NetBSD Problem Report #51980

From martin@duskware.de  Fri Feb 17 18:59:44 2017
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From: martin@NetBSD.org
Reply-To: martin@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: crash in filt_sordetach
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>Number:         51980
>Category:       kern
>Synopsis:       crash in filt_sordetach
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 17 19:00:00 +0000 2017
>Closed-Date:    Sun Jun 03 07:12:57 +0000 2018
>Last-Modified:  Sun Jun 03 07:12:57 +0000 2018
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.60
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-owl.duskware.de 7.99.60 NetBSD 7.99.60 (NIGHT-OWL) #483: Fri Feb 17 13:49:36 CET 2017 martin@night-owl.duskware.de:/usr/src/sys/arch/amd64/compile/NIGHT-OWL amd64
Architecture: x86_64
Machine: amd64
>Description:

While running a build.sh (with high enough -j to load it pretty good)
my machine paniced:
(manual transscript)

kernel: page fault trap, code=8
Stopped in pid 171.2 (xfsettingsd) at netbsd:filt_sordetach+0x3f movq 8(%rdx),%rax

backtrace:

filt_sordetach()+0x3f
knote_detach()+0x70
kevent1()+0x686
sys____kevent50+0x33


>How-To-Repeat:
n/a

>Fix:
n/a

>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->closed
State-Changed-By: maya@NetBSD.org
State-Changed-When: Sun, 03 Jun 2018 07:12:57 +0000
State-Changed-Why:
Guessing again this is the kevent race Go used to trigger, feel free to re-open if you can still trigger this problem or believe it hasn't been fixed.


>Unformatted:

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