#7973 BLOC 8.2.0 (: libertas unknown event IDs and hang
Zarro Boogs per Child
bugtracker at laptop.org
Fri Aug 15 15:52:13 EDT 2008
#7973: libertas unknown event IDs and hang
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Reporter: cjb | Owner: dsaxena
Type: defect | Status: new
Priority: blocker | Milestone: 8.2.0 (was Update.2)
Component: kernel | Version: not specified
Resolution: | Keywords:
Next_action: diagnose | Verified: 0
Blockedby: | Blocking:
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Comment(by dsaxena):
So a quick analysis of what is happening from Daniel's log:
The firmware is responding to 0x50 command (ASSOCIATE) with a DEFER, which
means the FW is busy doing something else. The kernel responds by " Will
let it time out...". After a 10 cycles of this, the driver does an EC
reset. The EC rest forces a USB disconnect/reconnect and the second time
we see this, khub gets hung on the disconnect and we see the backtraces
from the kernel b/c "task khubd:313 blocked for more than 120 seconds".
The fact that the driver even has code in there to reset the chip over the
EC makes me really question the stability of our whole wireless firmware
and driver stack. Javier, do you know why this was put in here in the
first place?
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Ticket URL: <http://dev.laptop.org/ticket/7973#comment:13>
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