NetBSD Problem Report #41288

From taca@back-street.net  Mon Apr 27 15:18:45 2009
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Date: Tue, 28 Apr 2009 00:18:32 +0900 (JST)
From: taca@back-street.net
Reply-To: taca@back-street.net
To: gnats-bugs@gnats.NetBSD.org
Subject: FreeBSD emulation stop working
X-Send-Pr-Version: 3.95

>Number:         41288
>Category:       kern
>Synopsis:       FreeBSD emulation stop working
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Apr 27 15:20:00 +0000 2009
>Closed-Date:    Sat Feb 10 08:56:31 +0000 2018
>Last-Modified:  Sat Feb 10 08:56:31 +0000 2018
>Originator:     Takahiro Kambe
>Release:        NetBSD 5.99.11
>Organization:
Takahiro Kambe
>Environment:


System: NetBSD edge.back-street.net 5.99.11 NetBSD 5.99.11 (CF-R) #206: Fri Apr 24 22:45:34 JST 2009 taca@reef.back-street.net:/var/obj/sys/arch/i386/compile/CF-R i386
Architecture: i386
Machine: i386
>Description:
	FreeBSD emulation stop working.
>How-To-Repeat:
	Run FreeBSD binary.

	Here is ktraced output.  dpkeyserv is statically linked FreeBSD
	binary.  It was worked at least 5.99.9.

   413      1 ktrace   EMUL  "netbsd"
   413      1 ktrace   RET   ktrace 0
   413      1 ktrace   CALL  execve(0xbfbff8df,0xbfbfe7bc,0xbfbfe7c4)
   413      1 ktrace   NAMI  "/usr/local/bin/Dp/dpkeyserv"
   413      1 dpkeyserv NAMI  "/emul/freebsd"
   413      1 dpkeyserv EMUL  "freebsd"
   413      1 dpkeyserv RET   syscall JUSTRETURN
   413      1 dpkeyserv CALL  open(0xbfbff558,0,0x1b6)
   413      1 dpkeyserv NAMI  "/emul/freebsd/usr/jp/lib/dp/dpkeylist"
   413      1 dpkeyserv NAMI  "/usr/jp/lib/dp/dpkeylist"
   413      1 dpkeyserv RET   open -1 errno 2 No such file or directory
   413      1 dpkeyserv PSIG  SIGSEGV SIG_DFL: code=SEGV_ACCERR, addr=0x27f98, trap=4)
   413      1 dpkeyserv NAMI  "dpkeyserv.core"

>Fix:
	Unknown.

>Release-Note:

>Audit-Trail:
From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/41288: FreeBSD emulation stop working
Date: Wed, 31 Mar 2010 03:01:33 +0000

 (send to gnats-admin instead of gnats-bugs)

    ------

 From: Takahiro Kambe <taca@back-street.net>
 To: gnats-admin@netbsd.org
 Subject: Re: kern/41288: FreeBSD emulation stop working
 Date: Fri, 26 Mar 2010 00:46:18 +0900 (JST)

 I found that this problem happened by processing shared libraries of
 FreeBSD.

 Here is dynamic linked program:

 % ktrace -di -t A ./motd
   2080      1 ktrace   EMUL  "netbsd"
   2080      1 ktrace   RET   ktrace 0
   2080      1 ktrace   CALL  execve(0xbfbffca8,0xbfbfeb7c,0xbfbfeb84)
   2080      1 ktrace   NAMI  "./motd"
   2080      1 ktrace   CSW   stop kernel
   2080      1 ktrace   CSW   resume kernel
   2080      1 ktrace   ARG   "./motd"
   2080      1 ktrace   ENV   "XMODIFIERS=@im=uim"
   2080      1 ktrace   ENV   "PWD=/data/tmp/freebsd228"
 ...
   2080      1 ktrace   ENV   "PAGER=less"
   2080      1 ktrace   ENV   "EDITOR=vi"
   2080      1 ktrace   ENV   "_=/usr/bin/ktrace"
   2080      1 motd     NAMI  "/emul/freebsd"
   2080      1 motd     EMUL  "freebsd"
   2080      1 motd     RET   syscall JUSTRETURN
   2080      1 motd     CALL  open(0x109c,0,0)
   2080      1 motd     NAMI  "/emul/freebsd/usr/libexec/ld.so"
   2080      1 motd     RET   open 3, -1077937132/0xbfbffc14
   2080      1 motd     PSIG  SIGSEGV SIG_DFL: code=SEGV_MAPERR, addr=0x3, trap=6)
   2080      1 motd     NAMI  "motd.core"
   2080      1 motd     CSW   stop kernel
   2080      1 motd     CSW   resume kernel
   2080      1 motd     CSW   stop kernel
   2080      1 motd     CSW   resume kernel
 [2]    2743 segmentation fault (core dumped)  ktrace -id -t A ./motd

 When the same program which statically linked on FreeBSD:

