Created attachment 16284 [details] Work in progress patches for master With multichannel turned on, a tcp disconnect on a connection with a pending open can lead to a panic, when there's still at least 2nd connection attached.
This bug was referenced in samba master: 2a0626c32ae2803cb6c478717c34bf30231dc3dc f1f5c36581a942bcccd63ede4b023fdb1a1d3ed4
This is fixed in master now and will be included in 4.15. (We may backport this to 4.14 at a later time...)