- **status**: review --> fixed
- **Comment**:

changeset:   6282:c8fceaf55295
branch:      opensaf-4.5.x
tag:         tip
parent:      6279:9c24654a048c
user:        A V Mahesh <[email protected]>
date:        Mon Feb 23 11:01:28 2015 +0530
summary:     mds: replace static array send buffer with dynamic memory [#1248]
 
changeset:   6281:1799a77553c1
parent:      6278:6fce16cb0539
user:        A V Mahesh <[email protected]>
date:        Mon Feb 23 11:01:13 2015 +0530
summary:     mds: replace static array send buffer with dynamic memory [#1248]



---

** [tickets:#1248] mds: sending a bigger message causing application segfault 
in full encode when less stack size**

**Status:** fixed
**Milestone:** 4.5.1
**Created:** Tue Jan 27, 2015 10:03 AM UTC by A V Mahesh (AVM)
**Last Updated:** Mon Feb 09, 2015 05:10 AM UTC
**Owner:** A V Mahesh (AVM)

This bug address part of #1246 enhancement ticket.

To improve performance and reduce the traffic  of   transport ,
we increased the MDS send  size in a single message   from  18000 to 65536  as 
part of enhancement  #654.

If MDS application task was created with Medium/less stack size say 32000
and try to send huge message say above 2^16 size message (65536) using 
MDS_SENDTYPE_RSP,
because of static allocation of bigger message application is running out of 
stack and application is facing segfault.

use-case of sending  huge data using MDS_SENDTYPE_RSP`  send-type is  so far 
fist-time/unexposed/unique  use-case , so far application are using  
SENDTYPE_RSP for to send a short response message received through 
SENDTYPE_SNDRSP.

Ideally application were using SENDTYPE_SND, SENDTYPE_SNDRSP, SENDTYPE_SNDRAC & 
SENDTYPE_SNDACK, send-types to send huge message to avoid timeout issue between 
send & response,  that is why the issue was NOT reproducible with normal send 
messages.


So, this ticket will only address full encode code path of send message , which 
is generic  use case and  need to be addressed immediately.

Please note that there is another enhancement ticket:#1246, which will identify 
more send flows and fix them in coherent manner.



---

Sent from sourceforge.net because [email protected] is 
subscribed to https://sourceforge.net/p/opensaf/tickets/

To unsubscribe from further messages, a project admin can change settings at 
https://sourceforge.net/p/opensaf/admin/tickets/options.  Or, if this is a 
mailing list, you can unsubscribe from the mailing list.
------------------------------------------------------------------------------
Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
from Actuate! Instantly Supercharge Your Business Reports and Dashboards
with Interactivity, Sharing, Native Excel Exports, App Integration & more
Get technology previously reserved for billion-dollar corporations, FREE
http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk
_______________________________________________
Opensaf-tickets mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/opensaf-tickets

Reply via email to