NetBSD Problem Report #55316
From gson@gson.org Fri May 29 15:52:00 2020
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Date: Fri, 29 May 2020 18:51:54 +0300 (EEST)
From: gson@gson.org (Andreas Gustafsson)
Reply-To: gson@gson.org (Andreas Gustafsson)
To: gnats-bugs@NetBSD.org
Subject: sparc reports "panic: crazy interrupts" after serial break
X-Send-Pr-Version: 3.95
>Number: 55316
>Category: port-sparc
>Synopsis: sparc reports "panic: crazy interrupts" after serial break
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: port-sparc-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri May 29 15:55:00 +0000 2020
>Last-Modified: Fri Apr 01 13:20:01 +0000 2022
>Originator: Andreas Gustafsson
>Release: NetBSD-current, source date 2020.05.17.19.34.07
>Organization:
>Environment:
System: NetBSD
Architecture: sparc
Machine: sparc
>Description:
When I run NetBSD-current/sparc in qemu with a serial console and
send a break sequence by typing "control-a b", I get output like
this:
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] stray interrupt cpu0 ipl 0xc pc=0x31a6c npc=0x31a70 psr=0x4401083<EF,S>
[ 23.8931665] panic: crazy interrupts
[ 23.8931665] cpu0: Begin traceback...
[ 23.8931665] 0x0(0xf046c550, 0xf052f2f8, 0xf056bc00, 0xf056cc00, 0x104, 0xf056cae0) at netbsd:panic+0x20
[ 23.8931665] panic(0xf046c550, 0x0, 0xc, 0x31a6c, 0x31a70, 0xf052f310) at netbsd:strayintr+0xa4
[ 23.8931665] strayintr(0xf052f3b0, 0xf0013b64, 0xf00, 0x48010a3, 0x0, 0x17) at netbsd:sparc_interrupt44c+0x168
[ 23.8931665] cpu0: End traceback...
[ 23.8931665] Frame pointer is at 0xf052f0b0
[ 23.8931665] Call traceback:
[ 23.8931665] pc = 0xf002cc94 args = (0xf056cc7c, 0xf048f8d8, 0xf052f1d0, 0xf04b3400, 0x168, 0xf0548400) fp = 0xf052f120
[ 23.8931665] pc = 0xf02de010 args = (0x104, 0x0, 0xf08b3d00, 0x0, 0x4401fe7, 0xf056a000) fp = 0xf052f188
[ 23.8931665] pc = 0xf031d9b8 args = (0x104, 0x0, 0xf046c550, 0xf052f2f8, 0x0, 0xf0002000) fp = 0xf052f1e8
[ 23.8931665] pc = 0xf031da64 args = (0xf046c550, 0xf052f2f8, 0xf056bc00, 0xf056cc00, 0x104, 0xf056cae0) fp = 0xf052f248
[ 23.8931665] pc = 0xf002a6d0 args = (0xf046c550, 0x0, 0xc, 0x31a6c, 0x31a70, 0xf052f310) fp = 0xf052f2b0
[ 23.8931665] pc = 0xf0008cc0 args = (0xf052f3b0, 0xf0013b64, 0xf00, 0x48010a3, 0x0, 0x17) fp = 0xf052f350
[ 23.8931665] pc = 0x1ec2c args = (0x1, 0x58, 0x0, 0x0, 0x1c, 0xed964074) fp = 0xeffff6d0
[ 23.8931665] dumping to dev 7,1 offset 164063
[ 23.8931665] dump succeeded
[ 23.8931665] rebooting
I don't know if this is a NetBSD bug or a qemu bug. I have tried the
following combinations of qemu version and NetBSD version, and they
all panic:
qemu-5.0.0nb4, -current
qemu-5.0.0nb4, 7.2
qemu-3.1.0nb1, -current
>How-To-Repeat:
anita interact http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/images/NetBSD-9.99.64-sparc.iso
(wait for login prompt)
<control-a>
>Fix:
>Audit-Trail:
From: "John D. Baker" <jdbaker@consolidated.net>
To: gnats-bugs@NetBSD.org
Cc:
Subject: Re: port-sparc/55316: sparc reports "panic: crazy interrupts" after
serial break
Date: Fri, 29 May 2020 14:34:54 -0500 (CDT)
I just booted a real SPARCstation (5, 110MHz) with 9.99.64 from sources
around 26 May 2020 and sending a BREAK to the serial console ('cu -9600
-l dty00' on netbsd-9/amd64 host) drops into DDB as expected.
Points to possible QEMU issue?
--
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From: Andreas Gustafsson <gson@gson.org>
To: "John D. Baker" <jdbaker@consolidated.net>
Cc: gnats-bugs@netbsd.org
Subject: Re: port-sparc/55316: sparc reports "panic: crazy interrupts" after serial break
Date: Fri, 29 May 2020 22:42:57 +0300
John D. Baker wrote:
> I just booted a real SPARCstation (5, 110MHz) with 9.99.64 from sources
> around 26 May 2020 and sending a BREAK to the serial console ('cu -9600
> -l dty00' on netbsd-9/amd64 host) drops into DDB as expected.
>
> Points to possible QEMU issue?
Yes, it would seem so.
--
Andreas Gustafsson, gson@gson.org
From: Andreas Gustafsson <gson@gson.org>
To: gnats-bugs@netbsd.org
Cc:
Subject: Re: port-sparc/55316: sparc reports "panic: crazy interrupts" after serial break
Date: Fri, 1 Apr 2022 16:17:22 +0300
The problem is still there with qemu 6.2.0 and NetBSD-current of source
date 2022.04.01.06.32.10.
--
Andreas Gustafsson, gson@gson.org
(Contact us)
$NetBSD: query-full-pr,v 1.46 2020/01/03 16:35:01 leot Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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