[haiku-bugs] Re: [Haiku] #1925: Reboot during startup on Toshiba Satellite 2615DVD/6.0
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Tue, 02 Mar 2010 12:34:13 -0000
#1925: Reboot during startup on Toshiba Satellite 2615DVD/6.0
---------------------------+------------------------------------------------
Reporter: umccullough | Owner: bonefish
Type: bug | Status: assigned
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/pre-alpha1
Keywords: | Blockedby:
Platform: x86 | Blocking:
---------------------------+------------------------------------------------
Comment(by bonefish):
Doesn't seem to be related to the problem I found. The extended memory
says:
{{{
base 0x000e8000, len 0x00004000, type 1 (memory)
}}}
So the page at 0xe9000 should point to regular RAM. From
tosh_sat_r35662_TRACE_VM_TMAP.txt:
{{{
early_tmap: entry pa 0xe8000 va 0x80e81000
early_map: asked for free page for pgtable. 0xe9000
PANIC: ASSERT FAILED
(/home/umccullough/haiku/haiku/trunk/src/system/kernel/arch/x86/arch_vm_translation_map.cpp:1439):
(sPageHole[va / 4096] & 0x00000001) == 0; existing pte: 0xffffffff
}}}
Page 0xe9000 is allocated for a page table. That means the page is
completely cleared. Yet the immediately following assert fails, finding
the value 0xffffffff in it. So obviously that isn't usable memory. Either
the memory is defective or the memory map is wrong. I'd recommend running
memtest.
--
Ticket URL: <http://dev.haiku-os.org/ticket/1925#comment:38>
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