Date: Sat, 31 Mar 2018 15:59:06 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 227116] CURRENT doesn't boot with integer divide fault in uma_startup_count Message-ID: <bug-227116-8-oFfehw58V5@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-227116-8@https.bugs.freebsd.org/bugzilla/> References: <bug-227116-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227116 --- Comment #13 from Daniel Kolesa <daniel@octaforge.org> --- (In reply to Konstantin Belousov from comment #11) That's amusing, I just came to the same conclusion by isolating the code in= to a standalone .c program with stubbed out variables. --- /* Memory for the rest of startup zones, UMA and VM, ... */ if (zsize > UMA_SLAB_SIZE) { printf("branch1\n"); pages +=3D (zones + vm_zones) * howmany(roundup2(zsize, UMA_BOOT_ALIGN), UMA_SLAB_SIZE); } else { printf("branch2\n"); printf("roundup2 %d\n", roundup2(zsize, UMA_BOOT_ALIGN)); pages +=3D howmany(zones, UMA_SLAB_SPACE / roundup2(zsize, UMA_BOOT_ALIGN)); } --- --- $ ./foo=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 KSIZE 304 ZSIZE 3984 UMA_SLAB_SIZE 4096 sizeof uma_slab 112 UMA_SLAB_SPACE 3984 branch2 roundup2 4000 zsh: floating point exception ./foo --- So yeah, indeed, this seems to be the source of error. --=20 You are receiving this mail because: You are the assignee for the bug.=
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