Date: Tue, 15 Mar 2011 06:04:13 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r219657 - projects/altix/sys/boot/ia64/common Message-ID: <201103150604.p2F64DNV023234@svn.freebsd.org>
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Author: marcel Date: Tue Mar 15 06:04:13 2011 New Revision: 219657 URL: http://svn.freebsd.org/changeset/base/219657 Log: Round the size, not the top address. This makes the code less sensitive to compiler bugs (32-bit truncation). Modified: projects/altix/sys/boot/ia64/common/exec.c Modified: projects/altix/sys/boot/ia64/common/exec.c ============================================================================== --- projects/altix/sys/boot/ia64/common/exec.c Tue Mar 15 01:06:27 2011 (r219656) +++ projects/altix/sys/boot/ia64/common/exec.c Tue Mar 15 06:04:13 2011 (r219657) @@ -160,8 +160,8 @@ mmu_setup_paged(vm_offset_t pbvm_top) PTE_AR_RW); /* Wire as much of the PBVM we can. This must be a power of 2. */ - pbvm_top = (pbvm_top + IA64_PBVM_PAGE_MASK) & ~IA64_PBVM_PAGE_MASK; sz = pbvm_top - IA64_PBVM_BASE; + sz = (sz + IA64_PBVM_PAGE_MASK) & ~IA64_PBVM_PAGE_MASK; while (sz & (sz - 1)) sz -= IA64_PBVM_PAGE_SIZE; mmu_wire(IA64_PBVM_BASE, ia64_pgtbl[0], sz, PTE_AR_RWX);
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