dovecot and broken uidlist

Maciej Milaszewski IQ PL
2021-01-16T22:14:46Z

Hi
Any idea some one ?

Dnia 13 stycznia 2021 15:56:18 CET, Maciej Milaszewski <maciej.milaszewski at
iq.pl> napisa?(a):
>Hi
>I have been trying resolve my problem with dovecot for a few days and I
>dont have idea....
>
>My environment is: dovecot director+5 dovecot guest
>
>dovecot-2.2.36.4 from source
>Linux 3.16.0-11-amd64
>storage via nfs (NetApp)
>
>all works fine but when I update OS from debian 8 (kernel 3.16.x) to
>debian 9 (kernel 4.9.x ) sometimes I get random in logs:
>Broken dovecot-uidlist
>
>examle:
>Error: Broken file
>/vmail2/po/pollygraf.xxx_pg_pollygraf/Maildir/dovecot-uidlist line 88:
>Invalid data:
>
>(for random users - sometimes 10 error in day per node, some times
>more)
>
>File looks ok
>
>But if I change kernel to 3.16.x problem with "Broken file
>dovecot-uidlist"? - not exists
>if turn to 4.9 or 5.x - problem exists
>
>I have storage via nfs with opions:
>rw,sec=sys,noexec,noatime,tcp,hard,rsize=65536,wsize=65536,intr,nordirplus,nfsvers=3,tcp,actimeo=120
>I tested with "nocto" or without "nocto" - nothing
changes ......
>
>nfs options in node:
>mmap_disable = yes
>mail_fsync = always
>
>I bet the configuration is correct and I wonder why the problem occurs
>with other kernels
>3.x.x - ok
>4.x - not ok
>
>I check and user who have problem did not connect to another node in
>this time
>
>I dont have idea why problem exists on the kernel 4.x but not in 3.x

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