From: Bobo Du Date: Wed, 4 Jul 2018 03:55:51 +0000 (-0400) Subject: util:Fix with process number and pid file do not match X-Git-Tag: v4.6.0-rc1~319 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6cfa0cde08e446a7af6981f21c6226e03d74ce3;p=thirdparty%2Flibvirt.git util:Fix with process number and pid file do not match the libvirtd pid file is not match the os process pid number which is smaller than before. this would be exist if the libvirtd process coredump or the os process was killed which the next pid number is smaller. you can be also edit the pid file to write the longer number than before,then restart the libvirtd service. Signed-off-by: Bobo Du --- diff --git a/src/util/virpidfile.c b/src/util/virpidfile.c index 58ab29f77f..1a85d438a7 100644 --- a/src/util/virpidfile.c +++ b/src/util/virpidfile.c @@ -446,6 +446,14 @@ int virPidFileAcquirePath(const char *path, snprintf(pidstr, sizeof(pidstr), "%lld", (long long) pid); + if (ftruncate(fd, 0) < 0) { + virReportSystemError(errno, + _("Failed to truncate pid file '%s'"), + path); + VIR_FORCE_CLOSE(fd); + return -1; + } + if (safewrite(fd, pidstr, strlen(pidstr)) < 0) { virReportSystemError(errno, _("Failed to write to pid file '%s'"),