On Sun, 17 Aug 2008 09:04:35 -0500, Chase, John wrote:
>Hi, All,
>
>Running a "smoke test" of z/OS 1.9 on the Prod LPAR, and getting
>intermittent S0F8-04 abends in TN3270. No hits on IBMLink for this.
>
>"System Codes" manual says:
>
>"The issuer [of an SVC instruction] was in a mode other than task
>control block (TCB) mode."
>
>Any ideas, while we open a PMR?
Well, nobody replied, so it must be a new problem. For our z/OS 1.9 rollout
attempt yesterday, it was a show-stopper. The effect on end-users is that
they are unable to connect to the system at all.
Empirical evidence suggests that this situation affects only tn3270 clients
assigned to an LU pool for which we don't specify a default LOGAPPL. This is
consistent with IBM's analysis so far of our dump from last week, in which
they have determined that the abending task was trying to send the
USSMSG10 buffer to the connecting client. Adding to the puzzle is the fact
that clients assigned to an LU pool that -does- have a default LOGAPPL can,
upon exit from that application, display the (same) USSMSG10 without problem.
I'll try to keep the list updated with progress from our PMR.
-jc-
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