From: Sage Weil <sage@redhat.com>
Date: Thu, 4 Apr 2019 19:51:21 +0000 (-0500)
Subject: global/signal_handler: avoid core dump on EIO
X-Git-Tag: v15.1.0~3005^2~3
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e3464df47b2e83ee160362a897adc1191a922ce9;p=ceph.git

global/signal_handler: avoid core dump on EIO

Generating a core dump is overkill if we hit an EIO error from the
hardware.  Exit with an error code instead.

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/global/signal_handler.cc b/src/global/signal_handler.cc
index 91be152f2b87..56a586d7f018 100644
--- a/src/global/signal_handler.cc
+++ b/src/global/signal_handler.cc
@@ -318,7 +318,13 @@ static void handle_fatal_signal(int signum)
     }
   }
 
-  reraise_fatal(signum);
+  if (g_eio) {
+    // if this was an EIO crash, we don't need to trigger a core dump,
+    // since the problem is hardware, or some layer beneath us.
+    _exit(EIO);
+  } else {
+    reraise_fatal(signum);
+  }
 }
 
 void install_standard_sighandlers(void)