Phil,

I would say that the symptom you're seeing is a result of the guest being
put on the eligible queue:
LNX401KT      E3 PS  00083225/00083561 LNX401KT MP01 E3 R  00000000/00000000

When that happens, you get what appears to be a system hang, because it
_is_, so to speak.  It's just the VM scheduler doing it, not the guest
itself.

Mark Post

-----Original Message-----
From: Philip J. Tully [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 16, 2002 3:42 PM
To: [EMAIL PROTECTED]
Subject: Re: Hang with SLES7 on z/VM 4.3


No IUCV being used.

Lionel Dyck wrote:
>
> We had a similar problem which was caused by the IUCV driver - so if you
> are using IUCV then you should look for the patch for this was posted on
> this listserv by David Kennedy of Linuxcare not long ago.
>
> hth
> --------------------------------------------------------------------
> Lionel B. Dyck, Systems Software Lead
> Kaiser Permanente Information Technology
> 25 N. Via Monte Ave
> Walnut Creek, Ca 94598
>
> Phone:   (925) 926-5332 (tie line 8/473-5332)
> E-Mail:    [EMAIL PROTECTED]
> Sametime: (use Lotus Notes address)
> AIM:        lbdyck
>
> Linux on 390 Port <[EMAIL PROTECTED]> wrote on 07/16/2002 08:32:35
> AM:
>
> > Hello all,
> >
> > We have experienced a number of hang conditions with Suse 2.4.7 kernel
> > (with timer patch and others applied).
> > After 5-15minutes the problem goes away without any issue but an outage
> > of 5-15 minutes. Below are some displays.
> >
> > Any recommendation where we should look?
> > regards
> > Phil
> >
> > When I look the machine has moved into the eligible list :
> > ind user lnx401kt
> > USERID=LNX401KT MACH=XA  STOR=512M VIRT=V XSTORE=NONE
> > IPLSYS=DEV 0100 DEVNUM=00020
> > PAGES: RES=00083322 WS=00083561 LOCK=00000019 RESVD=00000000
> > NPREF=00047674 PREF=00000000 READS=00063061 WRITES=00071370
> > XSTORE=014629 READS=013553 WRITES=059403 MIGRATES=031221
> > CPU 00: CTIME=21:52 VTIME=008:04 TTIME=008:20 IO=044006
> >         RDR=000000 PRT=000298 PCH=000000
> > USERID=LNX401KT MACH=XA  STOR=512M VIRT=V XSTORE=NONE
> > IPLSYS=DEV NONE DEVNUM=00020
> > PAGES: RES=00083322 WS=00000000 LOCK=00000019 RESVD=00000000
> > NPREF=00047674 PREF=00000000 READS=00063061 WRITES=00071370
> > XSTORE=014629 READS=013553 WRITES=059403 MIGRATES=031221
> > CPU 01: CTIME=21:52 VTIME=007:58 TTIME=008:15 IO=041094
> >         RDR=000000 PRT=000000 PCH=000000
> > Ready; T=0.01/0.01 11:07:48
> >
> >
> > ind queue
> > LNXOSDWN MP01 Q3 PS  00000000/00000000 TXPHIL        Q1 R00
> > 00000204/00000200
> > LINXKEN  MP01 Q3 PS  00000000/00000000 LNXBASE       Q3 IO
> > 00047111/00047057
> > LNXOSDWN      Q3 IO  00030583/00030792 LNXROML       Q3 IO
> > 00109952/00114005
> > LNXDDPCT      Q3 IO  00030378/00030371 LNXDDPCT MP01 Q3 PS
> > 00000000/00000000
> > LNXECSST MP01 Q0 PS  00000000/00000000 LNXNFS        Q3 IO
> > 00111651/00111842
> > TCPIP         Q0 PS  00002200/00001431 LNXROML  MP01 Q3 PS
> > 00000000/00000000
> > LNXDDPC       Q3 R01 00071412/00073308 LNXDDPC  MP01 Q3 R
> > 00000000/00000000
> > LINXKEN       Q3 PS  00007025/00006795 MPROUTE       Q0 PS
> > 00000245/00000221
> > LNXNFS   MP01 Q3 PS  00000000/00000000 LNXECSST      Q0 PS
> > 00007178/00007118
> > LNX401KT      E3 PS  00083225/00083561 LNX401KT MP01 E3 R
> > 00000000/00000000
> > Ready; T=0.01/0.01 11:11:43
> > ind
> > AVGPROC-014% 02
> > XSTORE-000011/SEC MIGRATE-0008/SEC
> > MDC READS-000011/SEC WRITES-000001/SEC HIT RATIO-075%
> > STORAGE-081% PAGING-0011/SEC STEAL-000%
> > Q0-00004(00000)                           DORMANT-00012
> > Q1-00000(00000)           E1-00000(00000)
> > Q2-00000(00000) EXPAN-001 E2-00000(00000)
> > Q3-00014(00000) EXPAN-002 E3-00001(00001)
> > PROC 0000-014%          PROC 0001-015%
> > LIMITED-00000
> > Ready; T=0.01/0.01 11:12:49
> > ind queue
> > LNXOSDWN MP01 Q3 PS  00000000/00000000 TXPHIL        Q1 R00
> > 00000204/00000183
> > LNXECSST MP01 Q0 PS  00000000/00000000 LNXROML       Q3 IO
> > 00109952/00109898
> > LNXROML  MP01 Q3 PS  00000000/00000000 LNXDDPCT      Q3 IO
> > 00030379/00030325
> > LNXBASE       Q3 IO  00047111/00047057 LNXNFS        Q3 IO
> > 00111651/00111842
> > LNXDDPCT MP01 Q3 PS  00000000/00000000 LNXOSDWN      Q3 IO
> > 00030583/00030792
> > TCPIP         Q0 EX  00002204/00001435 LNX401KT MP01 Q3 PS
> > 00000000/00000000
> > LNXDDPC  MP01 Q3 PS  00000000/00000000 LNX401KT      Q3 R01
> > 00083437/00083561
> > LNXDDPC       Q3 R   00071493/00073308 MPROUTE       Q0 PS
> > 00000259/00000235
> > LNXECSST      Q0 PS  00007314/00007248 LNXNFS   MP01 Q3 PS
> > 00000000/00000000
> > LINXKEN       E3 PS  00007056/00007002 LINXKEN  MP01 E3 PS
> > 00000000/00000000
> > Ready; T=0.01/0.01 11:13:32

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