bin/111146: fsck fails on 6Tfilesystem
Dan D Niles
dan at more.net
Mon Apr 16 19:10:07 UTC 2007
The following reply was made to PR bin/111146; it has been noted by GNATS.
From: Dan D Niles <dan at more.net>
To: bug-followup at FreeBSD.org
Cc: Harrison Grundy <astrodog at gmail.com>, Jan Srzednicki <w at wrzask.pl>
Subject: Re: bin/111146: fsck fails on 6Tfilesystem
Date: Mon, 16 Apr 2007 14:08:57 -0500
I attached the failed raid device to a newer server with 8G of RAM. I
booted to an amd64 kernel, and set datasize limit to 7G.
Resource limits (current):
cputime infinity secs
filesize infinity kB
datasize 7340032 kB
stacksize-cur 8192 kB
coredumpsize infinity kB
memoryuse-cur 8093236 kB
memorylocked-cur 1299644 kB
sbsize infinity bytes
vmemoryuse infinity kB
Now when I run fsck I get:
** Last Mounted on /LSO
** Phase 1 - Check Blocks and Sizes
fsck_ffs: bad inode number 53321728 to nextinode
My theory is that some bits got flipped in the meta-data and
cg_initediblk is getting a bad value. The value of 1,572,191,256 that
it returns just before it fails is greater than the total number of
inodes, which is around 784,218,256.
It is distressing that some bits in the meta-data could get flipped
during normal usage resulting in an unusable filesystem.
I have 19 hours before I need to reformat the array and put it back into
production. Is there anything else I should try before then?
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