Subject: Re: problems building -current
To: Steven M. Bellovin <>
From: Jeff Rizzo <>
List: current-users
Date: 01/10/2005 13:04:42
Steven M. Bellovin wrote:

>I'm doing a 'make release'; on the INSTALL kernels, I'm getting this
>#   compile  INSTALL/ext2fs_vfsops.o
>cc -ffreestanding -Os -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wno-sign-compare -fno-zero-initialized-in-bss -Di386 -I. -I/usr/src/sys/arch -I/usr/src/sys -nostdinc -DMALLOC_NOINLINE -DMAXUSERS=32 -D_KERNEL -D_KERNEL_OPT -c /usr/src/sys/ufs/ext2fs/ext2fs_vfsops.c
>/usr/src/sys/ufs/ext2fs/ext2fs_vfsops.c: In function `ext2fs_mount':
>/usr/src/sys/ufs/ext2fs/ext2fs_vfsops.c:252: warning: `devvp' might be used uninitialized in this function
>*** Error code 1
>For reasons that are not immediately obvious to me, the GENERIC.*
>kernels build successfully, including ext2fs_vfsops.o.  It's also
>not obvious to me why the complier thinks that devvp might be
>uninitialized, though that may just be the limits of the compiler's
>flow analysis ability.  

For what it's worth, "me too!".  Would it be worthwhile to just 
initialize it to NULL simply to work around the problem, or does someone 
with more clue know how to fix it properly...?


Jeff Rizzo                               
Red Crow Group LLC                       
+1 415 550 0310