[Bug 227116] CURRENT doesn't boot with integer divide fault in uma_startup_count

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227116

--- Comment #12 from Gleb Smirnoff <glebius at FreeBSD.org> ---
Thanks Kostik. I was just preparing a patch to print out all variables.

So, the fix should be:

Index: uma_core.c
===================================================================
--- uma_core.c  (revision 331844)
+++ uma_core.c  (working copy)
@@ -1820,7 +1820,7 @@ uma_startup_count(int vm_zones)
 #endif

        /* Memory for the rest of startup zones, UMA and VM, ... */
-       if (zsize > UMA_SLAB_SIZE)
+       if (roundup2(zsize, UMA_BOOT_ALIGN) > UMA_SLAB_SIZE)
                pages += (zones + vm_zones) *
                    howmany(roundup2(zsize, UMA_BOOT_ALIGN), UMA_SLAB_SIZE);
        else

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