Date: Sun, 24 Feb 2008 12:52:43 +0100 From: Peter Schuller <peter.schuller@infidyne.com> To: freebsd-current@freebsd.org Cc: Richard Todd <rmtodd@ichotolot.servalan.com> Subject: Re: ZFS: data sometimes not getting correctly flushed to disk (possible mmap/write issue)? Message-ID: <200802241252.52176.peter.schuller@infidyne.com> In-Reply-To: <20080215231507.EAB7D641@mx2.synetsystems.com> References: <20080215231507.EAB7D641@mx2.synetsystems.com>
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--nextPart1690081.MCEkRg8Dft Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline > 3) ktracing gen2.py shows that the py-mutagen library seems to do both > write()s and read/write mmap()s to the file to update the file. =46WIW, ever since a dovecot installation of mine was moved onto ZFS one ge= ts=20 sporadic 'internel errors' from dovecot. Dovecot logs that index files are= =20 corrupt, and marked broken. Recovery involves re-selecting the IMAP mailbox. In response to your post, I recently turned OFF use of mmap in dovecot=20 (mmap_disable =3D yes), and the problem seems to have gone away immediately. If it should show up again in spite of mmap being disabled I will post a=20 follow-up, but it's been long enough that I believe the problem to be gone. =2D-=20 / Peter Schuller PGP userID: 0xE9758B7D or 'Peter Schuller <peter.schuller@infidyne.com>' Key retrieval: Send an E-Mail to getpgpkey@scode.org E-Mail: peter.schuller@infidyne.com Web: http://www.scode.org --nextPart1690081.MCEkRg8Dft Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQBHwVqUDNor2+l1i30RAiwVAJ9ZdinVw5QSkIlY7F1hihnchjisEQCcCXgj bzaUUOPrbhQDObzWz6tL/Dw= =kOf+ -----END PGP SIGNATURE----- --nextPart1690081.MCEkRg8Dft--
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