Date: Wed, 27 Apr 2016 20:51:56 +0200
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: linux-kernel@vger.kernel.org
Subject: Re: Regression of v4.6-rc vs. v4.5: hangs after a few minutes after
 boot
Message-ID: <20160427205156.5e823476@kant>
In-Reply-To: <20160426210008.2f79fcdf@kant>
References: <20160426210008.2f79fcdf@kant>
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On Apr 26 Stefan Richter wrote:
> v4.6-rc solidly hangs after a short while after boot, login to X11, and
> doing nothing much remarkable on the just brought up X desktop.
> 
> Hardware: x86-64, E3-1245 v3 (Haswell),
>           mainboard Supermicro X10SAE,
>           using integrated Intel graphics (HD P4600, i915 driver),
>           C226 PCH's AHCI and USB 2/3, ASMedia ASM1062 AHCI,
>           Intel LAN (i217, igb driver),
>           several IEEE 1394 controllers, some of them behind
>           PCIe bridges (IDT, PLX) or PCIe-to-PCI bridges (TI, Tundra)
>           and one PCI-to-CardBus bridge (Ricoh)
> 
> kernel.org kernel, Gentoo Linux userland
> 
> 1. known good:  v4.5-rc5 (gcc 4.9.3)
>    known bad:   v4.6-rc2 (gcc 4.9.3), only tried one time
> 
> 2. known good:  v4.5.2 (gcc 5.2.0)
>    known bad:   v4.6-rc5 (gcc 5.2.0), only tried one time
> 
> I will send my linux-4.6-rc5/.config in a follow-up message.
> 
> In theory I could collect more info (simplify the hardware, run
> netconsole, bisect).  In practice I cannot do so for the the time being
> due to lack of spare time.  That's also the reason why I did not already
> send a report when I tested v4.6-rc2, and why I did not boot v4.6-rc[25]
> more than once yet.

Today I booted a 2nd time into v4.6-rc5, and loaded netconsole shortly
after boot and xdm login to try capturing an oops.  But throughout 5 hours
uptime now, the hang was not reproduced.
-- 
Stefan Richter
-======----- -=-- ==-==
http://arcgraph.de/sr/