 % ktrace -id -t A ./motd.static
 % kdump
   3323      1 ktrace   EMUL  "netbsd"
   3323      1 ktrace   RET   ktrace 0
   3323      1 ktrace   CALL  execve(0xbfbffca4,0xbfbfeb78,0xbfbfeb80)
   3323      1 ktrace   NAMI  "./motd.static"
   3323      1 ktrace   ARG   "./motd.static"
   3323      1 ktrace   ENV   "XMODIFIERS=@im=uim"
   3323      1 ktrace   ENV   "PWD=/data/tmp/freebsd228"
 ...
   3323      1 ktrace   ENV   "PAGER=less"
   3323      1 ktrace   ENV   "EDITOR=vi"
   3323      1 ktrace   ENV   "_=/usr/bin/ktrace"
   3323      1 motd.static NAMI  "/emul/freebsd"
   3323      1 motd.static EMUL  "freebsd"
   3323      1 motd.static RET   syscall JUSTRETURN
   3323      1 motd.static CALL  open(0x10c0,0,0)
   3323      1 motd.static NAMI  "/emul/freebsd/etc/motd"
   3323      1 motd.static RET   open 3, 8284/0x205c
   3323      1 motd.static CALL  close(3)
   3323      1 motd.static RET   close 0, 8284/0x205c
   3323      1 motd.static CALL  exit(0)

 This program simply open /etc/motd, close it and end.

 -- 
 Takahiro Kambe <taca@back-street.net>

From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/41288: FreeBSD emulation stop working
Date: Wed, 31 Mar 2010 03:32:29 +0000

 On Wed, Mar 31, 2010 at 03:05:06AM +0000, David Holland wrote:
  >  (send to gnats-admin instead of gnats-bugs)

 er, "sent". (Do *not* send (only) to gnats-admin...)

 -- 
 David A. Holland
 dholland@netbsd.org

From: Takahiro Kambe <taca@back-street.net>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/41288: FreeBSD emulation stop working
Date: Wed, 31 Mar 2010 12:45:51 +0900 (JST)

 Hi,

 In message <20100331033502.62CE063B11D@www.NetBSD.org>
 	on Wed, 31 Mar 2010 03:35:02 +0000 (UTC),
 	David Holland <dholland-bugs@netbsd.org> wrote:
 >  On Wed, Mar 31, 2010 at 03:05:06AM +0000, David Holland wrote:
 >   >  (send to gnats-admin instead of gnats-bugs)
 >  
 >  er, "sent". (Do *not* send (only) to gnats-admin...)
 I'm sorry for it.

 Best regards.

 -- 
 Takahiro Kambe <taca@back-street.net>

From: Takahiro Kambe <taca@back-street.net>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/41288: FreeBSD emulation stop working
Date: Wed, 31 Mar 2010 12:48:48 +0900 (JST)

 Here are cleaner ktruss's output.

 % ktruss ./motd.static 
  11314      1 ktruss   fktrace                     = 0
  11314      1 ktruss   emul(netbsd)
  11314      1 ktruss   fcntl(0x4, 0x3, 0)          = 1
  11314      1 ktruss   fcntl(0x4, 0x4, 0x1)        = 0
  11314      1 motd.static execve("./motd.static", 0xbfbfeae4, 0xbfbfeaec) JUSTRETURN
  11314      1 motd.static emul(freebsd)
  11314      1 motd.static open("/emul/freebsd/etc/motd", 0, 0) = 3, 8284
  11314      1 motd.static close(0x3)               = 0, 8284
  11314      1 motd.static exit(0)

 % ktruss ./motd       
  18519      1 ktruss   fktrace                     = 0
  18519      1 ktruss   emul(netbsd)
  18519      1 ktruss   fcntl(0x4, 0x3, 0)          = 1
  18519      1 ktruss   fcntl(0x4, 0x4, 0x1)        = 0
  18519      1 motd     execve("./motd", 0xbfbfeaec, 0xbfbfeaf4) JUSTRETURN
  18519      1 motd     emul(freebsd)
  18519      1 motd     open("/emul/freebsd/usr/libexec/ld.so", 0, 0) = 3, -1077937288
  18519      1 motd     SIGSEGV SIG_DFL

 % uname -rs
 NetBSD 5.99.24

 Best regards.

 -- 
 Takahiro Kambe <taca@back-street.net>

From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/41288: FreeBSD emulation stop working
Date: Wed, 31 Mar 2010 04:52:57 +0000

 On Wed, Mar 31, 2010 at 03:50:05AM +0000, Takahiro Kambe wrote:
  >  >  er, "sent". (Do *not* send (only) to gnats-admin...)
  >  I'm sorry for it.

 It's not a problem as such, it's just that mail to gnats-admin doesn't
 get filed in the database and sometimes doesn't get seen at all.

 -- 
 David A. Holland
 dholland@netbsd.org

State-Changed-From-To: open->closed
State-Changed-By: maxv@NetBSD.org
State-Changed-When: Sat, 10 Feb 2018 08:56:31 +0000
State-Changed-Why:
Close this PR. compat_freebsd is not maintained anymore, and we keep the
code only for tw_cli (which is tested, and does work). I've updated the
man page to explicitly say that.


>Unformatted:

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