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From: Eric Sandeen <sandeen@sandeen.net>
To: Timofey Titovets <nefelim4ag@gmail.com>
Cc: xfs@oss.sgi.com
Subject: Re: Q: xfs_db: invalid numrecs (*) in bmapbtd block
Date: Sun, 28 Jun 2015 20:17:53 -0500	[thread overview]
Message-ID: <55909CC1.2020301@sandeen.net> (raw)
In-Reply-To: <CAGqmi75V-DWbJR0LPOqwhg3s501G_kSDpcPjbPi6nuGWOJNrKA@mail.gmail.com>

On 6/28/15 5:29 PM, Timofey Titovets wrote:
> 2015-06-29 1:12 GMT+03:00 Eric Sandeen <sandeen@sandeen.net>:

...

>> You're likely just seeing that inconsitency because you're reading
>> it while it's mounted; possibly even while it's being modified.
>>
>> -Eric
> 
> I already thinked about this case, and it seems incredible.
> 1. i can get consistent or very close to consistent fs, by run 'sync'
> 2. Okay, supposing you are right,
> then i must get different errors over time, because fs will change own
> state over time (also after every sync call).
> But its don't happen, i get same errors over long period of time (1
> day+, i think on busy FS server, its enoug to think what data on disk
> has changed)
> Also, i have several others server, and on it i didn't see this
> problem (over 2-3 month).
> 
> 
> Then I can conclude this is errors in FS, only what matter to me now,
> this type of errors can damage my data and i must move virtual
> machines from it ASAP, or i can continue working and this is just
> "artefact".
> 
> Fix me if i'm wrong.

Your other option is to unmount and run xfs_repair, and find out if
you actually have on-disk corruption.  It's the only way to know
for sure (or: freeze the fs, snapshot the device, and run repair on that)

-Eric

-Eric

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  reply	other threads:[~2015-06-29  1:18 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-28 18:44 Q: xfs_db: invalid numrecs (*) in bmapbtd block Timofey Titovets
2015-06-28 22:12 ` Eric Sandeen
2015-06-28 22:29   ` Timofey Titovets
2015-06-29  1:17     ` Eric Sandeen [this message]
2015-06-29  0:24 ` Dave Chinner
2015-06-29  0:48   ` Timofey Titovets

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