Re: [PATCH v3 1/2] mm, proc: Fix region lost in /proc/self/smaps
From: Michal Hocko <mhocko@kernel.org>
Date: 2016-09-23 14:39:13
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On Fri 23-09-16 15:50:51, Michal Hocko wrote:
On Fri 23-09-16 21:12:33, Robert Ho wrote:
[...]
quoted
@@ -786,7 +791,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) "KernelPageSize: %8lu kB\n" "MMUPageSize: %8lu kB\n" "Locked: %8lu kB\n", - (vma->vm_end - vma->vm_start) >> 10, + (vma->vm_end - max(vma->vm_start, m->version)) >> 10, mss.resident >> 10, (unsigned long)(mss.pss >> (10 + PSS_SHIFT)), mss.shared_clean >> 10,
And forgot to mention that this is not sufficient either. You also need to restrict the pte walk to get sane numbers... -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>