Re: Bcache causes data lose.

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On Thu, Nov 7, 2013 at 8:22 PM, Kent Overstreet <kmo@xxxxxxxxxxxxx> wrote:
> On Thu, Nov 07, 2013 at 10:39:39AM +0000, Yuxuan Shui wrote:
>> Hi,
>>
>> I'm trying bcache for the past two days. And I observed several data
>> corruptions.
>>
>> This happens with both writeback and writethrough cache. After reboot,
>> I saw my filesystem corrupted. With writeback cache, there's no way to
>> recover it. With writethrough cache, after I detach the backing device
>> from the cache set, I can mount my filesystem again. So I think this
>> is cleanly a bcache bug.
>>
>> I don't know if above information is enough, if you need to anything,
>> I'll do my best to provide
>
> That's not good :/ Can you tell me everything that's in your setup? md/lvm/what
> drivers you're using for your drives/anything else that might be relevant...

I'm running a almost fresh Archlinux installation, first with a 3.11.6
kernel then updated to 3.12.

My SSD drive is Samsung 840EVO 120G. I'm not using md or lvm, just
btrfs on top of bcache.
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