Looks a lot like 6894901.  Can you try build 128?

-Steve

On Fri, Dec 11, 2009 at 03:48:52PM -0500, Glenn Brunette wrote:
>
> As part of some Immutable Service Container[1] demonstration that I am
> creating for an event in January.  I have the need to start/stop a zone
> quite a few times (as part of a Self-Cleansing[2] demo).  During the
> course of my testing, I have been able to repeatedly get zoneadm to
> hang.
>
> Since I am working with a highly customized configuration, I started
> over with a default zone on OpenSolaris (b127) and was able to repeat
> this issue.  To reproduce this problem use the following script after
> creating a zone usual the normal/default steps:
>
> isc...@osol-isc:~$ while : ; do
> > echo "`date`: ZONE BOOT"
> > pfexec zoneadm -z test boot
> > sleep 30
> > pfexec zoneamd -z test halt
> > echo "`date`: ZONE HALT"
> > sleep 10
> > done
>
> This script works just fine for a while, but eventually zoneadm hangs
> (was at pass #90 in my last test).  When this happens, zoneadm is shown
> to be consuming quite a bit of CPU:
>
>    PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP 
>
>  16598 root       11M 3140K run      1    0   0:54:49  74% zoneadm/1
>
>
> A stack trace of zoneadm shows:
>
> isc...@osol-isc:~$ pfexec pstack `pgrep zoneadm`
> 16082:        zoneadmd -z test
> -----------------  lwp# 1  --------------------------------
> -----------------  lwp# 2  --------------------------------
>  feef41c6 door     (0, 0, 0, 0, 0, 8)
>  feed99f7 door_unref_func (3ed2, fef81000, fe33efe8, feeee39e) + 67
>  feeee3f3 _thrp_setup (fe5b0a00) + 9b
>  feeee680 _lwp_start (fe5b0a00, 0, 0, 0, 0, 0)
> -----------------  lwp# 3  --------------------------------
>  feef420f __door_return () + 2f
> -----------------  lwp# 4  --------------------------------
>  feef420f door     (0, 0, 0, fe140e00, f5f00, a)
>  feed9f57 door_create_func (0, fef81000, fe140fe8, feeee39e) + 2f
>  feeee3f3 _thrp_setup (fe5b1a00) + 9b
>  feeee680 _lwp_start (fe5b1a00, 0, 0, 0, 0, 0)
> 16598:        zoneadm -z test boot
>  feef3fc8 door     (6, 80476d0, 0, 0, 0, 3)
>  feede653 door_call (6, 80476d0, 400, fe3d43f7) + 7b
>  fe3d44f0 zonecfg_call_zoneadmd (8047e33, 8047730, 8078448, 1) + 124
>  0805792d boot_func (0, 8047d74, 100, 805ff0b) + 1cd
>  08060125 main     (4, 8047d64, 8047d78, 805570f) + 2b9
>  0805576d _start   (4, 8047e28, 8047e30, 8047e33, 8047e38, 0) + 7d
>
>
> A stack trace of zoneadmd shows:
>
> isc...@osol-isc:~$ pfexec pstack `pgrep zoneadmd`
> 16082:        zoneadmd -z test
> -----------------  lwp# 1  --------------------------------
> -----------------  lwp# 2  --------------------------------
>  feef41c6 door     (0, 0, 0, 0, 0, 8)
>  feed99f7 door_unref_func (3ed2, fef81000, fe33efe8, feeee39e) + 67
>  feeee3f3 _thrp_setup (fe5b0a00) + 9b
>  feeee680 _lwp_start (fe5b0a00, 0, 0, 0, 0, 0)
> -----------------  lwp# 3  --------------------------------
>  feef4147 __door_ucred (80a37c8, fef81000, fe23e838, feed9cfe) + 27
>  feed9d0d door_ucred (fe23f870, 1000, 0, 0) + 32
>  08058a88 server   (0, fe23f8f0, 510, 0, 0, 8058a04) + 84
>  feef4240 __door_return () + 60
> -----------------  lwp# 4  --------------------------------
>  feef420f door     (0, 0, 0, fe140e00, f5f00, a)
>  feed9f57 door_create_func (0, fef81000, fe140fe8, feeee39e) + 2f
>  feeee3f3 _thrp_setup (fe5b1a00) + 9b
>  feeee680 _lwp_start (fe5b1a00, 0, 0, 0, 0, 0)
>
>
> A truss of zoneadm (-f -vall -wall -tall) shows this looping:
>
> 16598:  door_call(6, 0x080476D0)                        = 0
> 16598:          data_ptr=8047730 data_size=0
> 16598:          desc_ptr=0x0 desc_num=0
> 16598:          rbuf=0x807F2D8 rsize=4096
> 16598:  close(6)                                        = 0
> 16598:  mkdir("/var/run/zones", 0700)                   Err#17 EEXIST
> 16598:  chmod("/var/run/zones", 0700)                   = 0
> 16598:  open("/var/run/zones/test.zoneadm.lock", O_RDWR|O_CREAT, 0600) = 6
> 16598:  fcntl(6, F_SETLKW, 0x08046DC0)                  = 0
> 16598:          typ=F_WRLCK  whence=SEEK_SET start=0     len=0  
> sys=4277003009 pid=6
> 16598:  open("/var/run/zones/test.zoneadmd_door", O_RDONLY) = 7
> 16598:  door_info(7, 0x08047230)                        = 0
> 16598:          target=16082 proc=0x8058A04 data=0x0
> 16598:          attributes=DOOR_UNREF|DOOR_REFUSE_DESC|DOOR_NO_CANCEL
> 16598:          uniquifier=26426
> 16598:  close(7)                                        = 0
> 16598:  close(6)                                        = 0
> 16598:  open("/var/run/zones/test.zoneadmd_door", O_RDONLY) = 6
> 16082/3:        door_return(0x00000000, 0, 0x00000000, 0xFE23FE00,  
> 1007360) = 0
> 16082/3:        door_ucred(0x080A37C8)                          = 0
> 16082/3:                euid=0 egid=0
> 16082/3:                ruid=0 rgid=0
> 16082/3:                pid=16598 zoneid=0
> 16082/3:                E: all
> 16082/3:                I: basic
> 16082/3:                P: all
> 16082/3:                L: all
>
>
> PID 16598 is zoneadm and PID 16082 is zoneadmd.
>
>
> Is this a known issue?  Are there any other things that I can do to
> help debug this situation?  Once things get into this state, I have
> only been able to recover by rebooting the zone.
>
>
>
> Please advise.
>
> g
>
>
> [1] http://kenai.com/projects/isc/pages/OpenSolaris
> [2]  
> http://kenai.com/attachments/wiki_images/isc/isc-autonomic-cleansing-time-v1.3.png
> _______________________________________________
> zones-discuss mailing list
> zones-discuss@opensolaris.org
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