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Date: Thu, 9 Apr 2009 18:03:19 -0700
From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: oleg@redhat.com, linux-kernel Mailing List <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible
	ptrace issue?)
Message-ID: <20090410010319.GA2354@us.ibm.com>
References: <0CA2FBE3-C50C-4503-9134-6DA1C6965743@kernel.crashing.org> <0D4C1952-792C-4AFF-8969-1EF5386FDAB9@kernel.crashing.org> <20090409194912.GA30645@us.ibm.com> <0D6A6388-C12F-4066-84B8-155381D14504@kernel.crashing.org> <20090409213910.GB30645@us.ibm.com> <B6C30A35-DBF7-4710-9F03-9E42775CDA21@kernel.crashing.org>
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>
> -bash-3.2# ps
>  PID TTY          TIME CMD
> 2289 ttyS0    00:00:00 bash
> 2310 ttyS0    00:00:00 runltp
> 2412 ttyS0    00:00:00 pan
> 2448 ttyS0    00:00:00 recv01 <defunct>
> 2450 ttyS0    00:00:00 recvfrom01 <defunct>
> 2452 ttyS0    00:00:00 recvmsg01 <defunct>
> 2473 ttyS0    00:00:00 rename14
> 2474 ttyS0    00:00:01 rename14
> 2477 ttyS0    00:00:00 rename14
> 2481 ttyS0    00:00:00 ps
> -bash-3.2# cat /proc/1/status
> Name:   init
> State:  T (stopped)

init is in the stopped state.  Can you run "kill -CONT 1" ?

> Tgid:   1
> Pid:    1
> PPid:   0
> TracerPid:      0
> Uid:    0       0       0       0
> Gid:    0       0       0       0
> FDSize: 32
> Groups:
> VmPeak:     1948 kB
> VmSize:     1944 kB
> VmLck:         0 kB
> VmHWM:       648 kB
> VmRSS:       648 kB
> VmData:      164 kB
> VmStk:        84 kB
> VmExe:       288 kB
> VmLib:      1124 kB
> VmPTE:        20 kB
> Threads:        1
> SigQ:   8/16384
> SigPnd: 0000000000000000
> ShdPnd: 0000000000010000

Init does have the pending SIGCHLD, so the zombies should go away 
when init gets the SIGCONT.
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