varnishncsa ignoring SIGHUP?

Dag-Erling Smørgrav des at
Fri May 18 10:14:32 CEST 2007

Eirik Øverby <ltning at> writes:
> I'm suspecting that varnishncsa (from 1.0.3) doesn't actually listen
> to a SIGHUP - I'm unable to make it re-open its logfile.

Assuming that you didn't do something silly like redirect stdout instead
of using -w, I suspect this may be an effect of aggressive optimization
by the compiler.  Try the following patch:

Index: bin/varnishncsa/varnishncsa.c
--- bin/varnishncsa/varnishncsa.c       (revision 1444)
+++ bin/varnishncsa/varnishncsa.c       (working copy)
@@ -347,7 +347,7 @@
-static sig_atomic_t reopen;
+static volatile sig_atomic_t reopen;
 static void
 sighup(int sig)

Dag-Erling Smørgrav
Senior Software Developer
Linpro AS -

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