[haiku-bugs] Re: [Haiku] #8650: KDL launching WebPositive development version
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Sat, 30 Jun 2012 16:23:50 -0000
#8650: KDL launching WebPositive development version
----------------------+----------------------------
Reporter: aldeck | Owner: nobody
Type: bug | Status: new
Priority: high | Milestone: R1
Component: System | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by anevilyak):
Looked into it a bit more. The faults start immediately after mapping the
stack for that thread it appears:
{{{
create_anonymous_area [1] pthread func_250_kstack: size 0x4000
map_backing_store: aspace 0x8280af00, cache 0x80fd0380, virtual
0x00000000, offset 0x0, size 16384, addressSpec 4, wiring 2, protection
176, area 0x81b9bca0, areaName 'pthread func_250_kstack'
vm_create_anonymous_area: done
create_anonymous_area [247] pthread func_250_stack: size 0x41000
map_backing_store: aspace 0x80ffb540, cache 0x80fc83f0, virtual
0x70000000, offset 0x0, size 266240, addressSpec 2, wiring 0, protection
59, area 0x81b9bc50, areaName 'pthread func_250_stack'
vm_create_anonymous_area: done
vm_soft_fault: va 0x0 not covered by area in address space
vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at
0xa9, ip 0x8010eea9, write 0, user 0, thread 0xfa
vm_soft_fault: va 0x0 not covered by area in address space
vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at
0xa9, ip 0x8010eea9, write 0, user 0, thread 0xfa
vm_soft_fault: va 0x0 not covered by area in address space
vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at
0xa9, ip 0x8010eea9, write 0, user 0, thread 0xfa
vm_soft_fault: va 0x0 not covered by area in address space
vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at
0x65, ip 0x249dc92, write 0, user 1, thread 0xfa
vm_page_fault: thread "pthread func" (250) in team "WebPositive" (247)
tried to read address 0x65, ip 0x249dc92 ("libwebcore.so_seg0ro"
+0x1f15c92)
write access attempted on write-protected area 0xd at 0x8010e000
vm_page_fault: vm_soft_fault returned error 'Permission denied' on fault
at 0x8010eee3, ip 0x81ba3eb8, write 1, user 0, thread 0xfa
write access attempted on write-protected area 0x18f3 at 0x01f15000
vm_page_fault: vm_soft_fault returned error 'Permission denied' on fault
at 0x1f15c92, ip 0x8075ae, write 1, user 0, thread 0xfa
}}}
What strikes me as somewhat odd is that the virtual address for its kernel
stack is at address 0x0, is that permissible?
--
Ticket URL: <http://dev.haiku-os.org/ticket/8650#comment:7>
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