DLm0642E: Error interno: no se puede obtener buffer desde grupo DevBuf: retraso (al ejecutar 5.4.x)
Summary: Varios mensajes de DLm0642E durante la actividad de BORRADO de DLm a nivel de código de DLm 5.4.0.0 pueden hacer que los subprocesos dejen de responder, lo cual requiere un reinicio de la aplicación Virtuent. El problema se corrige en DLm 5.4.0.1 y códigos posteriores. ...
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Symptoms
Esto es lo que se observa en el btilog:
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume F18852 (/tapelibEPPROD/15_SNAP1/~F18852) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume ED7900 (/tapelibEPPROD/10_SNAP1/~ED7900) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume E02399 (/tapelibEPPROD/01_SNAP1/~E02399) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume J27319 (/tapelibEPPROD/12_SNAP1/~J27319) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
10/02/2021 05:53:17 vte1 VT: DLm0899I: Tapelib /tapelibNBDEV/01 thread has been in state: 01009230 for 619 seconds
10/02/2021 05:53:17 vte1 VT: DLm0899I: Tapelib /tapelibNBDEV/02 thread has been in state: 01009230 for 629 seconds
10/02/2021 05:57:17 vte1 VT: DLm0899I: Device 8108 has been in state: 4D10200D for 611 seconds
10/02/2021 06:00:31 vte1 VT: DLm0207W: Device 8023 bypassing stalled filesystem /tapelibNBDEV/01 (stalled for 1054 seconds)(build list)(01009230)
10/02/2021 06:00:31 vte1 VT: DLm0207W: Device 8023 bypassing stalled filesystem /tapelibNBDEV/02 (stalled for 1064 seconds)(build list)(01009230)
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume ED7900 (/tapelibEPPROD/10_SNAP1/~ED7900) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume E02399 (/tapelibEPPROD/01_SNAP1/~E02399) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0501I: Volume J27319 (/tapelibEPPROD/12_SNAP1/~J27319) erased (without truncation)
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:54 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
09/15/2021 11:50:55 vte1 VT: DLm0642E: Internal Error: cannot get buffer from DevBuf pool: delay
10/02/2021 05:53:17 vte1 VT: DLm0899I: Tapelib /tapelibNBDEV/01 thread has been in state: 01009230 for 619 seconds
10/02/2021 05:53:17 vte1 VT: DLm0899I: Tapelib /tapelibNBDEV/02 thread has been in state: 01009230 for 629 seconds
10/02/2021 05:57:17 vte1 VT: DLm0899I: Device 8108 has been in state: 4D10200D for 611 seconds
10/02/2021 06:00:31 vte1 VT: DLm0207W: Device 8023 bypassing stalled filesystem /tapelibNBDEV/01 (stalled for 1054 seconds)(build list)(01009230)
10/02/2021 06:00:31 vte1 VT: DLm0207W: Device 8023 bypassing stalled filesystem /tapelibNBDEV/02 (stalled for 1064 seconds)(build list)(01009230)
Cause
Se presentó un problema de código en la versión DLm 5.4.0.0, el cual puede causar un retraso en la liberación del búfer del dispositivo después de su uso durante el procesamiento de formateo o BORRADO.
Se trata de un problema de inanición de búfer en el cual el grupo de búfer se agota durante un proceso intenso de formateo o borrado, lo que provoca demoras en cascada cuando otros subprocesos que intentan obtener un búfer deben esperar.
Se trata de un problema de inanición de búfer en el cual el grupo de búfer se agota durante un proceso intenso de formateo o borrado, lo que provoca demoras en cascada cuando otros subprocesos que intentan obtener un búfer deben esperar.
Resolution
El cliente debe realizar una corrección inmediata reiniciando la aplicación Virtuent o reiniciando el VTE.
Este problema se aborda en DLm 5.4.0.1 y códigos posteriores.
Este problema se aborda en DLm 5.4.0.1 y códigos posteriores.
Affected Products
Disk Library for mainframe DLm2500, Disk Library for mainframe DLm8500Article Properties
Article Number: 000191670
Article Type: Solution
Last Modified: 21 Oct 2025
Version: 8
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