Date: Wed, 23 Nov 2011 23:00:26 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: freebsd-fs@FreeBSD.org Subject: Does UFS2 send BIO_FLUSH to GEOM when update metadata (with softupdates)? Message-ID: <1957615267.20111123230026@serebryakov.spb.ru>
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Hello, Freebsd-fs. Does UFS2 with softupdates (without journal) issues BIO_FLUSH to GEOM layer when it need to ensure consistency on on-disk metadata? Does UFS2 with SU+J issues this command? geom_raid5 respects this command, but when write log is enabled, it produces tons of "Unexpected softupate inconsistency" errors on crash. It seems, that there is no BIO_FLUSH and writes, which should be synchronous (metadata updates) isn't :( --=20 // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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