linux-kernel - Re: gcc crashes with general protection faults in 5.9.0-rc3-00091-ge28f0104343d

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Message-ID: <95c6539f-1c32-5caa-ce0f-e4a5e9859c56@linux.ee>
Date:   Fri, 11 Sep 2020 16:44:57 +0300
From:   Meelis Roos <mroos@...ux.ee>
To:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: gcc crashes with general protection faults in
 5.9.0-rc3-00091-ge28f0104343d

Replying to myself:
>> This is 5.9.0-rc3-00091-ge28f0104343d on Lenovo t460s that has ran fine up to 5.8.0.
> 
> Now I reproduced the same problem with 5.9.0-rc3 on a HP desktop with Core2Quad CPU. The call trace is very similar and it's crashing gcc again while compiling 5.9-rc4.
> 
> But it seems 5.9-rc4 cures it here as well - whatever the reason might have been.
Nope, the reason was nondeterminism - it happened on the Core2Quad running 5.9-rc4 while trying to compile todays Linux from git.

-- 
Meelis Roos <mroos@...ux.ee>