[Libguestfs] nbdkit build failure in Koji
Richard W.M. Jones
rjones at redhat.com
Sat Aug 1 17:39:03 UTC 2020
On Sat, Aug 01, 2020 at 08:46:11AM +0100, Richard W.M. Jones wrote:
>
> One thing I noticed which is a bit odd is:
>
> $ rm file; for f in {0..1023}; do printf '%1024s' .; done > file; stat -c "%b %B" file
> 2048 512
> $ rm file; for f in {0..1023}; do printf '%1024s' . >> file; done ; stat -c "%b %B" file
> 3968 512
>
> The second method is how we currently create the file. Since looking
> through the history there seems to be no reason for that I'm going to
> push a commit which changes file creation to the first method, and it
> may be slightly faster too.
>
> However it makes me wonder if the file is not laid out in a single
> extent and if that might be causing our problems. Being only able
> to reproduce this on Koji makes a bit tedious to test theories :-(
I pushed this patch and did another test build in Koji, but
the issue is still not fixed.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW
More information about the Libguestfs
mailing list