Date: Wed, 14 Oct 2015 10:21:21 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r289304 - vendor-sys/illumos/dist/uts/common/fs/zfs Message-ID: <201510141021.t9EALLCh005601@repo.freebsd.org>
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Author: mav Date: Wed Oct 14 10:21:21 2015 New Revision: 289304 URL: https://svnweb.freebsd.org/changeset/base/289304 Log: 6293 ztest failure: error == 28 (0xc == 0x1c) in ztest_tx_assign() Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Approved by: Richard Lowe <richlowe@richlowe.net> Author: Matthew Ahrens <mahrens@delphix.com> illumos/illumos-gate@8fe00bfb8790ad51653f67b01d5ac14256cbb404 Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Oct 14 10:01:08 2015 (r289303) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Oct 14 10:21:21 2015 (r289304) @@ -5021,6 +5021,16 @@ arc_init(void) arc_c_max = MAX(allmem * 3 / 4, arc_c_max); /* + * In userland, there's only the memory pressure that we artificially + * create (see arc_available_memory()). Don't let arc_c get too + * small, because it can cause transactions to be larger than + * arc_c, causing arc_tempreserve_space() to fail. + */ +#ifndef _KERNEL + arc_c_min = arc_c_max / 2; +#endif + + /* * Allow the tunables to override our calculations if they are * reasonable (ie. over 64MB) */
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