linux-kernel - Early boot hang on i5-660 in todays 4.9-rc6+git (gcc 6.2 trouble?)

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Message-ID: <alpine.LRH.2.20.1611241558080.6998@math.ut.ee>
Date:   Thu, 24 Nov 2016 22:55:07 +0200 (EET)
From:   Meelis Roos <mroos@...ux.ee>
To:     Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Early boot hang on i5-660 in todays 4.9-rc6+git (gcc 6.2 trouble?)

I tried todays 4.9.0-rc6-00133-g10b9dd5 on my Ironlake i5 PC (HP Compaq 
8100 Elite SFF PC with i5 660 CPU). The booting hangs after "Booting the 
kernel." line, no lines from the kernel at all.

4.9.0-rc6-00113-g23400ac was working fine.

Bisecting shows all tested kernels are bad so maybe something else 
broke...

gcc was upgraded meanwhile, working kernel was compiled with 6.2.0-13, 
current one is 6.2.1-4. 

Tested v4.9-rc6-111-gb66c08b (one before last known good) with gcc 
6.2.1, still hangs, this confirms th bad bisect.

So, Debians gcc-6 6.2.1-4 + current kernel results in nonbootable 
kernels.

-- 
Meelis Roos (mroos@...ux.ee)