[haiku-bugs] Re: [Haiku] #9806: Opening FAT32 partition yields PANIC: double mutex lock

  • From: "ttcoder" <trac@xxxxxxxxxxxx>
  • Date: Fri, 31 May 2013 17:37:55 -0000

#9806: Opening FAT32 partition yields PANIC: double mutex lock
-------------------------+----------------------------
   Reporter:  ttcoder    |      Owner:  nobody
       Type:  bug        |     Status:  new
   Priority:  normal     |  Milestone:  R1
  Component:  - General  |    Version:  R1/Development
 Resolution:             |   Keywords:
 Blocked By:             |   Blocking:
Has a Patch:  0          |   Platform:  All
-------------------------+----------------------------

Comment (by ttcoder):

 I'm lending my camera to somebody so can't take a screenshot.. But from
 memory, the message and stack crawl look something like this:


 {{{
 PANIC: mutex_lock(): double lock at ... by thread ...

 dprintf()
 ..
 vm_page_fault()
 ..
 filesystem/fat
 ..
 poseview
 }}}

 The fat32 add-on is obviously involved, but I find it interesting that the
 last chunk of code called before panicing is the vm (virtual memory?)
 one.. Is that significant? Wondering.

--
Ticket URL: <http://dev.haiku-os.org/ticket/9806#comment:1>
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