Disable threading on compression/decompression for hibernate

This commit is contained in:
Justin M. Forbes 2012-03-02 14:18:50 -06:00
parent a3e5ef0ac4
commit 77c4837f0f
2 changed files with 26 additions and 0 deletions

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@ -0,0 +1,17 @@
In attempt to find the cause of some of the hibernate issues we are seeing,
turn off threading for compression.
Signed-off-by: Justin M. Forbes <jforbes@redhat.com>
diff -ruNp a/kernel/power/swap.c b/kernel/power/swap.c
--- a/kernel/power/swap.c 2012-03-02 13:52:27.777485028 -0600
+++ b/kernel/power/swap.c 2012-03-02 14:05:20.168115129 -0600
@@ -401,7 +401,7 @@ static int swap_writer_finish(struct swa
#define LZO_CMP_SIZE (LZO_CMP_PAGES * PAGE_SIZE)
/* Maximum number of threads for compression/decompression. */
-#define LZO_THREADS 3
+#define LZO_THREADS 1
/* Maximum number of pages for read buffering. */
#define LZO_READ_PAGES (MAP_PAGE_ENTRIES * 8)

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@ -781,6 +781,9 @@ Patch21301: cifs-fix-dentry-refcount-leak-when-opening-a-FIFO.patch
#rhbz 728478
Patch21302: sony-laptop-Enable-keyboard-backlight-by-default.patch
# Disable threading in hibernate compression
Patch21303: disable-threading-in-compression-for-hibernate.patch
Patch21400: unhandled-irqs-switch-to-polling.patch
# compat-wireless patches
@ -1509,6 +1512,9 @@ ApplyPatch cifs-fix-dentry-refcount-leak-when-opening-a-FIFO.patch
#rhbz 728478
ApplyPatch sony-laptop-Enable-keyboard-backlight-by-default.patch
#Disable threading in hibernate compression
ApplyPatch disable-threading-in-compression-for-hibernate.patch
ApplyPatch unhandled-irqs-switch-to-polling.patch
# END OF PATCH APPLICATIONS
@ -2382,6 +2388,9 @@ fi
# ||----w |
# || ||
%changelog
* Fri Mar 02 2012 Justin M. Forbes <jforbes@redhat.com>
- Disable threading in hibernate compression/decompression
* Fri Mar 02 2012 Adam Jackson <ajax@redhat.com>
- drm-intel-crtc-dpms-fix.patch: Fix system hang on gen2 kit on DPMS (#730853)