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docsteer / sacnview

sACNView provides a tool for monitoring and sending the Streaming ACN lighting control protocol used for lighting control in theatres, TV studios and architectural systems
http://www.sacnview.org
Apache License 2.0
102 stars 24 forks source link

sacn viewer 2.12 crashed with malformed sacn #238

Open MartinChisnall opened 3 years ago

MartinChisnall commented 3 years ago

v2.12 cashed spectacularly with a fatal error (Win 10) , but my fault as experimenting with my own sacn source code. I guess it was never designed as a development tool. I was sending 10 universes 1-10, but multicast IP wasn't incrementing so all universes being sent to 239.255.0.1. additionally sequence number incorrectly incrementing so increment on any one universe was 10. ie, U1 sequence went 1,11,21 etc.. I can't easily attach the dump file so please message me if you need it. Thanks

marcusbirkin commented 3 years ago

Could you attach (or email if needs be - I expect you know my work address!) a wireshark dump of the malformed sACN, I can then play this back and directly debug the crash

MartinChisnall commented 3 years ago

Done, By big email attachment - sorry. Martin

On 05/04/2021 17:49, marcusbirkin wrote:

Could you attach (or email if needs be - I expect you know my work address!) a wireshark dump of the malformed sACN, I can then play this back and directly debug the crash

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marcusbirkin commented 3 years ago

It doesn't crash either my Windows or Linux installs, but I do see that the FPS at one point is over 250 Hz! I expect the issue is some form of race condiction from the high packet rate.