Re: current e2fsprogs maint branch test results

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On Tue, Dec 17, 2013 at 06:43:13PM -0500, Eric Whitney wrote:
> I've built the contents of the current e2fsprogs maint branch (4727c67dc2)
> and run make check on both a Pandaboard (ARM) and an x86-64 VM. In each
> case I used the following arguments to configure: --disable-uuidd
> --disable-libuuid --disable-libblkid.
> 
> Both the ARM and x86-64 runs produced warnings when compiling ea_refcount.c
> during make check.  I posted a patch yesterday (e2fsck: fix printf
> conversion specs in ea_refcount.c) that clears those up for me on both
> platforms.
> 
> The ARM build and make check were otherwise clean.
> 
> The x86-64 build and make check contained one more problem - a warning while
> compiling debugfs.c:
> ../../debugfs/debugfs.c:2462:5: warning: too many arguments for format
>  [-Wformat-extra-args]
> 
> This code (commit fe56188b07) is part of that used to check superblock block
> numbers specified on the command line, and the error reporting has become
> a little fuzzy relative to what we had previously.
> 
> Before:
> 
> root@debug1:~# debugfs -s 327b /dev/vdc
> debugfs 1.42.8 (20-Jun-2013)
> debugfs: Bad superblock number - 327b
> 
> After:
> 
> root@debug1:~# debugfs -s 327b /dev/vdc
> debugfs 1.42.8 (20-Jun-2013)
> debugfs: Bad block number - 327b
> debugfs: Invalid block number: 327b
> debugfs: Operation not permitted 
> 
> Both strtoblk() and parseulonglong() (which it calls) output error messages
> for bad/invalid block numbers, which is redundant in this case.  The last
> (erroneous) error message is output by the call to com_err() which also 
> causes the warning noted above.
> 
> It seems to me that the call to com_err() ought to be deleted, and maybe
> the immediately preceding call to strtoblk() ought to be converted to a call
> to parseulonglong() to restore the original messaging.  I'd like to post a
> patch, but there are a number of other calls to strtoblk() in debugfs now
> that will produce two messages on errors, and the intent isn't clear to me.
> Is this just an area that needed a little more polish?

Back in October, I wrote a patch[1] that did a straight conversion to
parse_ulonglong for 64bit support, but Lukas suggested using strtoblk instead.
So I changed it, and that's what's in there now... uglified.  Sorry about that.
I should have argued more strongly against strtoblk. :(

I don't have a problem with changing it to parse_ulonglong.

[1] http://patchwork.ozlabs.org/patch/279295/

--D
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