Openmoko Bug #2232: unplugging with gadgetfs causes panic: "softlockup: blocked tasks"

[Openmoko Public Trac]

#2232: unplugging with gadgetfs causes panic: "softlockup: blocked tasks"
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 Reporter:  lindi            |          Owner:  openmoko-kernel
     Type:  defect           |         Status:  in_testing     
 Priority:  normal           |      Milestone:                 
Component:  System Software  |        Version:  unspecified    
 Severity:  normal           |       Keywords:                 
 Haspatch:  0                |      Blockedby:                 
Estimated:                   |    Patchreview:                 
 Blocking:                   |   Reproducible:                 
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Comment(by lindi):

 My guess here is: when epio_complete is called it tries to use
 req->context which points to completion struct that was allocated on stack
 in ep_io() and that has already returned? Any idea why the req is still in
 the queue even though ep_io calls usb_ep_dequeue?

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Ticket URL: <https://docs.openmoko.org/trac/ticket/2232#comment:9>
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