I seem to remember a similar red alert last year for all the then supported zOS releases. I'm surprised this popped up again under zOS 1.11.
Mark Jacobs -----Original Message----- From: IBM Mainframe Discussion List on behalf of Knutson, Sam Sent: Fri 2/26/2010 7:25 PM To: IBM-MAIN@bama.ua.edu Subject: Red Alert: All TCPIP users on z/OS 1.11 (2010.02.26) http://www14.software.ibm.com/webapp/set2/sas/f/redAlerts/20100226.html Abstract: A logic error in the base TCPIP code of z/OS 1.11 can cause applications using ASYNCIO Writes to be driven twice. This can affect various applications and subsystems using z/OS TCPIP ASYNCIO on the sending side, such as Websphere MQ, JES and non-IBM products. Description: A logic error in TCPIP on z/OS 1.11 can cause applications using ASYNCIO Writes to be driven twice. The application data presented on the socket write operation is sent over the TCP connection twice, thus corrupting the data stream. This can affect various applications and subsystems using z/OS TCPIP ASYNCIO on the sending side, such as Websphere MQ, JES and non-IBM products. Please see APAR PM08514 for the details and symptoms that may result. Recommended Action: All z/OS 1.11 users should install the APAR fix for PM08514 that is currently available from IBM Support. This APAR does not apply to prior z/OS releases. --- end of the IBM Red Alert --- If you didn't get this directly from IBM consider to sign up for Red Alerts here http://www14.software.ibm.com/webapp/set2/sas/f/redAlerts/home.html The APAR is still open so there is no public URL for it. APAR Identifier ...... PM08514 Last Changed ........ 10/02/26 TIMING WINDOW CAN CAUSE ASYNCIO WRITE TO BE DRIVEN TWICE WHEN AIOOK2COMPIMD IS NOT SPECIFIED 10/02/25 PTF PECHANGE Symptom ...... IN INCORROUT Status ........... OPEN Severity ................... 3 Date Closed ......... Component .......... 5655HAL00 Duplicate of ........ Reported Release ......... 1B0 Fixed Release ............ Component Name TCP/IP V3 MVS Special Notice PE HIPER Current Target Date .. Flags SCP ................... Platform ............ PERVASIVE DATALOSS Status Detail: Not Available PE PTF List: UK52724 UK49089 UK50684 Best Regards, Sam Knutson, GEICO System z HW/SW/Automation Team Leader mailto:sknut...@geico.com (office) 301.986.3574 (cell) 301.996.1318 "Think big, act bold, start simple, grow fast..." ==================== This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
