[ANNOUNCE] 3.2.60-rt87

[ANNOUNCE] 3.2.60-rt87

[Steven Rostedt]

Dear RT Folks,

I'm pleased to announce the 3.2.60-rt87 stable release.


This release is just an update to the new stable 3.2.60 version
and no RT specific changes have been made.


You can get this release via the git tree at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

  branch: v3.2-rt
  Head SHA1: f36f978f8ef9b46688a3a3b1c4406984790a9303


Or to build 3.2.60-rt87 directly, the following patches should be applied:

  http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.tar.xz

  http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.60.xz

  http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/patch-3.2.60-rt87.patch.xz




Enjoy,

-- Steve

3.2.60-rt87: arm: Doesn't boot in certain case

[Rolf Peukert]

Hello Steven,

I just tried the new kernel version 3.2.60-rt87 on our ARM-Cortex-A8
board and while it works fine with the standard configuration, it won't
boot if the option CONFIG_MISSED_TIMER_OFFSETS_HIST is set.

The kernel error message reports a NULL pointer dereference at
__hrtimer_start_range_ns+0xf4, which probably is line 1038 in file
kernel/hrtimer.c, where new_base->get_time() is called before new_base
is set.
(actually there was a compiler warning too, but I didn't pay enough
attention to the compiler output...)


#ifdef CONFIG_MISSED_TIMER_OFFSETS_HIST
        {
                ktime_t now = new_base->get_time();

                if (ktime_to_ns(tim) < ktime_to_ns(now))
                        timer->praecox = now;
                else
                        timer->praecox = ktime_set(0, 0);
        }
#endif
        hrtimer_set_expires_range_ns(timer, tim, delta_ns);

        /* Switch the timer base, if necessary: */
        new_base = switch_hrtimer_base(timer, base, mode &
HRTIMER_MODE_PINNED);


Since I moved the #ifdef...#endif block down below the
new_base=switch_hrtimer... statement, the kernel boots and works so far,
but I'm not sure if this is what was originally intended here.

Best regards
Rolf

3.14.10 patch falied

[Pavel Vasilyev]

19.06.2014 04:13, Steven Rostedt пишет:


5 out of 22 hunks FAILED -- saving rejects to file kernel/locking/rtmutex.c.rej

diffs: 
https://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv3.x%2Fincr%2Fpatch-3.14.9-10.xz;z=104

-- 

                                                          Pavel.
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