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Date: Mon, 24 Jul 2000 22:03:01 -0700 (PDT)
From: zensyo@ann.tama.kawasaki.jp
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/20167: Problem with RPC on jail(8) in 4.0-RELEASE and 4.0-STABLE
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>Number:         20167
>Category:       kern
>Synopsis:       Problem with RPC on jail(8) in 4.0-RELEASE and 4.0-STABLE
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 24 22:10:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Yoshiaki Suzuki
>Release:        4.0-STABLE/RELEASE
>Organization:
ANN-NET
>Environment:
FreeBSD ns.ann.tama.kawasaki.jp 4.0-STABLE FreeBSD 4.0-STABLE #0: Sun Jul 23 23:
02:33 JST 2000     zroot@ns.ann.tama.kawasaki.jp:/usr/src/sys/compile/INETD  i38

>Description:
Some command that imprimented by RPC takes kernel panic. For example, When run following command on jail enviroment,
your kernel will panic.

rusers -l localhost


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x0
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc017827d
stack pointer           = 0x10:0xcfededf8
frame pointer           = 0x10:0xcfededfc
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 2054 (rusers)
interrupt mask          =
trap number             = 12
panic: page fault

In another case, popper which use DRAC(for POP before SMTP)  takes same problem. DRAC patch for popper using RPC.
And, I found similer problem on GNATS database at misc/19839.

>How-To-Repeat:
Any time, please run command rusers -l localhost on jail enviroment.
May be any program that using RPC takes same probrem.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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