linux-kernel - Re: [4.4-rc2] regresstion: ksoftirqd/2 Fatal exception in interrupt pids.freepids.uncharge.constprop

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Message-ID: <1473953.XBDusRJ1Yi@merkaba>
Date:	Mon, 30 Nov 2015 18:16:07 +0100
From:	Martin Steigerwald <martin@...htvoll.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: [4.4-rc2] regresstion: ksoftirqd/2 Fatal exception in interrupt pids.freepids.uncharge.constprop

Am Samstag, 28. November 2015, 12:38:46 CET schrieb Martin Steigerwald:
> Hi!
> 
> I saw this with 4.4-rc2 twice on boot:

I still see this with 4.4-rc3 and reported it here:

Bug 108641 - [REGRESSION] crash on boot: ksoftirqd Fatal exception in 
interrupt, pids_uncharge.constprop, pids_free, cgroup_free

including smartphone photos of the backtrace. They are still not complete 
backtraces tough.

https://bugzilla.kernel.org/show_bug.cgi?id=108641

> pids.freepids.uncharge.constprop
> cgroup_free
> 
> RIP pids.cancel.constprop.
> 
> I think somewhat after systemd mounted cgroup filesystems.
> 
> Had no digital camera at hand and I am on the go, so just these few pointers
> at the moment.
> 
> martin@...kaba:~> phoronix-test-suite system-info
> 
> Phoronix Test Suite v5.2.1
> System Information
> 
> Hardware:
> Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO
> 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 16384MB,
> Disk: 300GB INTEL SSDSA2CW30 + 480GB Crucial_CT480M50, Graphics: Intel HD
> 3000 (1300MHz), Audio: Conexant CX20590, Network: Intel 82579LM Gigabit
> Connection + Intel Centrino Advanced-N 6205
> 
> Software:
> OS: Debian unstable, Kernel: 4.4.0-rc2-tp520+ (x86_64), Desktop: KDE
> Frameworks 5, Display Server: X Server 1.17.3, Display Driver: intel
> 2.99.917, OpenGL: 3.3 Mesa 11.0.5, Compiler: GCC 5.2.1 20151121,
> File-System: btrfs, Screen Resolution: 1920x1080
> 
> kernel config attached.
> 
> One change I made to kernel config that I enabled NUMA awareness. I think as
> this ThinkPad T520 only has a Intel Core i5 (not i7) it may not be able to
> make use of this.
> 
> Thanks,


-- 
Martin
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