This is a note to let you know that I've just added the patch titled
Revert "epoll: use freezable blocking call"
to the 3.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-epoll-use-freezable-blocking-call.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c511851de162e8ec03d62e7d7feecbdf590d881d Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>
Date: Tue, 29 Oct 2013 13:12:56 +0100
Subject: Revert "epoll: use freezable blocking call"
From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>
commit c511851de162e8ec03d62e7d7feecbdf590d881d upstream.
This reverts commit 1c441e921201 (epoll: use freezable blocking call)
which is reported to cause user space memory corruption to happen
after suspend to RAM.
Since it appears to be extremely difficult to root cause this
problem, it is best to revert the offending commit and try to address
the original issue in a better way later.
References: https://bugzilla.kernel.org/show_bug.cgi?id=61781
Reported-by: Natrio <natrio@xxxxxxx>
Reported-by: Jeff Pohlmeyer <yetanothergeek@xxxxxxxxx>
Bisected-by: Leo Wolf <jclw@xxxxxxxxx>
Fixes: 1c441e921201 (epoll: use freezable blocking call)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/eventpoll.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -34,7 +34,6 @@
#include <linux/mutex.h>
#include <linux/anon_inodes.h>
#include <linux/device.h>
-#include <linux/freezer.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/mman.h>
@@ -1603,8 +1602,7 @@ fetch_events:
}
spin_unlock_irqrestore(&ep->lock, flags);
- if (!freezable_schedule_hrtimeout_range(to, slack,
- HRTIMER_MODE_ABS))
+ if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS))
timed_out = 1;
spin_lock_irqsave(&ep->lock, flags);
Patches currently in stable-queue which might be from rafael.j.wysocki@xxxxxxxxx are
queue-3.11/cpufreq-s3c64xx-rename-index-to-driver_data.patch
queue-3.11/cpufreq-intel_pstate-fix-max_perf_pct-on-resume.patch
queue-3.11/revert-epoll-use-freezable-blocking-call.patch
queue-3.11/revert-select-use-freezable-blocking-call.patch
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