On 2012-02-27 10:51, Daniel P. Berrange wrote: > I'm seeing current QEMU GIT fail to boot MS-Dos 6.22 with the following > crash: > > # qemu-system-x86_64 -fda ~/MS-DOS\ 6.22.img -m 1 -curses > iPXE v1.0.0-591-g7aee315 > iPXE (http://ipxe.org) 00:03.0 C900 PCI2.10 > PnP PMM+00000000+00000000 C900 > > Booting from Floppy.. > . qemu: fatal: Trying to execute code outside > RAM or ROM at 0x00000001000effff > > EAX=ffffffff EBX=ffffffff ECX=0000c934 EDX=00000068 > ESI=00006801 EDI=00000000 EBP=0000002b ESP=0000fff5 > EIP=ffffffff EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 > ES =0040 00000400 0000ffff 00009300 > CS =f000 000f0000 0000ffff 00009b00 > SS =9ec4 0009ec40 0000ffff 00009300 > DS =9ec4 0009ec40 0000ffff 00009300 > FS =0000 00000000 0000ffff 00009300 > GS =0000 00000000 0000ffff 00009300 > LDT=0000 00000000 0000ffff 00008200 > TR =0000 00000000 0000ffff 00008b00 > GDT= 000fcd78 00000037 > IDT= 00000000 000003ff > CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000 > DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 > DR3=0000000000000000 > DR6=00000000ffff0ff0 DR7=0000000000000400 > CCS=000000d0 CCD=00000068 CCO=SARL > EFER=0000000000000000 > 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 > Aborted > > > Git bisect blames this > > commit 41bd360325168b3c1db78eb7311420a1607d521f > Author: Jan Kiszka <jan.kis...@siemens.com> > Date: Sun Jan 15 17:48:25 2012 +0100 > > seabios: Update to release 1.6.3.1 > > User visible changes in seabios: > - Probe HPET existence (fix for -no-hpet) > - Probe PCI existence (fix for -machine isapc) > - usb: fix boot paths > > Signed-off-by: Jan Kiszka <jan.kis...@siemens.com> > > > I tried to bisect Seabios, but every revision in Seabios upstream works > fine. > > Then I noticed, that if I rebuild the BIOS, from the exact same revision > 1.6.3.1 revision that is committed in 'seabios' submodule in QEMU, then > it works fine. So AFAICT, it is not the Seabios source code at fault, > but rather the binary build we have commited to GIT. Should/can we rebuild > the bios.bin in GIT ?
Probably not without understanding what causes this strange inconsistency. If Seabios builds without errors and then later on fails, this is also a bug. Kevin, what information do you need to assess my tool chain? Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
