Messages in this thread Patch in this message |  | | Date | Mon, 4 Jun 2001 21:08:35 +0400 | From | Ivan Kokshaysky <> | Subject | [patch] Re: Linux 2.4.5-ac6 |
| |
On Fri, Jun 01, 2001 at 10:27:09PM -0400, Tom Vier wrote: > > o Fix mmap cornercase (Maciej Rozycki) > > when i try running osf/1 netscape on alpha, mmap of libXmu fails. works fine > on -ac5.
Indeed. Netscape is essentially 32 bit application, so probably it treats TASK_UNMAPPED_BASE (0x20000000000) as failure. A tad more respect of specified address fixes that. Also small fix for endless compile warnings with gcc 3.0 on alpha (`struct mm_struct' declared inside parameter list).
Ivan.
--- 2.4.5-ac7/mm/mmap.c Mon Jun 4 14:19:02 2001 +++ linux/mm/mmap.c Mon Jun 4 19:22:31 2001 @@ -404,10 +404,13 @@ static inline unsigned long arch_get_unm if (addr) { addr = PAGE_ALIGN(addr); - vma = find_vma(current->mm, addr); - if (TASK_SIZE - len >= addr && - (!vma || addr + len <= vma->vm_start)) - return addr; + for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) { + if (TASK_SIZE - len < addr) + break; + if (!vma || addr + len <= vma->vm_start) + return addr; + addr = vma->vm_end; + } } addr = PAGE_ALIGN(TASK_UNMAPPED_BASE); --- 2.4.5-ac7/include/linux/binfmts.h Mon Jun 4 14:19:00 2001 +++ linux/include/linux/binfmts.h Mon Jun 4 20:24:50 2001 @@ -32,6 +32,9 @@ struct linux_binprm{ unsigned long loader, exec; }; +/* Forward declaration */ +struct mm_struct; + /* * This structure defines the functions that are used to load the binary formats that * linux accepts. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |