[Bug 219153] head, stable/11, release/11.0.1: libkvm (& more?) not updated to handle powerpc/powerpc64 ET_DYN based vmcore.* 's and such

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219153

--- Comment #2 from Mark Millard <markmi at dsl-only.net> ---
(In reply to John Baldwin from comment #1)

The ps -M result for using:

# svnlite diff /usr/src/lib
Index: /usr/src/lib/libkvm/kvm_private.c
===================================================================
--- /usr/src/lib/libkvm/kvm_private.c   (revision 317820)
+++ /usr/src/lib/libkvm/kvm_private.c   (working copy)
@@ -128,7 +128,9 @@
 {

        return (kd->nlehdr.e_ident[EI_CLASS] == class &&
-           kd->nlehdr.e_type == ET_EXEC &&
+           (  kd->nlehdr.e_type == ET_EXEC ||
+              kd->nlehdr.e_type == ET_DYN
+           ) &&
            kd->nlehdr.e_machine == machine);
 }

on powerpc (head -r317820 variant) is:

# ps -M /var/crash/vmcore.7
PID TT  STAT TIME COMMAND

I.e., the vmcore.* file is not rejected but no
actual list of processes is generated. This is
true of the other 6 vmcore.* 's that I have
around as well.

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