[haiku-bugs] Re: [Haiku] #5193: [PATCH] openfirmware: Skip mappings to non-physical memory
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Fri, 21 May 2010 15:49:16 -0000
#5193: [PATCH] openfirmware: Skip mappings to non-physical memory
---------------------------------+------------------------------------------
Reporter: andreasf | Owner: axeld
Type: bug | Status: closed
Priority: normal | Milestone: R1
Component: System/Boot Loader | Version: R1/Development
Resolution: fixed | Keywords:
Platform: PowerPC | Blockedby:
Patch: 1 | Blocking: 1048
---------------------------------+------------------------------------------
Changes (by bonefish):
* status: new => closed
* resolution: => fixed
Comment:
Reverted the first patch and uncommented the addition of virtual ranges in
r36886. Basically what the second patch does, just with a comment and
without a warning.
I don't see a convincing reason for
attachment:ppc_free_unused_boot_loader_range2.diff ATM.
Replying to [comment:7 andreasf]:
> More specifically, {{{spawn_kernel_thread}}} ({{{thread.cpp}}}) calls
{{{create_thread}}} and in turn {{{arch_thread_init_kthread_stack}}},
where the {{{memset}}} of 0x80a01000 (size 0x3000) does not return.
>
> As can be seen above, 0x80a0000 is identity-mapped in OpenFirmware.
It shouldn't be mapped at this point anymore.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5193#comment:8>
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