From 6f6cf0d29890aa3068bca48a3da384ffa5c73b4d Mon Sep 17 00:00:00 2001 From: "Jay Freeman (saurik)" Date: Mon, 30 Jan 2017 09:13:46 -0800 Subject: The length given to msync was calculated wrong :/. --- apt-pkg/contrib/mmap.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc index d85a7f169..10786f23f 100644 --- a/apt-pkg/contrib/mmap.cc +++ b/apt-pkg/contrib/mmap.cc @@ -200,7 +200,8 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop) { #ifdef _POSIX_SYNCHRONIZED_IO unsigned long long const PSize = sysconf(_SC_PAGESIZE); - if (msync((char *)Base+(Start/PSize)*PSize, Stop - Start, MS_SYNC) < 0) + Start = (Start/PSize)*PSize; + if (msync((char *)Base+Start, Stop - Start, MS_SYNC) < 0) return _error->Errno("msync", _("Unable to synchronize mmap")); #endif } -- cgit v1.2.3