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| author | Jerry Jelinek <jerry.jelinek@joyent.com> | 2017-12-19 17:13:41 +0000 |
|---|---|---|
| committer | Jerry Jelinek <jerry.jelinek@joyent.com> | 2017-12-19 18:09:03 +0000 |
| commit | 544f34505a03cd85e0b4d03c9b3d3add73c025ed (patch) | |
| tree | 41e8348e29fd92883b8ecd85dbc05fd8479e1b40 | |
| parent | b036e0fd770de1dd266db82dad196891746e92e1 (diff) | |
| download | illumos-joyent-release-20171221.tar.gz | |
OS-6521 zoneadmd loses stdio.log messages when init process does 0-byte write to stdout/stderrrelease-20171221
Reviewed by: Dan McDonald <danmcd@joyent.com>
Reviewed by: Jason King <jason.king@joyent.com>
Approved by: Dan McDonald <danmcd@joyent.com>
| -rw-r--r-- | usr/src/cmd/zoneadmd/zfd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/usr/src/cmd/zoneadmd/zfd.c b/usr/src/cmd/zoneadmd/zfd.c index 00278cd583..88501942e9 100644 --- a/usr/src/cmd/zoneadmd/zfd.c +++ b/usr/src/cmd/zoneadmd/zfd.c @@ -22,7 +22,7 @@ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. - * Copyright 2016 Joyent, Inc. All rights reserved. + * Copyright 2017 Joyent, Inc. */ /* @@ -934,7 +934,8 @@ do_zfd_io(int gzctlfd, int gzservfd, int gzerrfd, int stdinfd, int stdoutfd, (POLLIN | POLLRDNORM | POLLRDBAND | POLLPRI)) { errno = 0; cc = read(stdoutfd, ibuf, BUFSIZ); - if (cc <= 0 && (errno != EINTR) && + /* zfd is a stream, so ignore 0 length read */ + if (cc < 0 && (errno != EINTR) && (errno != EAGAIN)) break; if (cc > 0) { @@ -962,7 +963,8 @@ do_zfd_io(int gzctlfd, int gzservfd, int gzerrfd, int stdinfd, int stdoutfd, (POLLIN | POLLRDNORM | POLLRDBAND | POLLPRI)) { errno = 0; cc = read(stderrfd, ibuf, BUFSIZ); - if (cc <= 0 && (errno != EINTR) && + /* zfd is a stream, so ignore 0 length read */ + if (cc < 0 && (errno != EINTR) && (errno != EAGAIN)) break; if (cc > 0) { |