenix)<br />
Modules linked in: [last unloaded: hwtimer_test]<br />
Process pan (pid: 2405, threadinfo=a80000012240c000, task=a800000123f2d040, tls=000000002aab02a0)<br />
Stack : 000000007fa5b9fb a800000123f9d000 000000007fa5cf25 a800000123f9d000<br />
000000000041b3a0 000000007fa5c760 a80000012240feb0 ffffffff8351b878<br />
0000000032e91250 a800000123f9d000 000000007fa5cf25 000000007fa5b9f5<br />
0000000032e91250 0000000000000000 000000000041b3a0 ffffffff8342b17c<br />
000000007fa5b9fb 000000007fa5cf20 000000007fa5cf25 ffffffff8340394c<br />
0000000000000000 000000001000dce1 0000000000000fab 000000007fa5b9fa<br />
000000007fa5b9f5 000000000041b3a0 000000007fa5c760 000000007fa5cf25<br />
000000000000006e 000000007efefeff 000000003a3a3a3a ffffffff81010100<br />
ffffffffffffffff 000000007fa5b8d0 0000000032cf9c24 fffffffff0000000<br />
000000007fa5cf12 000000007fa5cf12 000000000041b390 0000000032e91250<br />
...<br />
Call Trace:<br />
[<ffffffff834cb760>] kmem_cache_alloc+0x78/0x118<br />
[<ffffffff8351b878>] compat_do_execve+0x40/0x3e0<br />
[<ffffffff8342b17c>] sys32_execve+0x5c/0x88<br />
[<ffffffff8340394c>] handle_sys+0x16c/0x188<br />
<br />
Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0220102d 40016000 30420001 3421001f<br />
</pre><br />
<br />
<br />
和：<br />
<br />
<pre><br />
Unhandled kernel unaligned access[#29]:<br />
Cpu 17<br />
$ 0 : 0000000000000000 000000001000dce0 3c0f00418df97064 0000000000000011<br />
$ 4 : 0000000000000008 00000000000000d0 0000000000000000 ffffffffffffffff<br />
$ 8 : a800000007af4c38 a8000001254d1500 0000000000000000 0000000000055575<br />
$12 : 0000000000000028 ffffffff834056e8 0000000000000005 000000004b81435b<br />
$16 : 3c0f00418df97064 ffffffff838e0d00 000000001000dce1 00000000000000d0<br />
$20 : ffffffff834305f4 0000000000000100 0000000000024158 0000000055550000<br />
$24 : 0000000000000006 ffffffff835d6860 <br />
$28 : a800000123ed4000 a800000123ed7c90 0000000000029800 ffffffff834cbf54<br />
Hi : 0000000000000000<br />
Lo : 0000000000000f40<br />
epc : ffffffff834cbf7c __kmalloc+0x94/0x198<br />
Tainted: G D<br />
ra : ffffffff834cbf54 __kmalloc+0x6c/0x198<br />
Status: 1000dce2 KX SX UX KERNEL EXL<br />
Cause : 00800010<br />
BadVA : 3c0f00418df97064<br />
PrId : 000c0b04 (RMI Phoenix)<br />
Modules linked in: [last unloaded: hwtimer_test]<br />
Process mail.local (pid: 2458, threadinfo=a800000123ed4000, task=a800000125606450, tls=000000002aad0840)<br />
Stack : 000000001000dce3 00000000000000e0 0000000000000000 a800000125dd6a00<br />
a8000001271b3700 a800000123ed7eb0 0000000055579800 ffffffff834305f4<br />
0000000000020000 000000005556368c 0000000055550000 0000000000000009<br />
0000000055574158 000000005557368c 0000000000000000 ffffffff834056fc<br />
0000000000000000 0000000d00000004 0000000000000000 0000000000024158<br />
000000000002368c 000000000001368c 0000000000000000 000000000000001b<br />
a8000001262a3600 a800000125dd7130 0000000000000001 0000000055550000<br />
a800000125104600 a800000125dd6a34 0000000000000003 a800000123ed7dd0<br />
0000000000000000 ffffffff838b11a0 ffffffff8342f940 fffffffffffffff8<br />
a8000001271b3700 ffffffff83973268 ffffffff838b6810 0000000000000002<br />
...<br />
Call Trace:<br />
[<ffffffff834cbf7c>] __kmalloc+0x94/0x198<br />
[<ffffffff834305f4>] load_elf_binary+0xcb4/0x1e00<br />
[<ffffffff834d751c>] search_binary_handler+0x294/0x4b8<br />
[<ffffffff8351bb74>] compat_do_execve+0x33c/0x3e0<br />
[<ffffffff8342b17c>] sys32_execve+0x5c/0x88<br />
[<ffffffff8340394c>] handle_sys+0x16c/0x188<br />
<br />
Code: 9d020014 000210f8 0202102d <dc430000> fd030000 0240102d 40016000 30420001 3421001f<br />
</pre><br />
<br />
== Analysis ==<br />
<br />
可以看到每次引起 Call trace 的 BadVaddr 皆为 3c0f00418df97064，引起异常的代码段皆类似，且引起异常的指令皆为 0xdc430000 :<br />
<br />
<pre><br />
<kmem_cache_alloc>:<br />
......<br />
ffffffff834cb754: 9d020014 lwu v0,20(a4)<br />
