[haiku-bugs] Re: [Haiku] #10175: midi server crash at startup

  • From: "anevilyak" <trac@xxxxxxxxxxxx>
  • Date: Sun, 26 Jan 2014 20:33:09 -0000

#10175: midi server crash at startup
-----------------------------------+----------------------------
   Reporter:  SeanCollins          |      Owner:  korli
       Type:  bug                  |     Status:  reopened
   Priority:  normal               |  Milestone:  R1
  Component:  Servers/midi_server  |    Version:  R1/Development
 Resolution:                       |   Keywords:
 Blocked By:                       |   Blocking:
Has a Patch:  0                    |   Platform:  All
-----------------------------------+----------------------------

Comment (by anevilyak):

 Can you reboot after the KDL and then save the previous syslog to a USB
 stick via the boot loader? From a quick look, the most probable cause here
 is that usb_midi_device_removed was called prior to the failed read being
 passed on. In such a case, the driver would already have freed the device
 structure (which is also being passed in as the cookie for the read
 callback), which would not bode well for actually processing the read
 failure, as things are currently set up. This would also explain the
 0xdeadbeef seen in EAX at point of KDL, but it would be nice to see
 confirmation of the sequence of events.

--
Ticket URL: <https://dev.haiku-os.org/ticket/10175#comment:7>
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