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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[-- Attachment #1 --] > 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. FWIW, ever since a dovecot installation of mine was moved onto ZFS one gets sporadic 'internel errors' from dovecot. Dovecot logs that index files are 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 (mmap_disable = 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 follow-up, but it's been long enough that I believe the problem to be gone. -- / 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 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQBHwVqUDNor2+l1i30RAiwVAJ9ZdinVw5QSkIlY7F1hihnchjisEQCcCXgj bzaUUOPrbhQDObzWz6tL/Dw= =kOf+ -----END PGP SIGNATURE-----help
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