ffffffff834cb758: 000210f8 dsll v0,v0,0x3<br />
ffffffff834cb75c: 0202102d daddu v0,s0,v0<br />
ffffffff834cb760: dc430000 ld v1,0(v0)<br />
ffffffff834cb764: fd030000 sd v1,0(a4)<br />
ffffffff834cb768: 0220102d move v0,s1<br />
ffffffff834cb76c: 40016000 mfc0 at,c0_status<br />
ffffffff834cb770: 30420001 andi v0,v0,0x1<br />
ffffffff834cb774: 3421001f ori at,at,0x1f<br />
......<br />
</pre><br />
<br />
<br />
2009.2.12 23:43<br />
------------------------<br />
<br />
MD，一跑 LTP 怎么多 Call trace， 都快崩溃了。现在还好，接受 Tiejun 的建议，把 slub 换成了 slab，在 ATX-II 没出现 Call trace，也许是没加载模块的原因。在 ATX-I 上先 insmod hwtimer_test.ko; rmmod hwtimer_test.ko 后，就出现了：<br />
<br />
<pre><br />
......<br />
......<br />
<<<test_start>>><br />
tag=waitpid10 stime=1464<br />
cmdline="waitpid10 5"<br />
contacts=""<br />
analysis=exit<br />
initiation_status="ok"<br />
<<<test_output>>><br />
waitpid10 1 *******PASS : Test P****SSED<br />
<<<execut**********************************<br />
cpu_31 received a bus/cache error<br />
*********************************************<br />
Bridge: Phys Addr = 0x0128000000, Device_AERR = 0x00000008<br />
Bridge: The devices reporting AERR are:<br />
cpu 3<br />
CPU: (XLR specific) Cache Error log = 0x000000f93e7d7108, Phy Addr = 0x01f27cfae0<br />
CPU: epc = 0x32dd2480, errorepc = 0xffffffff834c7c8c, cacheerr = 0x00000000<br />
Can not handle bus/cache error - Halting cpu<br />
BUG: soft lockup - CPU#0 stuck for 61s! [events/0:99]<br />
Modules linked in: binfmt_misc ipv6<br />
Cpu 0<br />
$ 0 : 0000000000000000 000000001000dce0 0000000000000003 0000000000000020<br />
$ 4 : 0000000000000020 0000000000000002 0000000000000020 a80000012715bdc0<br />
$ 8 : 0000000000000000 0000000000000000 0000000000000000 0000000000000001<br />
$12 : a80000012715bfe0 000000000000dc00 0000000000000000 ffffffff83884000<br />
$16 : ffffffff838d0000 a800000125584ec0 0000000000000001 0000000000000000<br />
$20 : ffffffff83494690 0000000000000000 fffffffffffffffc ffffffffefffffff<br />
$24 : 0000000000000000 ffffffff83419d88<br />
$28 : a800000127158000 a80000012715bdf0 ffffffff83947240 ffffffff8347f010<br />
Hi : 0000000000000000<br />
Lo : 0000000000000000<br />
epc : ffffffff8347ee50 smp_call_function_mask+0x170/0x2f0<br />
Not tainted<br />
ra : ffffffff8347f010 smp_call_function+0x40/0x88<br />
Status: 1000dce3 KX SX UX KERNEL EXL IE<br />
Cause : 00808000<br />
PrId : 000c0b04 (RMI Phoenix)<br />
BUG: soft lockup - CPU#6 stuck for 61s! [syslogd:6427]<br />
Modules linked in: binfmt_misc ipv6<br />
Cpu 6<br />
$ 0 : 0000000000000000 000000001000dce0 0000000000000003 0000000000000020<br />
$ 4 : 0000000000000020 0000000000000002 0000000000000020 a80000012351fbf0<br />
$ 8 : 0000000000000000 ffffffff8342c8f8 0000000000000020 0000000000000000<br />
$12 : 0000000000000000 000000000000dc00 0000000000000000 a80000012796c000<br />
$16 : ffffffff838d0000 a800000125467260 0000000000000001 0000000000000000<br />
$20 : ffffffff83434398 000000007ff3f450 0000000055551dc8 0000000000000001<br />
$24 : 0000000000000020 ffffffff83419d88<br />
$28 : a80000012351c000 a80000012351fc20 0000000055569040 ffffffff8347f010<br />
Hi : 0000000000000000<br />
Lo : 0000000000000000<br />
epc : ffffffff8347ee50 smp_call_function_mask+0x170/0x2f0<br />
Not tainted<br />
ra : ffffffff8347f010 smp_call_function+0x40/0x88<br />
Status: 1000dce3 KX SX UX KERNEL EXL IE<br />
Cause : 00808000<br />
PrId : 000c0b04 (RMI Phoenix)<br />
<<soft lockup here>><br />
</pre><br />
<br />
<br />
2009.2.13 1:05<br />
------------------------<br />
<br />
<br />
换用 slab 后，ATX-II 上 insmod ./hwtimer_test.ko; rmmod ./hwtimer_test.ko; ./runltplite.sh 跑了一夜，似乎没什么问题。<br />
<br />
ATX-I 上直接 ./runltplite.sh 似乎也没什么问题。<br />
<br />
2009.2.13 9:43<br />
-----------------------<br />
<br />
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<br><br></div>
Comcat