From: Greg KH <gregkh@linuxfoundation.org>
To: Byungchul Park <byungchul.park@lge.com>
Cc: <stable@vger.kernel.org>, <peterz@infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [STABLE] kernel oops which can be fixed by peterz's patches
Date: Tue, 01 Mar 2016 08:15:55 +0000 [thread overview]
Message-ID: <20160301065424.GA13774@kroah.com> (raw)
In-Reply-To: <20160105085211.GB3621@X58A-UD3R>
On Tue, Jan 05, 2016 at 05:52:11PM +0900, Byungchul Park wrote:
>
> Upstream commits to be applied
> ==============================
>
> e3fca9e: sched: Replace post_schedule with a balance callback list
> 4c9a4bc: sched: Allow balance callbacks for check_class_changed()
> 8046d68: sched,rt: Remove return value from pull_rt_task()
> fd7a4be: sched, rt: Convert switched_{from, to}_rt() / prio_changed_rt() to balance callbacks
> 0ea60c2: sched,dl: Remove return value from pull_dl_task()
> 9916e21: sched, dl: Convert switched_{from, to}_dl() / prio_changed_dl() to balance callbacks
>
> The reason why these should be applied
> ======================================
>
> Our products developed using 3.16 kernel, faced a kernel oops which can
> be fixed with above upstreamed patches. The oops is caused by "Unable
> to handle kernel NULL pointer dereference at virtual address 000000xx"
> in the call path,
>
> __sched_setscheduler()
> check_class_changed()
> switched_to_fair()
> check_preempt_curr()
> check_preempt_wakeup()
> find_matching_se()
> is_same_group()
>
> by "if (se->cfs_rq == pse->cfs_rq) // se, pse == NULL" condition.
>
> How to apply it
> ===============
>
> For stable 4.2.8+:
> N/A (already applied)
>
> For longterm 4.1.15:
> Cherry-picking the upsteam commits works with a trivial conflict.
>
> For longterm 3.18.25:
> Refer to the backported patches in this thread.
>
> For longterm 3.14.58:
> Refer to the backported patches in this thread. And applying
> additional "6c3b4d4: sched: Clean up idle task SMP logic" commit
> makes backporting the upstream commits much simpler. So my
> backporting patches include the patch.
All now applied to the 3.14-stable queue, thanks.
greg k-h
next prev parent reply other threads:[~2016-03-01 8:16 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 8:52 [STABLE] kernel oops which can be fixed by peterz's patches Byungchul Park
2016-01-05 9:14 ` Peter Zijlstra
2016-01-12 8:47 ` Byungchul Park
2016-01-12 10:21 ` Willy Tarreau
2016-01-25 7:25 ` Byungchul Park
2016-02-16 7:08 ` Byungchul Park
2016-02-16 8:44 ` Peter Zijlstra
2016-02-16 17:42 ` Greg KH
2016-02-17 0:11 ` Byungchul Park
2016-02-17 0:41 ` Greg KH
2016-02-17 2:00 ` Byungchul Park
2016-02-17 3:01 ` Greg KH
2016-02-17 3:02 ` Mike Galbraith
2016-02-23 21:05 ` Ben Hutchings
2016-02-23 21:06 ` Ben Hutchings
2016-01-05 9:16 ` [PATCH for v3.14.58 1/7] sched: Clean up idle task SMP logic Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 2/7] sched: Replace post_schedule with a balance callback list Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 3/7] sched: Allow balance callbacks for check_class_changed() Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 4/7] sched,rt: Remove return value from pull_rt_task() Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 5/7] sched, rt: Convert switched_{from, to}_rt() / prio_changed_rt() to balance callbacks Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 6/7] sched,dl: Remove return value from pull_dl_task() Byungchul Park
2016-01-05 9:16 ` [PATCH for v3.14.58 7/7] sched, dl: Convert switched_{from, to}_dl() / prio_changed_dl() to balance callbacks Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 1/6] sched: Replace post_schedule with a balance callback list Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 2/6] sched: Allow balance callbacks for check_class_changed() Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 3/6] sched,rt: Remove return value from pull_rt_task() Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 4/6] sched, rt: Convert switched_{from, to}_rt() / prio_changed_rt() to balance callbacks Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 5/6] sched,dl: Remove return value from pull_dl_task() Byungchul Park
2016-01-05 9:24 ` [PATCH for v3.18.25 6/6] sched, dl: Convert switched_{from, to}_dl() / prio_changed_dl() to balance callbacks Byungchul Park
2016-03-01 8:15 ` Greg KH [this message]
2016-07-18 6:31 ` [STABLE] kernel oops which can be fixed by peterz's patches Byungchul Park
2016-07-18 12:09 ` Greg KH
2016-07-18 23:59 ` Byungchul Park
2016-06-13 18:31 ` Ben Hutchings
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