It's either that or a check sum problem. Disable metaecc. Not sure which kernel you are running.<div>We had fixed few problems few years ago around this. If your kernel is older, then it could be</div><div>a known issue.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Nov 9, 2012 at 12:50 PM, Marian Serban <span dir="ltr"><<a href="mailto:marian@easic.ro" target="_blank">marian@easic.ro</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Sunil,<br>
<br>
Thank you for answering. Unfortunately, it doesn't seem like it's a hardware problem. There's no way a cable can be loose because it's iSCSI over 1G Ethernet (copper wires) environment. Also I performed "dd if=/dev/.... of=/dev/null" and first 16GB or so are fine. "Dmesg" shows no errors.<br>
<br>
<br>
Also tried with debugfs.ocfs2:<br>
<br>
<br>
[root@ro02xsrv003 ~]# debugfs.ocfs2 /dev/mapper/volgr1-lvol0<br>
debugfs.ocfs2 1.6.3<br>
debugfs: ls<br>
ls: Bad magic number in inode '.'<br>
debugfs: slotmap<br>
slotmap: Bad magic number in inode while reading slotmap system file<br>
debugfs: stats<br>
Revision: 0.90<br>
Mount Count: 0 Max Mount Count: 20<br>
State: 0 Errors: 0<br>
Check Interval: 0 Last Check: Fri Nov 9 14:35:53 2012<br>
Creator OS: 0<br>
Feature Compat: 3 backup-super strict-journal-super<br>
Feature Incompat: 16208 sparse extended-slotmap inline-data metaecc xattr indexed-dirs refcount discontig-bg<br>
Tunefs Incomplete: 0<br>
Feature RO compat: 7 unwritten usrquota grpquota<br>
Root Blknum: 129 System Dir Blknum: 130<br>
First Cluster Group Blknum: 64<br>
Block Size Bits: 12 Cluster Size Bits: 18<br>
Max Node Slots: 10<br>
Extended Attributes Inline Size: 256<br>
Label: SAN<br>
UUID: B4CF8D4667AF43118F3324567B90A9<u></u>87<br>
Hash: 3698209293 (0xdc6e320d)<br>
DX Seed[0]: 0x9f4a2bb7<br>
DX Seed[1]: 0x501ddac0<br>
DX Seed[2]: 0x6034bfe8<br>
Cluster stack: classic o2cb<br>
Inode: 2 Mode: 00 Generation: 1093568923 (0x412e899b)<br>
FS Generation: 1093568923 (0x412e899b)<br>
CRC32: 46f2d360 ECC: 04d4<br>
Type: Unknown Attr: 0x0 Flags: Valid System Superblock<br>
Dynamic Features: (0x0)<br>
User: 0 (root) Group: 0 (root) Size: 0<br>
Links: 0 Clusters: 45340448<br>
ctime: 0x4ee67f67 -- Tue Dec 13 00:25:43 2011<br>
atime: 0x0 -- Thu Jan 1 02:00:00 1970<br>
mtime: 0x4ee67f67 -- Tue Dec 13 00:25:43 2011<br>
dtime: 0x0 -- Thu Jan 1 02:00:00 1970<br>
ctime_nsec: 0x00000000 -- 0<br>
atime_nsec: 0x00000000 -- 0<br>
mtime_nsec: 0x00000000 -- 0<br>
Refcount Block: 0<br>
Last Extblk: 0 Orphan Slot: 0<br>
Sub Alloc Slot: Global Sub Alloc Bit: 65535<span class="HOEnZb"><font color="#888888"><br>
<br>
<br>
<br>
<br>
Marian<br>
<br>
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