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Date: Wed, 30 Apr 2008 14:47:38 +0300 From: Sami Farin <safari-kernel@...ari.iki.fi> To: Linux kernel Mailing List <linux-kernel@...r.kernel.org> Cc: Alan Cox <alan@...rguk.ukuu.org.uk> Subject: Re: Linux 2.6.24.4+mmap with overcommit >= 1 On Wed, Apr 30, 2008 at 11:24:53 +0100, Alan Cox wrote: > On Wed, 30 Apr 2008 04:19:54 +0300 > Sami Farin <safari-kernel@...ari.iki.fi> wrote: > > > I have arch x86_64, glibc-2.7.90-7 from Fedora. > > When I have vm.overcommit_memory == 1 or 2, > > mmap succeeds for really huge values. > > These ranges succeed (approximate): > > 8793870000000 - 17500387000000 > > 26390387000000 - 35180387000000 > > Fun fun fun > > This should fix strict overcommit (== 2) I think Thanks, one more reason to boot to 2.6.24.5... This patch needed, too, I guess. diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 3462bfd..a208a7b 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -132,7 +132,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off, #define K(x) ((x) << (PAGE_SHIFT - 10)) si_meminfo(&i); si_swapinfo(&i); - committed = atomic_read(&vm_committed_space); + committed = vm_atomic_read(&vm_committed_space); allowed = ((totalram_pages - hugetlb_total_pages()) * sysctl_overcommit_ratio / 100) + total_swap_pages; -- Do what you love because life is too short for anything else. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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