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Fix format warnings due to half-word #2

pabe opened this Issue May 6, 2011 · 0 comments

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pabe commented May 6, 2011

Fix format warnings like (blow is just listed as an example)

  • hipe/hipe_bif2.c:93:5: warning: format '%0*lx' expects type 'long unsigned int', but argument 3 has type 'Eterm'
  • hipe/hipe_bif2.c:111:3: warning: format '%#lx' expects type 'long unsigned int', but argument 2 has type 'Eterm'
  • hipe/hipe_bif2.c:120:6: warning: format '%0*lx' expects type 'long unsigned int', but argument 5 has type 'Eterm'
@Anden Anden pushed a commit that referenced this issue Nov 17, 2011
joewilliams General improvements to release_handler_1:get_supervised_procs
The core issues this patch attempts to solve is two fold, 1) have
release_handler_1 act slightly differently in two corner cases and 2)
clean up the code in get_supervised_procs/0 to remove nested cases and

Regarding #1, get_supervised_procs/0 will now call functions to
test to see if the supervisor is suspended before attempting to ask it
for a list of children. It now will print an error message regarding
the suspended supervisor and produce an error that will cause the VM
to restart. Previously it would timeout attempting the call to
which_children and the VM would restart without any details regarding
the reason.

The second corner case is if in a child specification a supervisor is
incorrectly stated to be a worker and get_modules is called against it.
A timeout will occur causing a VM restart. Similar to the last corner
case in this patch an error message is printed and an error is emitted
causing a VM restart.

When first looking into the issue it was hard to discover why my
upgrades where failing. All I received during the upgrade process was
a timeout and a VM restart, no other information. This patch should
help users track down issues like these.

Regarding #2, due to the above confusion in trying to figure out what
had happened I dug into the code and started tracing it through and
found that the nested case statements and etc made it confusing. So I
started to rework and clean up, hopefully making this code path clearer
to future readers.
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