portfs and port_send_event
Date: Thu, 12 Apr 2018 08:39:33 +0000
Message-ID: <82592_1523522386_5ACF1B52_82592_8337_1_ECDEF0CC6716EC4596FCBC871F48292AB1996555_at_ZRH-S231>
Is somebody familiar with the specification of Oracle Solaris kernel functions portfs and port_send_event?
These functions are a part of the Solaris Event Completion framework. This framework seems to be used instead of semaphores for posting messages between processes on the Solaris implementation of Oracle.
Here is an example of a call stack within the lgwr process:
port_send_event(FFFFA22B765EFBA8)
libc.so.1`_portfs+0xa
oracle`sskgpwpost+0xf0
oracle`kslpsprns+0x19c
oracle`kcrfw_slave_queue_insert+0x361
oracle`kcrfw_redo_write_driver+0x73e
oracle`ksbabs+0x15c4
oracle`ksbrdp+0x4ce
oracle`opirip+0x2cd
oracle`opidrv+0x24a
oracle`sou2o+0x64
oracle`opimai_real+0x9f
oracle`ssthrdmain+0x21d
oracle`main+0x94
oracle`0xabcb95b
While the other port_* functions are well documented (see https://docs.oracle.com/cd/E86824_01/html/E54766/port-send-3c.html#scrolltoc ) these two are completely missing despite being heavily used.
Best regards,
Nenad
http://nenadnoveljic.com/blog/
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-- http://www.freelists.org/webpage/oracle-lReceived on Thu Apr 12 2018 - 10:39:33 CEST