[ofa-general] opensm: a bug in heavy sweep? - no LFT re-configuration

Eitan Zahavi eitan at mellanox.co.il
Sat Jul 21 23:36:06 PDT 2007


Hi Sasha

I am running some tests manually and apparently it looks like 
I found a bug. Here is the sequence of things:
1. SM sweeps the fabric assign LFTs  
2. I manually modify some LFTs (single entry now marked UNREACHABLE
3. I force some switch change bit to 1 or issue kill -HUP
4. The SM reports SUBNET UP
5. The modified LFT entry is still UNREACHABLE and the path is broken

It looks to me some optimization of routing does not fully reroute
unless some condition is met - but that condition does not include the
above triggers listed in step 3.

Thanks

Eitan





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