Skip to main content

Browse the archive

https://github.com/torvalds/linux
17 August 2024, 15:42:30 UTC
Revision 5ea80f76a56605a190a7ea16846c82aa63dbd0aa authored by Linus Torvalds on 22 August 2013, 16:13:06 UTC, committed by Linus Torvalds on 22 August 2013, 17:18:44 UTC 
Revert "x86 get_unmapped_area(): use proper mmap base for bottom-up direction"
 
This reverts commit df54d6fa54275ce59660453e29d1228c2b45a826.

The commit isn't necessarily wrong, but because it recalculates the
random mmap_base every time, it seems to confuse user memory allocators
that expect contiguous mmap allocations even when the mmap address isn't
specified.

In particular, the MATLAB Java runtime seems to be unhappy. See

  https://bugzilla.kernel.org/show_bug.cgi?id=60774

So we'll want to apply the random offset only once, and Radu has a patch
for that.  Revert this older commit in order to apply the other one.

Reported-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Radu Caragea <sinaelgl@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent d936d2d
History
Tip revision: 5ea80f76a56605a190a7ea16846c82aa63dbd0aa authored by Linus Torvalds on 22 August 2013, 16:13:06 UTC
Revert "x86 get_unmapped_area(): use proper mmap base for bottom-up direction"
Tip revision: 5ea80f7
File Mode Size
Documentation
arch
block
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.gitignore -rw-r--r-- 1.1 KB
.mailmap -rw-r--r-- 4.4 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 93.1 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 253.9 KB
Makefile -rw-r--r-- 47.4 KB
README -rw-r--r-- 18.3 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

README

back to top