On Thu, 14 Feb 2013, Chris Murphy wrote:
Yeah he's getting a lot of these, and I don't know what it is:
Feb 14 08:32:30 nerv kernel: [180511.760850] lost page write due to I/O error
on /dev/sdd1
It's not tied to btrfs or libata so I don't think it's the drive itself
reporting the write error.
Actually, it appears it might just be from btrfs:
$ grep -rlI 'lost page write' /usr/local/src/linux-3.7.1/fs
/usr/local/src/linux-3.7.1/fs/btrfs/disk-io.c
/usr/local/src/linux-3.7.1/fs/buffer.c
And at btrfs/disk-io.c:2711 in this 3.7.1 source:
printk_ratelimited_in_rcu(KERN_WARNING "lost page write due to "
"I/O error on %s\n",
rcu_str_deref(device->name));
So it's either from btrfs, or from the buffer cache, and seeing as how it
appears with other btrfs messages, I'd be willing to bet on the former. :)
--
Fredrik Tolf
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