<html><body bgcolor="#FFFFFF"><div>Please file a bugzilla and _attach_ this oops trace. Also mention all the version numbers.</div><div><br><br>On Jun 17, 2009, at 2:30 AM, "McDonald, Stuart" <<a href="mailto:smcdonald@uk.sopragroup.com">smcdonald@uk.sopragroup.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
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<p><span lang="en-gb"><font size="2" face="Arial">Hi</font></span>
</p>
<p><span lang="en-gb"><font size="2" face="Arial">We have a two-node RAC cluster, which uses ASM for the database storage, but is using OCFS2 to mount a couple of file systems for a) the RMAN backups, and b) Oracle Data files, i.e. files read from or written to DBA Directories.</font></span></p>
<p><span lang="en-gb"><font size="2" face="Arial">One of the servers in the cluster crashed, and checks revealed the following error messages:</font></span>
</p>
<p><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000bc4</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: printing eip:</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: f9125eb2</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: *pde = 09ac4001</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Oops: 0002 [#1]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: SMP</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Modules linked in: hangcheck_timer parport_pc lp parport oracleasm(U) autofs4 i2c_dev i2c_core ocfs$</font></span></p>
<p><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: CPU: 3</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: EIP: 0060:[<f9125eb2>] Tainted: P VLI</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: EFLAGS: 00010246 (2.6.9-42.ELsmp)</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: EIP is at ocfs2_free_suballoc_bits+0x4ca/0x766 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: eax: 00000000 ebx: 00000000 ecx: 0000000b edx: 00000000</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: esi: 00005c28 edi: 000000ff ebp: d828b000 esp: d643cdb0</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: ds: 007b es: 007b ss: 0068</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Process rm (pid: 27647, threadinfo=d643c000 task=d520f6b0)</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Stack: 0000000b 00000000 00000000 00000001 f19e9d48 f2fa80c0 f2fa8000 d721489c</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: f301a728 f6e2fa40 f19e9d48 f3dd5880 0000000c 00000000 f3dd5880 f912646f</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: 00005b29 0d478a00 00000000 00000100 0d47e529 f6d60c00 d721489c f301a728</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Call Trace:</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f912646f>] ocfs2_free_clusters+0x2ad/0x37a [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f90f872d>] ocfs2_replay_truncate_records+0x2e4/0x3c7 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f90f8b80>] __ocfs2_flush_truncate_log+0x370/0x45b [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f90fad8d>] ocfs2_commit_truncate+0x508/0x8a3 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f910f347>] ocfs2_truncate_for_delete+0x255/0x312 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f910fb54>] ocfs2_wipe_inode+0x1aa/0x2ee [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f9110555>] ocfs2_delete_inode+0x2d6/0x450 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f911027f>] ocfs2_delete_inode+0x0/0x450 [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c0171954>] generic_delete_inode+0xa2/0x104</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<f9111407>] ocfs2_drop_inode+0xe6/0x12a [ocfs2]</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c0171b30>] iput+0x5f/0x61</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c0168e46>] sys_unlink+0xd7/0x132</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c015bcbc>] fget+0x3b/0x42</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c016add6>] sys_ioctl+0x227/0x269</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c016ae0c>] sys_ioctl+0x25d/0x269</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: [<c02d4703>] syscall_call+0x7/0xb</font></span>
<br><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: Code: 00 8b 44 24 20 89 14 24 89 4c 24 04 8b 88 d8 fd ff ff 8b 98 dc fd ff ff 8b 54 24 04 8b 04 24 $</font></span></p>
<p><span lang="en-us"><font face="Times New Roman">Jun 5 17:00:27 cadbbe2 kernel: <0>Fatal exception: panic in 5 seconds</font></span>
</p>
<p><span lang="en-us"><font size="2" face="Arial">The server was manually rebooted, and the filesystems mounted automatically. No issues have been experienced since this date.</font></span></p>
<p><span lang="en-us"><font size="2" face="Arial">The only thing that would have been running at this time was an RMAN deletion of old backups from disk.</font></span>
</p>
<p><span lang="en-us"><font size="2" face="Arial">Has anybody seen this issue before, or is there any advice on how to troubleshoot this. </font></span>
</p>
<p><span lang="en-us"><font size="2" face="Arial">This is a production system, so I am limited in the tests that I can actually carry out.</font></span>
</p>
<p><span lang="en-us"><font size="2" face="Arial">Thanks in advance</font></span>
<br><span lang="en-us"><font size="2" face="Arial">Stuart</font></span>
</p>
<br>
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