2014-05-20 4:00 GMT+02:00 Fan, Jeff <jeff....@intel.com>: > X64 Exception Type - 000000000000000E means Page Fault exception > RIP - 0000000006BA58DE means in > MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe. > (ImageBase=0000000006B9F000) > CR2 - FFFFFFFFFFFFFFF0 means Page Fault > exception occurred at address 0xFFFFFFFFFFFFFFF0 > > So, the code in ConsplitterDxe try to access 0xFFFFFFFFFFFFFFF0 that is > invalid address without page table entry. Maybe Some memory is crashed. > > In general, DEBUG does not involve ConsplitterDxe. But Print() does involve > ConspliteterDxe to print message on console devices. > > You may try comment all Print() and only test DEBUG to see if it could work > well. > > // Print(L"a\n"); > DEBUG(( D_INFO, (CHAR8 *)"D_INFO\r\n")); > //Print(L"b\n"); > DEBUG(( D_ERROR, (CHAR8 *)"D_ERROR\r\n")); > //Print(L"c\n");
With the Print() calls commented out I do not see any log displayed in
the serial console. The "D_ERROR" message is no more displayed.
But I still have a crash of qemu:
qemu: fatal: Trying to execute code outside RAM or ROM at 0x00000000000b0000
RAX=0000000000000000 RBX=0000000080000000 RCX=0000000000000000
RDX=0000000000000007
RSI=000000000000000e RDI=0000000007dd0c30 RBP=0000000007f94560
RSP=0000000007f94518
R8 =0000000000000000 R9 =0000000007fb95df R10=0000000007f94690
R11=0000000006eb2f30
R12=0000000000000005 R13=0000000000000000 R14=0000000000000000
R15=0000000000000000
RIP=00000000000affae RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0008 0000000000000000 ffffffff 00cf9300 DPL=0 DS [-WA]
CS =0028 0000000000000000 ffffffff 00af9b00 DPL=0 CS64 [-RA]
SS =0008 0000000000000000 ffffffff 00cf9300 DPL=0 DS [-WA]
DS =0008 0000000000000000 ffffffff 00cf9300 DPL=0 DS [-WA]
FS =0008 0000000000000000 ffffffff 00cf9300 DPL=0 DS [-WA]
GS =0008 0000000000000000 ffffffff 00cf9300 DPL=0 DS [-WA]
LDT=0000 0000000000000000 0000ffff 00008200 DPL=0 LDT
TR =0000 0000000000000000 0000ffff 00008b00 DPL=0 TSS64-busy
GDT= 0000000007f1ed98 0000003f
IDT= 000000000747f018 00000fff
CR0=80000033 CR2=0000000000000000 CR3=0000000007f33000 CR4=00000668
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
CCS=0000000000000000 CCD=0000000000000000 CCO=ADDB
EFER=0000000000000500
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
$ qemu -version
QEMU emulator version 1.1.2 (Debian 1.1.2+dfsg-6a+deb7u3), Copyright
(c) 2003-2008 Fabrice Bellard
Using my own build OVMF (edk2 revision 15538) I do not get any display
in the serial console and the qemu is consuming 100% CPU untill I kill
it.
If I uncomment the 1st Print() call I have:
Print(L"a\n");
DEBUG(( D_INFO, (CHAR8 *)"D_INFO\r\n"));
//Print(L"b\n");
DEBUG(( D_ERROR, (CHAR8 *)"D_ERROR\r\n"));
//Print(L"c\n");
And the serial output is:
FS0:\> debug1.efi
a
!!!! X64 Exception Type - 000000000000000E CPU Apic ID - 00000000 !!!!
RIP - 0000000006BA58DE, CS - 0000000000000028, RFLAGS - 0000000000000287
ExceptionData - 0000000000000000
RAX - FFFFFFFFFFFFFFF0, RCX - 0000000000000000, RDX - 0000000000000007
RBX - 0000000080000000, RSP - 0000000007F6A4F0, RBP - 0000000007F6A530
RSI - 000000000000000E, RDI - 0000000006BAA790
R8 - 0000000000000000, R9 - 0000000007F69EA7, R10 - 00000000069A169D
R11 - 0000000000000040, R12 - 0000000000000005, R13 - 0000000000000000
R14 - 0000000000000000, R15 - 0000000000000000
DS - 0000000000000008, ES - 0000000000000008, FS - 0000000000000008
GS - 0000000000000008, SS - 0000000000000008
CR0 - 0000000080000033, CR2 - FFFFFFFFFFFFFFF0, CR3 - 0000000007F09000
CR4 - 0000000000000668, CR8 - 0000000000000000
DR0 - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000
DR3 - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400
GDTR - 0000000007EF2D98 000000000000003F, LDTR - 0000000000000000
IDTR - 0000000007C1E018 0000000000000FFF, TR - 0000000000000000
FXSAVE_STATE - 0000000007F6A150
!!!! Find PE image
/home/lroussea/Documents/UEFI/edk2/Build/OvmfX64/DEBUG_GCC47/X64/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe/DEBUG/ConSplitterDxe.dll
(ImageBase=0000000006B9F000, EntryPoint=0000000006B9F2AF) !!!!
Attached is a gzip compressed version of my
/home/lroussea/Documents/UEFI/edk2/Build/OvmfX64/DEBUG_GCC47/X64/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe/DEBUG/ConSplitterDxe.dll
file. I hope that is OK for the mailing list.
Thanks
--
Dr. Ludovic Rousseau
ConSplitterDxe.dll.gz
Description: GNU Zip compressed data
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