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servalproject / serval-dna

The Serval Project's core daemon that implements Distributed Numbering Architecture (DNA), MDP, VoMP, Rhizome, MeshMS, etc.
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serval crashes on a 100 nodes hub senario #102

Open lampep opened 8 years ago

lampep commented 8 years ago

As we described in #101 we ran some tests with serval.

Another test for serval is to start 100 nodes and bridge them together on a hub. In case of this test we realised serval crashes on some nodes. It's the same configuration that is working on other network topologies.

We have extracted the fatal messages from the log and attached them. If you need more information we're happy to send them to you. Any Ideas what causes this?

serval_hub_dump.txt

Edit: we just realised our serval is built without a symbol table. If you need more details from the dump we could recompile serval.

lakeman commented 8 years ago

Can you recompile with debug symbols? Or is there something else related to your test environment that is preventing gdb from reading the executable?

On Wed, Apr 27, 2016 at 8:46 PM, Patrick Lampe notifications@github.com wrote:

As we described in #101 https://github.com/servalproject/serval-dna/issues/101 we ran some tests with serval.

Another test for serval is to start 100 nodes and bridge them together on a hub. In case of this test we realised serval crashes on some nodes. It's the same configuration that is working on other network topologies.

We have extracted the fatal messages from the log and attached them. If you need more information we're happy to send them to you. Any Ideas what causes this?

serval_hub_dump.txt https://github.com/servalproject/serval-dna/files/238510/serval_hub_dump.txt

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Rubyfi commented 8 years ago

We recompiled the binary with debug symbols. Here's the dump of the error: serval_fatals_dump.txt

gardners commented 8 years ago

Temporarily adding extra asserts to _ob_append_bytes() to help Lars get more detailed info. Can strip those out after Lars has reported the results. 382694464bd4f6d3722475ae9a78a480d5c407ed

lakeman commented 8 years ago

Note that the crash from the first comment looks like the same one as #103. This second crash is different.