File syslog-ng-HP-UX-100-CPU-spinning.diff of Package syslog-ng

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File syslog-ng-HP-UX-100-CPU-spinning.diff of Package syslog-ng (Revision 81d494ed8c4c34cef44c79e14552305d)

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From c40a607eb5e4b4c83a2a29c20dd64644174f30a7 Mon Sep 17 00:00:00 2001
From: Balazs Scheidler <bazsi@balabit.hu>
Date: Thu, 6 Nov 2008 11:53:32 +0100
Subject: [PATCH 1/2] fixed 100% CPU spinning on HP-UX upon a connection break

As I see the problem seems to be caused by the fact that HP-UX returns
POLLERR only without the other bits (e.g. POLLHUP) syslog-ng would
handle this gracefully if either the other bits would be set, or there'd
be some pending messages to send, in which case a normal write() error
would occur.
---
 src/logwriter.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/logwriter.c b/src/logwriter.c
index bb82b43..7a5fcf7 100644
--- a/src/logwriter.c
+++ b/src/logwriter.c
@@ -139,6 +139,13 @@ log_writer_fd_dispatch(GSource *source,
       log_writer_broken(self->writer, NC_CLOSE);
       return FALSE;
     }
+  else if (self->pollfd.revents & (G_IO_ERR))
+    {
+      msg_error("POLLERR occurred while idle",
+                evt_tag_int("fd", self->fd->fd),
+                NULL);
+      log_writer_broken(self->writer, NC_WRITE_ERROR);
+    }
   else if (self->writer->queue->length || self->writer->partial)
     {
       if (!log_writer_flush_log(self->writer, self->fd))
-- 
1.6.4.2

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File syslog-ng-HP-UX-100-CPU-spinning.diff of Package syslog-ng (Revision 81d494ed8c4c34cef44c79e14552305d)

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