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<div class=Section1 style='layout-grid:15.6pt'><pre><font size=3 face=宋体><span
lang=EN-US style='font-size:12.0pt'>Hi all</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>I encounter a "Segment Fault" when mount an ocfs2 partition. </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Steps to duplicate:</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>1.load_ocfs2</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>2.mkfs.ocfs2 -b 4 -L ocfs2 -F -m /ocfs /dev/sdc2</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>3.mount /dev/sdc2 /ocfs -t ocfs2</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Then I get "Segment Fault" with following message produced by dmesg:</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>......</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Unable to handle kernel NULL pointer dereference at virtual address 0000002c</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> printing eip:</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>e0abbc87</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>*pde = 00000000</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Oops: 0000</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>ocfs2 lp parport autofs e100 e1000 floppy sg microcode keybdev mousedev hid </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>input usb-uhci usbcore ext3 jbd qla2300 qla2300_conf aic7xxx sd_mod scsi_mod </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>CPU: 0</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>EIP: 0060:[<e0abbc87>] Not tainted</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>EFLAGS: 00010203</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>EIP is at ocfs_show_all_node_cfgs [ocfs2] 0x2b3 (2.4.22-1.2115.nptl)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>eax: 00000000 ebx: dd932600 ecx: 00000000 edx: dbb64110</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>esi: ddbdb9c0 edi: ddbdb9c0 ebp: df3cc000 esp: dc4efc58</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>ds: 0068 es: 0068 ss: 0068</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Process mount (pid: 5261, stackpage=dc4ef000)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Stack: df3cc000 00000000 df3cc000 e0abaeb0 dd932600 ddbdb9c0 00000000 00000000 </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> dc4ee000 08230001 0000086e 00000000 ddbdb9c0 00000000 00000000 00001000 </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> 0000dc00 00000000 df3cc000 dfc21e80 df3cc000 dfc21f10 df3cc000 e0abb4c5 </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Call Trace: [<e0abaeb0>] ocfs_chk_update_config [ocfs2] 0x134 (0xdc4efc64)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0abb4c5>] ocfs_get_config [ocfs2] 0x5d (0xdc4efcb4)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0ab5ca1>] ocfs_initialize_osb [ocfs2] 0x881 (0xdc4efcd4)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c011d9bf>] __call_console_drivers [kernel] 0x5f (0xdc4efce8)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0ab40d6>] ocfs_mount_volume [ocfs2] 0x232 (0xdc4efdb4)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0ab2c5c>] __ocfs_read_super [ocfs2] 0xc4 (0xdc4efe64)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0ab2e33>] ocfs_read_super [ocfs2] 0x23 (0xdc4efe94)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c014b183>] get_sb_bdev [kernel] 0x1a3 (0xdc4efeb4)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0acb670>] ocfs_fs_type [ocfs2] 0x0 (0xdc4efef8)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c014b4f1>] do_kern_mount [kernel] 0x121 (0xdc4eff00)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<e0acb670>] ocfs_fs_type [ocfs2] 0x0 (0xdc4eff04)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c015ec53>] do_add_mount [kernel] 0x93 (0xdc4eff24)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c015ef80>] do_mount [kernel] 0x160 (0xdc4eff44)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c015edc9>] copy_mount_options [kernel] 0x79 (0xdc4eff74)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c015f3a1>] sys_mount [kernel] 0xb1 (0xdc4eff94)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>[<c0109b9f>] system_call [kernel] 0x33 (0xdc4effc0)</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>.......</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Any ideas for it?</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'>Thanx.</span></font></pre><pre><font
size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'> </span></font></pre>
<p class=MsoNormal><b><i><font size=2 color="#333399" face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt;color:#333399;font-weight:bold;font-style:
italic'>Aaron</span></font></i></b></p>
<p class=MsoNormal><font size=2 color="#333399" face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:#333399'>Intel </span></font><font
size=2 face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial'><font color="#333399"><span style='color:#333399'>China</span></font><font color="#333399"><span
style='color:#333399'> Software Lab</span></font></span></font></p>
<p class=MsoNormal><font size=2 color="#333399" face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:#333399'>Tel:
8621-52574545 Ext.1587</span></font></p>
<p class=MsoNormal><font size=2 color="#333399" face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:#333399'>E_mail:<a
href="mailto:yukun.chen@intel.com">yukun.chen@intel.com</a></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US> </span></font></p>
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