On Mon, May 19, 2014 at 7:00 PM, Fan, Jeff <jeff....@intel.com> wrote: > 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");
It is a little confusing, but I think gnu-efi has its own DEBUG macro that may use ST->StdErr. So, that may still involve the ConSplitter. -Jordan > -----Original Message----- > From: Laszlo Ersek [mailto:ler...@redhat.com] > Sent: Monday, May 19, 2014 5:16 PM > To: edk2-devel@lists.sourceforge.net > Subject: Re: [edk2] Crash in qemu + OVMF after a call to DEBUG() > > On 05/19/14 10:33, Ludovic Rousseau wrote: > >> My debug1.c code is now: >> #include <efi.h> >> #include <efilib.h> >> >> EFI_STATUS >> efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) { >> InitializeLib(ImageHandle, SystemTable); >> >> 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"); >> >> return EFI_SUCCESS; >> } >> >> On the serial console I get: >> FS0:\> debug1.efi >> a >> b >> !!!! 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/MdeMo >> dulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe/DEBUG/ConSplit >> terDxe.dll (ImageBase=0000000006B9F000, EntryPoint=0000000006B9F2AF) >> !!!! >> >> I get this crash before the debug message is displayed. This is with >> OVMF I rebuild myself using edk2 SVN revision 15536 > > Please state your qemu version and qemu command line. > > Please also upload > "/home/lroussea/Documents/UEFI/edk2/Build/OvmfX64/DEBUG_GCC47/X64/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe/DEBUG/ConSplitterDxe.dll" > somewhere public. (The binary must match the above register dump.) > > Thanks, > Laszlo > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform > available Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/edk2-devel > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform available > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/edk2-devel ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
