Re: No space left on device (28)

[Stefan Priebe <s.priebe@profihost.ag>]

Hi,

output here:
[  590.546162] returning enospc, space_info 3, size 0 reserved 0, flush 
2, flush_state 7  dumping space info
[  590.548280] space_info 4 has 6439292928 free, is full
[  590.548283] space_info total=25748307968, used=19308916736, pinned=0, 
reserved=32768, may_use=6438354944, readonly=65536
[  590.550147] returning enospc, space_info 3, size 0 reserved 0, flush 
2, flush_state 7  dumping space info
[  590.552264] space_info 4 has 6439284736 free, is full
[  590.552267] space_info total=25748307968, used=19308916736, pinned=0, 
reserved=40960, may_use=6438354944, readonly=65536
[  590.554141] returning enospc, space_info 3, size 0 reserved 0, flush 
2, flush_state 7  dumping space info
[  590.556258] space_info 4 has 6439284736 free, is full
[  590.556261] space_info total=25748307968, used=19308916736, pinned=0, 
reserved=40960, may_use=6438354944, readonly=65536
[  591.145255] returning enospc, space_info 3, size 0 reserved 0, flush 
2, flush_state 7  dumping space info
[  591.147373] space_info 4 has 6439235584 free, is full
[  591.147375] space_info total=25748307968, used=19308916736, pinned=0, 
reserved=90112, may_use=6438354944, readonly=65536
[  595.560257] returning enospc, space_info 3, size 0 reserved 0, flush 
2, flush_state 7  dumping space info
[  595.562390] space_info 4 has 6439120896 free, is full
[  595.562393] space_info total=25748307968, used=19309047808, pinned=0, 
reserved=73728, may_use=6438297600, readonly=65536

Am 25.03.2013 21:14, schrieb Josef Bacik:
> On Fri, Mar 22, 2013 at 02:55:07PM -0600, Stefan Priebe wrote:
>> Hi Jsoef,
>>
>> thanks!
>
> Ok I don't think the thing I just fixed will make any difference for you so
> here's another debug patch, just apply it on top of what I've already sent you
> and re-run and give me the dmesg again.  Thanks,
>
> Josef
>
>
> diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
> index aabaea6..bf6433f 100644
> --- a/fs/btrfs/extent-tree.c
> +++ b/fs/btrfs/extent-tree.c
> @@ -4162,7 +4162,11 @@ out:
>   	}
>   	if (flushing) {
>   		if (ret == -ENOSPC) {
> -			printk(KERN_ERR "returning enospc, dumping space info\n");
> +			spin_lock(&block_rsv->lock);
> +			printk(KERN_ERR "returning enospc, space_info %u, size %Lu reserved %Lu, "
> +			       "flush %d, flush_state %d  dumping space info\n", block_rsv->type,
> +			       block_rsv->size, block_rsv->reserved, flush, flush_state);
> +			spin_unlock(&block_rsv->lock);
>   			dump_space_info(space_info, 0, 0);
>   		}
>
>