Re: [ros-dev] KeBugCheck

[James Tabor]

Hi,
Hartmut Birr wrote:
>   
>  I get weird crashs if I set OARCH to pentium4. Looking to te PAGED_CODE
>  macro in ExMapHandleToPointer:
>  
>  PHANDLE_TABLE_ENTRY
>  ExMapHandleToPointer(IN PHANDLE_TABLE HandleTable,
>                       IN LONG Handle)
>  {
>  80027801:    55                       push   %ebp
>  80027802:    89 e5                    mov    %esp,%ebp
>  80027804:    83 ec 08                 sub    $0x8,%esp
>    PHANDLE_TABLE_ENTRY HandleTableEntry;
>  
>    PAGED_CODE();
>  80027807:    e8 84 3c 06 00           call   8008b490 <_KeGetCurrentIrql@0>
>  8002780c:    3c 01                    cmp    $0x1,%al
>  8002780e:    76 49                    jbe    80027859
>  <_ExMapHandleToPointer+0x58>
>  80027810:    e8 7b 3c 06 00           call   8008b490 <_KeGetCurrentIrql@0>
>  80027815:    25 ff 00 00 00           and    $0xff,%eax
>  8002781a:    50                       push   %eax
>  8002781b:    68 8d 03 00 00           push   $0x38d
>  80027820:    68 70 13 0b 80           push   $0x800b1370
>  80027825:    68 7c 13 0b 80           push   $0x800b137c
>  8002782a:    e8 21 b7 ff ff           call   80022f50 <_DbgPrint>
>  ...
>  
>  The first call to KeGetCurrentIrql returns an irql which is higher than
>  APC level. The second call returns PASSIVE_LEVEL. This can't occur
>  because there is no function which  raise or lower the irql. It may be
>  possible , that a task switch occur before and after the first call to
>  KeGetCurrentIrql and which has set the irql to a wrong value.
>  
>  - Hartmut
>   
Was it in idle? I left my system running, just idling. Come back ~12 hours later
and find it in a blue state of mind.

BTW, Csrss eats 3 to 5% of the system just setting there.

James