bin/184950: swapon aborts on gdbe device

Thu Dec 19 21:40:41 UTC 2013

The following reply was made to PR bin/184950; it has been noted by GNATS.

From: Radim Kolar <hsn at sendmail.cz>
To: "bug-followup at freebsd.org" <bug-followup at freebsd.org>
Cc:  
Subject: RE: bin/184950: swapon aborts on gdbe device
Date: Thu, 19 Dec 2013 21:29:17 +0000

  	<201312172237.rBHMbZtM020615 at oldred.freebsd.org>,<201312172240.rBHMe0ER025897 at freefall.freebsd.org>
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 it looks like bug in clang compiler. If i compile with standard options and=
  DEBUG_FLAGS=3D-g then it crashes:

 bt

 0: kill() from libc
 1: __stack_chk_fail() from libc.so.7
 2: __stack_chk_fail() from libc.so.7
 3: swap_on_off() swapon.c:249
 4: main swapon.c:186

 If i compile it with -O0 -g then  it do not crashes.
  		 	   		  =

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 <body class=3D'hmmessage'><div dir=3D'ltr'>it looks like bug in clang compi=
 ler. If i compile with standard options and DEBUG_FLAGS=3D-g then it crashe=
 s:<br><br>bt<br><br>0: kill() from libc<br>1: __stack_chk_fail() from libc.=
 so.7<br>2: __stack_chk_fail() from libc.so.7<br>3: swap_on_off() swapon.c:2=
 49<br>4: main swapon.c:186<br><br>If i compile it with -O0 -g then&nbsp=3B =
 it do not crashes.<br> 		 	   		  </div></body>
 </html>=

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