David Greaves wrote:
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This was with 2.6.16.9
There's an nfs export from an xfs on an lvm on a raid5 on some
libata/sata disks.
(cc'ing xfs since I recall rumoured(?) badness in old nfs/xfs/md/lvm
setups and xfs_sendfile is mentioned)
dmesg had:
Bad page state in process 'nfsd'
page:b1602060 flags:0x80000008 mapping:00000000 mapcount:0 count:16777216
Trying to fix it up, but a reboot is needed
Backtrace:
[<b013bda2>] bad_page+0x62/0x90
[<b013c1c8>] prep_new_page+0x78/0x80
Looks like you have a bit flipped in 'count', which was not flipped
when the page was last freed. Probably buggy RAM.
Running memtest overnight might confirm that.
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SUSE Labs, Novell Inc.
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