Re: [ros-dev] Qemu Recoverable Assertion when Loading Gecko

[Jérôme Gardou]

Le 18/11/2011 01:07, James Tabor a écrit :
>   Head up on this one. It's recoverable by just
> typing "cont" and it goes on.
>
>  (dll/ntdll/ldr/ldrutils.c:1177) Overlapping DLL:
>  C:\ReactOS\system32\oleaut32.dll
>  WARNING:  MmFlushVirtualMemory at ntoskrnl/mm/ARM3/virtual.c:1044 is
>  UNIMPLEMENTED!
>  fixme:(dll/win32/wintrust/register.c:1161) stub
>  (dll/ntdll/ldr/ldrutils.c:1138) LDR: LdrpMapDll Relocating Image Name
>  C:\ReactOS\system32\mshtml.dll (76650000 ->  014C0000)
>  (dll/ntdll/ldr/ldrutils.c:1177) Overlapping DLL:
>  C:\ReactOS\System32\setupapi.dll
>  (ntoskrnl/se/semgr.c:299) SidInToken Calls: 40000
>  Assertion 'RtlCheckBit(&MiUserPfnBitMap, (ULONG)Page)' failed at
>  ntoskrnl/mm/freelist.c line 127
>  Entered debugger on embedded INT3 at 0x0008:0x80904efe.
>  kdb:>  bt
>  Eip:
>  <NTOSKRNL.EXE:104eff (lib/rtl/i386/debug_asm.S:35 (_DbgBreakPoint@0))>
>  Frames:
>  <NTOSKRNL.EXE:c283d (ntoskrnl/mm/freelist.c:127 (MmRemoveLRUUserPage@4))>
>  <NTOSKRNL.EXE:c18de (ntoskrnl/mm/balance.c:134 (MmReleasePageMemoryConsumer@8))>
>  <NTOSKRNL.EXE:cbf6a (ntoskrnl/mm/section.c:2365 (MmPageOutSectionView@16))>
>  <NTOSKRNL.EXE:c822c (ntoskrnl/mm/rmap.c:143 (MmPageOutPhysicalAddress@4))>
>  <NTOSKRNL.EXE:c17a9 (ntoskrnl/mm/balance.c:177 (MmTrimUserMemory))>
>  <NTOSKRNL.EXE:c141c (ntoskrnl/mm/balance.c:366 (MiBalancerThread@4))>
>  <NTOSKRNL.EXE:f2972 (ntoskrnl/ps/thread.c:156 (PspSystemThreadStartup@8))>
>  <NTOSKRNL.EXE:5a6a (ntoskrnl/ke/i386/thrdini.c:78 (KiThreadStartup@0))>
>  <NTOSKRNL.EXE:f290e (ntoskrnl/ps/thread.c:625 (PsCreateSystemThread@28))>
>  <fcdebd80>
>  <NTOSKRNL.EXE:152e5 (ntoskrnl/ke/wait.c:527 (KeWaitForSingleObject@20))>
>  <NTOSKRNL.EXE:c524e (ntoskrnl/mm/mminit.c:292 (MmMpwThreadMain@4))>
>  <NTOSKRNL.EXE:f2972 (ntoskrnl/ps/thread.c:156 (PspSystemThreadStartup@8))>
>  <NTOSKRNL.EXE:5a6a (ntoskrnl/ke/i386/thrdini.c:78 (KiThreadStartup@0))>
>  <NTOSKRNL.EXE:f290e (ntoskrnl/ps/thread.c:625 (PsCreateSystemThread@28))>
>  <fce4fab0>
>  <00000001>
>  kdb:>  cont
>  Assertion 'RtlCheckBit(&MiUserPfnBitMap, (ULONG)Page)' failed at
>  ntoskrnl/mm/freelist.c line 127
>  Entered debugger on embedded INT3 at 0x0008:0x80904efe.
>  kdb:>  cont
>  (subsystems/win32/win32k/ntuser/keyboard.c:1066) err: No Window for Translate.
>  (dll/ntdll/ldr/ldrutils.c:1138) LDR: LdrpMapDll Relocating Image Name
>  xul.dll (10000000 ->  01DB0000)
>  (dll/ntdll/ldr/ldrutils.c:1177) Overlapping DLL: C:\ReactOS\system32\
>  \1.0.0\wine_gecko\xpcom.dll
>
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Hi James!

I put this ASSERT here to check, as Cameron just pointed, that we don't 
remove a PFN entry from user bitmap when it already has or never was in 
it. I hoped someone would trigger it. I think you deserve a "thank you" :-)

So let's just fix this one, it can't do any harm.

Btw, do you mean by "loading gecko", the very instant when mshtml.dll 
gets registered in 3rd stage? Isn't it startling how it coincides with 
bug 5857 ?

Best regards.
Jérôme