Re: kern/51102: ipintr may double-release mutex?

[Ryota Ozaki <ozaki-r%NetBSD.org@localhost>]

The following reply was made to PR kern/51102; it has been noted by GNATS.

From: Ryota Ozaki <ozaki-r%NetBSD.org@localhost>
To: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>
Cc: netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost
Subject: Re: kern/51102: ipintr may double-release mutex?
Date: Sat, 30 Apr 2016 20:33:18 +0900

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 Can you try LOCKDEBUG?
 
   ozaki-r
 
 2016/04/29 7:50 pm <martin%netbsd.org@localhost>:
 >
 > >Number:         51102
 > >Category:       kern
 > >Synopsis:       ipintr may double-release mutex?
 > >Confidential:   no
 > >Severity:       critical
 > >Priority:       high
 > >Responsible:    kern-bug-people
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Fri Apr 29 10:50:00 +0000 2016
 > >Originator:     Martin Husemann
 > >Release:        NetBSD 7.99.29
 > >Organization:
 > The NetBSD Foundation, Inc.
 > >Environment:
 > System: NetBSD whoever-brings-the-night.aprisoft.de 7.99.29 NetBSD
 7.99.29 (WHOEVER) #5: Fri Apr 29 10:19:22 CEST 2016
 martin%martins.aprisoft.de@localhost:/ssd/src/sys/arch/sparc64/compile/WHOEVER sparc64
 > Architecture: sparc64
 > Machine: sparc64
 > >Description:
 >
 > I got a KASSERT failing:
 >
 > panic: kernel diagnostic assertion "curcpu()->ci_mtx_count == 0" failed:
 file "../../../../kern/kern_softint.c", line 594 softint_execute:
 ci_mtx_count (-1) != 0, sh_func 0x12ff2a0
 >
 > and sh_func (0x12ff2a0) is ipintr.
 >
 > Backtrace is:
 >
 > #2  0x000000000153c63c in vpanic ()
 > #3  0x000000000162d05c in kern_assert ()
 > #4  0x00000000015114a8 in softint_dispatch ()
 > #5  0x0000000001012014 in softint_fastintr ()
 > #6  0x0000000001510ad8 in softint_schedule ()
 >
 >
 > >How-To-Repeat:
 > n/a
 >
 > >Fix:
 > n/a
 >
 
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 <p dir=3D"ltr">Can you try LOCKDEBUG?</p>
 <p dir=3D"ltr">=C2=A0 ozaki-r</p>
 <p dir=3D"ltr">2016/04/29 7:50 pm &lt;<a href=3D"mailto:martin%netbsd.org@localhost";>=
 martin%netbsd.org@localhost</a>&gt;:<br>
 &gt;<br>
 &gt; &gt;Number:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A051102<br>
 &gt; &gt;Category:=C2=A0 =C2=A0 =C2=A0 =C2=A0kern<br>
 &gt; &gt;Synopsis:=C2=A0 =C2=A0 =C2=A0 =C2=A0ipintr may double-release mute=
 x?<br>
 &gt; &gt;Confidential:=C2=A0 =C2=A0no<br>
 &gt; &gt;Severity:=C2=A0 =C2=A0 =C2=A0 =C2=A0critical<br>
 &gt; &gt;Priority:=C2=A0 =C2=A0 =C2=A0 =C2=A0high<br>
 &gt; &gt;Responsible:=C2=A0 =C2=A0 kern-bug-people<br>
 &gt; &gt;State:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 open<br>
 &gt; &gt;Class:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sw-bug<br>
 &gt; &gt;Submitter-Id:=C2=A0 =C2=A0net<br>
 &gt; &gt;Arrival-Date:=C2=A0 =C2=A0Fri Apr 29 10:50:00 +0000 2016<br>
 &gt; &gt;Originator:=C2=A0 =C2=A0 =C2=A0Martin Husemann<br>
 &gt; &gt;Release:=C2=A0 =C2=A0 =C2=A0 =C2=A0 NetBSD 7.99.29<br>
 &gt; &gt;Organization:<br>
 &gt; The NetBSD Foundation, Inc.<br>
 &gt; &gt;Environment:<br>
 &gt; System: NetBSD <a href=3D"http://whoever-brings-the-night.aprisoft.de"=
 >whoever-brings-the-night.aprisoft.de</a> 7.99.29 NetBSD 7.99.29 (WHOEVER) =
 #5: Fri Apr 29 10:19:22 CEST 2016 martin%martins.aprisoft.de@localhost:/ssd/src/sys/a=
 rch/sparc64/compile/WHOEVER sparc64<br>
 &gt; Architecture: sparc64<br>
 &gt; Machine: sparc64<br>
 &gt; &gt;Description:<br>
 &gt;<br>
 &gt; I got a KASSERT failing:<br>
 &gt;<br>
 &gt; panic: kernel diagnostic assertion &quot;curcpu()-&gt;ci_mtx_count =3D=
 =3D 0&quot; failed: file &quot;../../../../kern/kern_softint.c&quot;, line =
 594 softint_execute: ci_mtx_count (-1) !=3D 0, sh_func 0x12ff2a0<br>
 &gt;<br>
 &gt; and sh_func (0x12ff2a0) is ipintr.<br>
 &gt;<br>
 &gt; Backtrace is:<br>
 &gt;<br>
 &gt; #2=C2=A0 0x000000000153c63c in vpanic ()<br>
 &gt; #3=C2=A0 0x000000000162d05c in kern_assert ()<br>
 &gt; #4=C2=A0 0x00000000015114a8 in softint_dispatch ()<br>
 &gt; #5=C2=A0 0x0000000001012014 in softint_fastintr ()<br>
 &gt; #6=C2=A0 0x0000000001510ad8 in softint_schedule ()<br>
 &gt;<br>
 &gt;<br>
 &gt; &gt;How-To-Repeat:<br>
 &gt; n/a<br>
 &gt;<br>
 &gt; &gt;Fix:<br>
 &gt; n/a<br>
 &gt;<br>
 </p>
 
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