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authorDaniel Golle <daniel@makrotopia.org>2019-06-12 01:14:25 +0200
committerDaniel Golle <daniel@makrotopia.org>2019-06-12 01:18:52 +0200
commit000d400baa0af2e42c9a462e42df7dc9abde1ec7 (patch)
treea11c2dd570e8f02c4a141f135fc8db1e1d391ef2 /target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch
parentc4e727f01cc40bd57274d0b885b0f75cde9c4683 (diff)
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kernel: drop everything not on kernel version 4.14
* Remove testing patches for kernel version 4.19 * remove targets ar7, ixp4xx, orion Those targets are still on kernel 4.9, patches for 4.14 were not ready in time. They may be readded once people prepare and test patches for kernel 4.14. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch')
-rw-r--r--target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch82
1 files changed, 0 insertions, 82 deletions
diff --git a/target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch b/target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch
deleted file mode 100644
index d010445bcb..0000000000
--- a/target/linux/generic/pending-4.9/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch
+++ /dev/null
@@ -1,82 +0,0 @@
-From: Tobias Wolf <dev-NTEO@vplace.de>
-Subject: mm: Fix alloc_node_mem_map with ARCH_PFN_OFFSET calculation
-
-An rt288x (ralink) based router (Belkin F5D8235 v1) does not boot with any
-kernel beyond version 4.3 resulting in:
-
-BUG: Bad page state in process swapper pfn:086ac
-
-bisect resulted in:
-
-a1c34a3bf00af2cede839879502e12dc68491ad5 is the first bad commit
-commit a1c34a3bf00af2cede839879502e12dc68491ad5
-Author: Laura Abbott <laura@labbott.name>
-Date: Thu Nov 5 18:48:46 2015 -0800
-
- mm: Don't offset memmap for flatmem
-
- Srinivas Kandagatla reported bad page messages when trying to remove the
- bottom 2MB on an ARM based IFC6410 board
-
- BUG: Bad page state in process swapper pfn:fffa8
- page:ef7fb500 count:0 mapcount:0 mapping: (null) index:0x0
- flags: 0x96640253(locked|error|dirty|active|arch_1|reclaim|mlocked)
- page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
- bad because of flags:
- flags: 0x200041(locked|active|mlocked)
- Modules linked in:
- CPU: 0 PID: 0 Comm: swapper Not tainted 3.19.0-rc3-00007-g412f9ba-dirty
-#816
- Hardware name: Qualcomm (Flattened Device Tree)
- unwind_backtrace
- show_stack
- dump_stack
- bad_page
- free_pages_prepare
- free_hot_cold_page
- __free_pages
- free_highmem_page
- mem_init
- start_kernel
- Disabling lock debugging due to kernel taint
- [...]
-:040000 040000 2de013c372345fd471cd58f0553c9b38b0ef1cc4
-0a8156f848733dfa21e16c196dfb6c0a76290709 M mm
-
-This fix for ARM does not account ARCH_PFN_OFFSET for mem_map as later used by
-page_to_pfn anymore.
-
-The following output was generated with two hacked in printk statements:
-
-printk("before %p vs. %p or %p\n", mem_map, mem_map - offset, mem_map -
-(pgdat->node_start_pfn - ARCH_PFN_OFFSET));
- if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
- mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
-printk("after %p\n", mem_map);
-
-Output:
-
-[ 0.000000] before 8861b280 vs. 8861b280 or 8851b280
-[ 0.000000] after 8851b280
-
-As seen in the first line mem_map with subtraction of offset does not equal the
-mem_map after subtraction of ARCH_PFN_OFFSET.
-
-After adding the offset of ARCH_PFN_OFFSET as well to mem_map as the
-previously calculated offset is zero for the named platform it is able to boot
-4.4 and 4.9-rc7 again.
-
-Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
----
-
---- a/mm/page_alloc.c
-+++ b/mm/page_alloc.c
-@@ -5922,7 +5922,7 @@ static void __ref alloc_node_mem_map(str
- mem_map = NODE_DATA(0)->node_mem_map;
- #if defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) || defined(CONFIG_FLATMEM)
- if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
-- mem_map -= offset;
-+ mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
- #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
- }
- #endif