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** [tickets:#1834] amf: amfd crashes during deletion of MW NoRed SI while
standby SC is coming up.**
**Status:** accepted
**Milestone:** 4.7.2
**Created:** Tue May 17, 2016 09:16 AM UTC by Praveen
**Last Updated:** Tue May 17, 2016 09:16 AM UTC
**Owner:** Praveen
**Attachments:**
-
[amfd_crashes.tgz](https://sourceforge.net/p/opensaf/tickets/1834/attachment/amfd_crashes.tgz)
(145.3 kB; application/x-compressed)
Steps to reproduce:
1)Bring up one controller up (say SC-1).
2)While bringing up second controller up(SC-2), try to delete the NoRed MW SI
to be assigned on SC-2. Issue comes when CCB opoerations related callbacks are
timed in this order:
-Completed callback must come when NoRed SI is not assigned for standby
controller. So in this case, Active controller will ack for completed cbk to
imm.
-Now before active AMFD gets the apply callback, NoRed si must gets
assigned,
-After this, active AMFD gets the apply callback and it deletes the SI and
also remove the assignment from the component on standby.
3) NoRed SI is not available on standby so it crashes while trying to accessin
MBCV checkpointing.
In this case standby amfd could not read it from IMM as it was deleted
before that.
4) Active amfd also crashes, while trying to do nodefailover of SC-2 as it
does not find NoRed SI.
Since it is related to timing, reproduced by preparing a patch to force AMFD to
assign NoRed SI in between completed and apply callback. Attached are amfd
traces and bts from both the controllers and also the repr.patch.
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