LSB.os/gentuts/syslog_L problems with mmaped() stdio

[Matt Wilson <msw@redhat.com>]

Newer versions of glibc use mmaped() backing for FILE* buffering.  the
syslog_L tests use stdio to read the log files.  syslogd is writing to
the files, but I don't think that a process that has it mmapped() will
see the writes as soon as they are available.

Could we try turning off buffering on those streams?

setvbuf(fp, NULL, _IONBF, 0)

(same for openlog)

Cheers,

Matt


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