Ticket #4921 (new defect)

Opened 6 years ago

Last modified 6 years ago

[firmware] XO laptops may cause conventional laptops to disconnect

Reported by: kimquirk Owned by: kimquirk
Priority: high Milestone: Future Release
Component: wireless Version:
Keywords: Cc: mbletsas, jg, jcardona, dilinger, dwmw2
Action Needed: Verified: no
Deployments affected: Blocked By:
Blocking:

Description

Two people (Robert and Kim) have reported that their somewhat older conventional laptops disconnects and reconnects to their AP only when XO laptops are also on that AP.

This trac report is a placeholder to try to collect more information and run more specific tests to see it is reproducible.

Change History

Changed 6 years ago by jg

I saw this as well, when testing OFW image installation with my WTR54GS.

Changed 6 years ago by jg

  • cc jg, jcardona added

Changed 6 years ago by jcardona

This seems to be a duplicate of #4805...

Changed 6 years ago by jg

  • cc dilinger added

Probably/possibly/maybe.

But this one we can reproduce in Cambridge and get packet captures for you, whereas #4805 is at a venue we don't have access to.

So I think I'd like to keep them separate unless/until we can verify they have the same root cause.

I've asked dilinger to work with you to get packet captures in Cambridge.

Changed 6 years ago by dilinger

I've failed to reproduce the problem in cambridge; I *think* I saw it once, but it looks more likely that it was a crash in my laptop's ipw2200 driver. When I associated the XO with the "media lab 802.11" AP, my other laptop (an x40) was knocked offline. Running top, I saw the ipw2200 kthread consuming 100% cpu. Reloading the kernel driver fixed it.

After that I tried to trigger the problem again, but was unsuccessful.

Changed 6 years ago by jg

  • milestone changed from Never Assigned to Future Release

Changed 6 years ago by dwmw2

  • cc dwmw2 added

Changed 6 years ago by dwmw2

  • summary changed from XO laptops may cause conventional laptops to disconnect to [firmware] XO laptops may cause conventional laptops to disconnect
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