[Libguestfs] Figuring out some failing tests for libnbd

Richard W.M. Jones rjones at redhat.com
Wed Jul 7 11:01:51 UTC 2021


On Wed, Jul 07, 2021 at 12:23:28PM +0200, Martin Kletzander wrote:
> On Tue, Jul 06, 2021 at 09:06:13AM +0100, Richard W.M. Jones wrote:
> >On Wed, Jun 30, 2021 at 05:07:31PM +0100, Richard W.M. Jones wrote:
> >>https://gitlab.com/nertpinx/libnbd/-/jobs/1389193577
> >>
> >>This has dozens of failures in the OCaml tests.  Most but not
> >>all of them are like this:
> >>
> >>==20650== 16 bytes in 1 blocks are still reachable in loss record 1 of 38
> >>==20650==    at 0x483E7B5: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
> >>==20650==    by 0x47239C: caml_stat_alloc_noexc (memory.c:818)
> >>==20650==    by 0x47239C: caml_stat_alloc (memory.c:840)
> >>==20650==    by 0x485BCD: caml_register_custom_operations (custom.c:121)
> >>==20650==    by 0x485BCD: caml_init_custom_operations (custom.c:163)
> >>==20650==    by 0x48BE46: caml_startup_common (startup_nat.c:132)
> >>==20650==    by 0x48C05A: caml_startup_exn (startup_nat.c:163)
> >>==20650==    by 0x48C05A: caml_startup (startup_nat.c:168)
> >>==20650==    by 0x48C05A: caml_main (startup_nat.c:175)
> >>==20650==    by 0x430CEB: main (main.c:41)
> >
> >I took a proper look at this issue last night and it should be fixed
> >in these two commits:
> >
> >https://gitlab.com/nbdkit/nbdkit/-/commit/99140272a0675b3d123d2c42cb0a5ab73b09fba2
> >https://gitlab.com/nbdkit/nbdkit/-/commit/875a5056758dca754225f49516a0f4c8e788ac94
> >
> 
> Yes, looks like it is, thanks.  I also figured out the last failing test
> and if it goes well I will push those ACKed from the last week and send
> the last one to finally get the pipeline all green.

I realised now this is libnbd - my fixes went into nbdkit.
However the equivalent fix for libnbd should work too.

Rich.

> >Rich.
> >
> >-- 
> >Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> >Read my programming and virtualization blog: http://rwmj.wordpress.com
> >virt-top is 'top' for virtual machines.  Tiny program with many
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> >http://people.redhat.com/~rjones/virt-top
> >



-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v




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