On 05/13/14 16:55, Ludovic Rousseau wrote: > 2014-05-13 16:24 GMT+02:00 Laszlo Ersek <ler...@redhat.com>:
>> Please rebuild your gnu-efi installation with the attached patch, and >> retest your app. > > I still get a crash but with a different message in serial.log > FS0:\> debug1 > a > b > !!!! X64 Exception Type - 000000000000000D CPU Apic ID - 00000000 !!!! > RIP - 0000000007DCE98B, CS - 0000000000000028, RFLAGS - 0000000000000282 > ExceptionData - 0000000000000000 > RAX - C9F0458B48685089, RCX - C9F0458B48685089, RDX - 0000000000000000 > RBX - 0000000080000000, RSP - 0000000007F94520, RBP - 0000000007F94560 > RSI - 000000000000000E, RDI - 0000000007DD0C30 > R8 - 0000000000000000, R9 - 0000000007F93F07, R10 - 0000000006D86DBA > R11 - 0000000000000040, R12 - 0000000000000000, R13 - 0000000000000000 > R14 - 0000000000000000, R15 - 0000000000000000 > DS - 0000000000000008, ES - 0000000000000008, FS - 0000000000000008 > GS - 0000000000000008, SS - 0000000000000008 > CR0 - 0000000080000033, CR2 - 0000000000000000, CR3 - 0000000007F33000 > CR4 - 0000000000000668, CR8 - 0000000000000000 > DR0 - 0000000000000000, DR1 - 0000000000000000, DR2 - 0000000000000000 > DR3 - 0000000000000000, DR6 - 00000000FFFF0FF0, DR7 - 0000000000000400 > GDTR - 0000000007F1ED98 000000000000003F, LDTR - 0000000000000000 > IDTR - 000000000747F018 0000000000000FFF, TR - 0000000000000000 > FXSAVE_STATE - 0000000007F94180 > !!!! Find PE image > /home/jljusten/tmp/edk2/Build/OvmfX64/RELEASE_GCC47/X64/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterDxe/DEBUG/ConSplitterDxe.dll > (ImageBase=0000000007DC9000, EntryPoint=0000000007DC92AF) !!!! > > I do not see the "D_ERROR" log message any more. The crash now occurs > _before_ the debug message is displayed. > > Another suggestion? Ah, certainly. This tells us that the DEBUG() call actually succeeded. Internally, it probably attempted to write some data (your debug message) to the console. The register dump itself comes from "UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c". Exception type 0xD seems to be EXCEPT_X64_GP_FAULT [MdePkg/Include/Protocol/DebugSupport.h]. The console output is split (duplicated) by ConSplitterDxe to the graphics window and the serial console. gnu-efi might be doing something in DbgPrint that makes ConSplitterDxe dereference a bad pointer. I'd recommend digging into DbgPrint to see where exactly it triggers this. In addition, if you can reproduce this crash with a OVMF binary that you build yourself (preferably from a fresh checkout), then you'll have the "ConSplitterDxe.dll" file available (referenced above). That should help you locate the crash in ConSplitterDxe; see eg. <http://thread.gmane.org/gmane.comp.bios.tianocore.devel/5187/focus=5193>. (Search it for "X64 Exception Type".) 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
