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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2016-12-09 18:35:23 +0100 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2017-06-09 01:39:06 +0200 |
| commit | d9d71007dd19ab2a16a4c95921daa3c9340a562b (patch) | |
| tree | f50b9c89fc96be420b86972b6789962b30867fdb | |
| parent | 825b3f0d3e7b75d58be08afc7aebefc6231bcff4 (diff) | |
| download | kernel_samsung_espresso10-d9d71007dd19ab2a16a4c95921daa3c9340a562b.tar.gz kernel_samsung_espresso10-d9d71007dd19ab2a16a4c95921daa3c9340a562b.tar.bz2 kernel_samsung_espresso10-d9d71007dd19ab2a16a4c95921daa3c9340a562b.zip | |
mm: Disable optimization for function shrink_page_list()
GCC version 5.4.1+svn241155-1 in Debian Stretch has a bug that breaks
the build. The error is attached.
TODO: Gigure out the actual bug or revert patch if a newer GCC is
available in Stretch.
/home/wolfi/6.0-romsrc/kernel/samsung/smdk4412/mm/vmscan.c: In function 'shrink_page_list':
/home/wolfi/6.0-romsrc/kernel/samsung/smdk4412/mm/vmscan.c:1019:1: error: insn does not satisfy its constraints:
}
^
(insn 1111 1814 1112 116 (parallel [
(set (reg/v:SI 3 r3 [orig:111 nr_dirty ] [111])
(and:SI (ne:SI (reg/v:SI 3 r3 [orig:111 nr_dirty ] [111])
(const_int 0 [0]))
(eq:SI (reg/v:SI 3 r3 [orig:111 nr_dirty ] [111])
(reg/v:SI 2 r2 [orig:112 nr_congested ] [112]))))
(clobber (reg:CC 100 cc))
]) /home/wolfi/6.0-romsrc/kernel/samsung/smdk4412/mm/vmscan.c:1011 256 {*and_scc_scc_nodom}
(nil))
/home/wolfi/6.0-romsrc/kernel/samsung/smdk4412/mm/vmscan.c:1019:1: internal compiler error: in extract_constrain_insn, at recog.c:2246
/home/wolfi/6.0-romsrc/kernel/samsung/smdk4412/mm/vmscan.c:1019:1: internal compiler error: Segmentation fault
arm-none-eabi-gcc: internal compiler error: Segmentation fault (program cc1)
Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 4a0d77f0f33..d3d1954e138 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -770,6 +770,7 @@ static noinline_for_stack void free_page_list(struct list_head *free_pages) pagevec_free(&freed_pvec); } +#pragma GCC optimize ("O0") /* * shrink_page_list() returns the number of reclaimed pages */ @@ -1017,6 +1018,7 @@ keep_lumpy: count_vm_events(PGACTIVATE, pgactivate); return nr_reclaimed; } +#pragma GCC reset_options /* * Attempt to remove the specified page from its LRU. Only take this page |