[Dovecot] Unexpected behaviour when deleteing a big mailbox

[Timo Sirainen]

On 23.3.2007, at 19.40, Timo Sirainen wrote:

>>>> dovecot: Mar 22 13:35:39 Error: IMAP(dvtest) [18381]: Maildir
>>>> /mnt/mailcache/dvtest/.box1 sync: UID inserted in the middle of  
>>>> mailbox
>>>> (16251 > 6588, file = 1174389173.P6520Q1M362610.ux-2s11-9:2,Fdc)
>>>
>>> Are you using ext3? I just found a bug in it that could cause  
>>> this with
>>> large maildirs.
>>
>> Timo, you (and others) may well consider this off-topic, but would  
>> you
>> mind telling us more about this ext3 bug? I have some very large ext3
>> filesystems (not maildirs) and am concerned.
>
> http://article.gmane.org/gmane.comp.file-systems.ext4/1334

So not a bug after all, just something I had never heard of before.  
This makes my duplicate fixing code pretty difficult to do correctly.  
I guess I'll go remove it completely then, it's not like anyone else  
does it either. :) Then again, if there do exist duplicates, it  
starts giving annoying error messages.

Of course duplicates shouldn't normally happen either, but they do  
with maildir_copy_preserve_filenames=yes and stress testing.. I guess  
I'll leave this fix post-v1.0.
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