HP FDDI 9000 FDDI/9000 EISA Adapter Release Notes - Page 28

Table 1-8 FDDI/9000 EISA Adapter Release Notes Patches and Fixes in Version B.11.00.07 PHNE_18665 (Continued) Symptom Defect 3. The system panics with a 'Data page fault' when promiscuous mode is repeatedly turned on and off over the EISA FDDI interface. 4. The system may panic with a 'Data page fault' when the EISA FDDI interface is operating in promiscuous mode with heavy inbound traffic. 5. Aborts/Underruns are observed when frames larger than 3000 bytes are transmitted, with EISA SCSI present on the system. 3. When promiscuous mode is turned on/off repeatedly, there was a time window during which the stream, which had previously turned promiscuous mode off, was closed before the card's promiscuous mode was turned off by the driver. The time window was introduced because of the order in which the driver carried out the steps to disable promiscuous mode on the interface. Due to this time window, some packets were still sent to a non-existent stream, leading to a system panic. Apart from correcting the order of steps followed to disable promiscuous mode, the driver code has been changed to synchronize access to the promiscuous mode related data structures by using locks. 4. Under heavy network traffic, with the EISA FDDI interface in promiscuous mode, when a call to allocate memory failed, an inbound buffer could be freed more than once, resulting in a system panic. The code has been modified to insure that the inbound buffer will be freed only once. 5. This problem was fixed in an earlier patch by increasing the transmit FIFO watermark on the FSI chip to MTU size. However, the FIFO watermark was getting reset to the default value after a card reset. Also, the transmit FIFO watermark is now set to MTU size after a card reset. 28 Chapter 1