[Libguestfs] Figuring out some failing tests for libnbd

[Richard W.M. Jones]

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

Rich.

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