A fix is available
Closed as program error.
Communications Server for AIX and Linux --------------------------------------- Crash in sna_v5router
USERS AFFECTED: All. PROBLEM DESCRIPTION: CRASH INFORMATION:CPU 2 CSA F0047BE0 at time of crash, error code for LEDs: 70000000 pvthread+000C00 STACK: [032E0F0C]sna_v5router:nrm_ps_to_rm_rec+000190 (7A2C136C, 372FFCFC) [032E1988]sna_v5router:nrm_queue_handler+00009C (7A2C136C, 00040004, 372FFCFC) [0311A51C]sna_v5router:nba_dispatch_input+00027C (38DEE498, 372FFCFC) [0311ABE4]sna_v5router:nba_dispatch_process+0000C4 (38DEE498, 372FFCFC) [0311B3D8]sna_v5router:nba_scheduler+0001FC () [0310D51C]sna_v5router:vpr_stream_uw_drive_scheduler+000028 () [0310DA08]sna_v5router:vpr_stream_uw_svc+000120 (726C5494) [028E23B8]pse:sq_wrapper+000164 (??) [028CEB44]pse:csq_run+000524 (??) [028CD8B4]pse:csq_lateral+00009C (??, ??, ??) [028E2C80]pse:scheduled_run+0000B8 () [001D4F18]Netintr+0001A0 () [001D4D34]netisr_thread+000014 () threadentry+000014 (??, ??, ??, ??) PROBLEM SUMMARY: There is a very small window when two transactions (one on each end of the session) are initiated at the same time. If the session is a contention loser on the CSAIX end, and the remote end sends a complete conversation (BB and CEB) at the same time that CSAIX sends a BID to initiate a conversation, those can cross and be valid. If those two events are processed in the node under the same callback interrupt, then the processing for them gets interleaved, causing a crash. The window of opportunity for this crash is very, very small.
Internal code has been modified to properly handle this situation. Due to differences in DLC code between AIX and Linux, it is believed that this problem can not occur on Linux, but the fix will be applied to CS Linux, anyway.
Reported component name
CS AIX V6.X
Reported component ID
Last modified date
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fixed component name
CS AIX V6.X
Fixed component ID
Applicable component levels
R640 PSY U851826
12/09/11 I 1000
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