Date: Wed, 1 Oct 2014 16:18:41 +0000 (UTC) From: Glen Barber <gjb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r272372 - stable/10/bin/rm Message-ID: <201410011618.s91GIfR5071251@svn.freebsd.org>
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Author: gjb Date: Wed Oct 1 16:18:40 2014 New Revision: 272372 URL: https://svnweb.freebsd.org/changeset/base/272372 Log: MFC r268376 (imp): rm -rf can fail sometimes with an error from fts_read. Make it honor fflag to ignore fts_read errors, but stop deleting from that directory because no further progress can be made. When building a kernel with a high -j value on a high core count machine, during the cleanobj phase we can wind up doing multiple rm -rf at the same time for modules that have subdirectories. This exposed this race (sometimes) as fts_read can return an error if the directory is removed by another rm -rf. Since the intent of the -f flag was to ignore errors, even if this was a bug in fts_read, we should ignore the error like we've been instructed to do. Approved by: re (kib) Sponsored by: The FreeBSD Foundation Modified: stable/10/bin/rm/rm.c Directory Properties: stable/10/ (props changed) Modified: stable/10/bin/rm/rm.c ============================================================================== --- stable/10/bin/rm/rm.c Wed Oct 1 16:16:01 2014 (r272371) +++ stable/10/bin/rm/rm.c Wed Oct 1 16:18:40 2014 (r272372) @@ -335,7 +335,7 @@ err: warn("%s", p->fts_path); eval = 1; } - if (errno) + if (!fflag && errno) err(1, "fts_read"); fts_close(fts); }
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