[haiku-bugs] Re: [Haiku] #5413: PANIC: page 0x821e7918 has mapping for area 0x86259a00 (0x7ffef000), but has no page table entry

  • From: "bonefish" <trac@xxxxxxxxxxxx>
  • Date: Tue, 16 Feb 2010 14:06:22 -0000

#5413: PANIC: page 0x821e7918 has mapping for area 0x86259a00 (0x7ffef000), but
has no page table entry
---------------------------+------------------------------------------------
 Reporter:  anevilyak      |       Owner:  bonefish      
     Type:  bug            |      Status:  in-progress   
 Priority:  normal         |   Milestone:  R1            
Component:  System/Kernel  |     Version:  R1/Development
 Keywords:                 |   Blockedby:                
 Platform:  All            |    Blocking:                
---------------------------+------------------------------------------------
Changes (by bonefish):

  * status:  assigned => in-progress


Comment:

 Replying to [comment:5 anevilyak]:
 > Replying to [comment:4 bonefish]:
 > > Also, since I neither encounter problems with 4 GB memory on real
 hardware, nor with emulated low-memory setups, it would be interesting
 what system you're testing on, and if you have a test you can more or less
 reliably reproduce the problem.
 >
 > The panic I've only run into once so far. The segfaults during build
 happen fairly reliably with the haiku tree for me (after building for long
 enough). In any case, 1GB of RAM w/ 200MB trace buffer, dual core
 Athlon64.

 Indeed the first Haiku image build run I tried with 1 GB RAM turned up a
 problem, as commented in #5374. I guess it's likely that both issues have
 the same cause, which could be modified or mapped pages being moved
 erroneously to the "cached" queue.

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/5413#comment:6>
Haiku <http://dev.haiku-os.org>
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