Excerpts from Ravi Pinjala's message of 2010-11-14 12:31:35 -0500:
> I got the following crash on one of my Ceph nodes this morning. I
> don't know how to reproduce it yet; I was just wondering if it was a
> known issue. This is with the latest kernel for Ubuntu 10.10.
>
> Nov 13 19:21:21 alpha kernel: [19432.396679] ------------[ cut here
> ]------------
> Nov 13 19:21:22 alpha kernel: [19432.396732] WARNING: at
> /build/buildd/linux-2.6.35/fs/btrfs/extent-tree.c:5322
This warning should have been followed by a printk:
WARN_ON(1);
printk(KERN_INFO"block_rsv size %llu reserved %llu freed %llu %llu\n",
block_rsv->size, block_rsv->reserved,
block_rsv->freed[0], block_rsv->freed[1]);
return ERR_PTR(-ENOSPC);
Do you have the printk?
Josef did some work here, so we have a number of related fixes in the
current git tree.
-chris
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