IBM Support

Service bulletin 224: Persistent DASD error might require an IPL with APAR PJ46684 applied

Preventive Service Planning


Abstract

With APAR PJ46684 applied, a persistent DASD error can cause a stalled module queue that requires an IPL to recover the device.  Apply APAR PJ48180 to resolve this issue.

Content

With APAR PJ46684, when a lost interrupt is processed, the CIO lost interrupt facility timeout value is set to zero when the clear subchannel (CSCH) completion routine returns to complete processing. With that value set to 0, CIO lost interrupt facility recovery is disabled. If the original DASD error is persistent, the module queue becomes stalled.  Messages that indicate that the module queue is stalled are sent continuously and the only way to restart the module queue and stop the messages is to IPL the z/TPF system. Apply APAR PJ48180 to resolve this issue.

For more information, see the PJ48180 APEDIT.

[{"Type":"MASTER","Line of Business":{"code":"LOB70","label":"Z TPS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSZL53","label":"z\/Transaction Processing Facility (TPF)"},"ARM Category":[{"code":"a8m0z000000cxCtAAI","label":"z\/TPF"}],"ARM Case Number":"","Platform":[{"code":"PF036","label":"z\/TPF"}],"Version":"All Versions"}]

Document Information

Modified date:
05 September 2025

UID

ibm17239533

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