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Date:      Sat, 15 Feb 2020 20:23:01 +0100
From:      Gary Jennejohn <gljennjohn@gmail.com>
To:        Lev Serebryakov <lev@FreeBSD.org>
Cc:        Yasuhiro KIMURA <yasu@utahime.org>, current@freebsd.org
Subject:   Re: CURRENT panciks right after kernel load (r357966)
Message-ID:  <20200215202301.063d5925@ernst.home>
In-Reply-To: <18510168839.20200215220039@serebryakov.spb.ru>
References:  <241831336.20200215205415@serebryakov.spb.ru> <20200216.035425.109467890875423496.yasu@utahime.org> <18510168839.20200215220039@serebryakov.spb.ru>

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On Sat, 15 Feb 2020 22:00:39 +0300
Lev Serebryakov <lev@FreeBSD.org> wrote:

> Hello Yasuhiro,
> 
> Saturday, February 15, 2020, 9:54:25 PM, you wrote:
> 
> >>   CURRENT r357966 on amd64, on host with 4G of memory (and Atom CPU) panics
> >> with page fault right after kernel load (before any kernel output).  
> 
> > I tried kernel update from r357653 to r357969 and boot completes
> > successfully. My environment is guest of VirtualBox on Windows, 4 CPUs
> > and 8GB of memory. And root is ZFS.  
>  My image boots in VB too. But it panics with page fault
> on real hardware. Hardware is know to be good, as it runs r349299
> rock-solid for days under load.
> 

I just booted r357967 with no panic on a Ryzen 5 system with 16GB RAM.

I would guess that the error is caused by a change which somehow pessimizes
the Atom CPU.

-- 
Gary Jennejohn



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