Helge Deller dbdf076099 parisc: Switch from DISCONTIGMEM to SPARSEMEM ... The commit 1c30844d2d ("mm: reclaim small amounts of memory when an external fragmentation event occurs") breaks memory management on a parisc c8000 workstation with this memory layout: 0) Start 0x0000000000000000 End 0x000000003fffffff Size 1024 MB 1) Start 0x0000000100000000 End 0x00000001bfdfffff Size 3070 MB 2) Start 0x0000004040000000 End 0x00000040ffffffff Size 3072 MB With the patch 1c30844d2d, the kernel will incorrectly reclaim the first zone when it fills up, ignoring the fact that there are two completely free zones. Basiscally, it limits cache size to 1GiB. The parisc kernel is currently using the DISCONTIGMEM implementation, but isn't NUMA. Avoid this issue or strange work-arounds by switching to the more commonly used SPARSEMEM implementation. Reported-by: Mikulas Patocka <mpatocka@redhat.com> Fixes: 1c30844d2d ("mm: reclaim small amounts of memory when an external fragmentation event occurs") Signed-off-by: Helge Deller <deller@gmx.de>		2019-05-03 23:47:40 +02:00
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boot	parisc: PA-Linux requires at least 32 MB RAM	2019-05-03 23:47:39 +02:00
configs	net: Remove CONFIG_NETFILTER_DEBUG and _ASSERT() macros.	2017-09-04 13:25:20 +02:00
include	parisc: Switch from DISCONTIGMEM to SPARSEMEM	2019-05-03 23:47:40 +02:00
kernel	parisc: Switch from DISCONTIGMEM to SPARSEMEM	2019-05-03 23:47:40 +02:00
lib	parisc: iomap: introduce io{read|write}64	2019-01-22 13:39:59 +01:00
math-emu	signal/parisc: Use force_sig_fault where appropriate	2018-04-25 10:44:06 -05:00
mm	parisc: Switch from DISCONTIGMEM to SPARSEMEM	2019-05-03 23:47:40 +02:00
oprofile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
defpalo.conf	parisc: switch to gzip-compressed vmlinuz kernel	2013-07-09 22:09:20 +02:00
install.sh	parisc: make "make install" not depend on vmlinux	2013-11-07 22:28:06 +01:00
Kconfig	parisc: Switch from DISCONTIGMEM to SPARSEMEM	2019-05-03 23:47:40 +02:00
Kconfig.debug	Kconfig: consolidate the "Kernel hacking" menu	2018-08-02 08:06:48 +09:00
Makefile	parisc: generate uapi header and system call table files	2018-12-10 08:26:04 +01:00
nm