2009/2/17 Eric Auer e.a...@jpberlin.de:
/* clear the Init BSS area (what normally the RTL does */
memset(_ib_start, 0, _ib_end - _ib_start);
Maybe this broke when Bart tuned the memory model recently?
Remember for example JEMM386 int 19 fastboot compatible
storage of original pointers of hooked BIOS intr here...
As quite a few BIOSes also clear the RAM, it would be plausible
that a bug in this area could stay undetected for quite a while?
in both cases the variable ends up as 0
Not for RayeR, apparently: Some variables were nonzero in initdisk.
if this makes any difference, either
the memset() memset above doesn't work
or
the error relates to the actual placement of the variable in the
DATA segment. usually an overwriting problem or similar.
good luck hunting if it's the latter
As RayeR was able to fix the symptom by using BSS_INIT(x) = x style
for the macro, I hope that if it is the latter his fix would have
broken something else, so I believe that the memset has a problem.
I don't see it: even when tracing with DOSEMU's debugger dosdebug:
t
Trap 1, system state: emulated,stopped
AX= BX=0206 CX=0e7c DX=0a04 SI= DI=0fdc SP=2240 BP=224c
DS=9dd9 ES=9dd9 FS= GS= FL=3312
CS:IP=9062:9c5f SS:SP=9dd9:2240
9062:9c5f 88C4 mov ah,al
t
Trap 1, system state: emulated,stopped
AX= BX=0206 CX=0e7c DX=0a04 SI= DI=0fdc SP=2240 BP=224c
DS=9dd9 ES=9dd9 FS= GS= FL=3312
CS:IP=9062:9c61 SS:SP=9dd9:2240
9062:9c61 D1E9 shr cx,1
t
Trap 1, system state: emulated,stopped
AX= BX=0206 CX=073e DX=0a04 SI= DI=0fdc SP=2240 BP=224c
DS=9dd9 ES=9dd9 FS= GS= FL=3312
CS:IP=9062:9c63 SS:SP=9dd9:2240
9062:9c63 F3AB repe stosw
rep stosw is called for the correct values compared to kernel.map and
the kernel boots fine.
(OW 1.8, current SVN stable kernel source)
So which initdisk variables do you refer too? Where are they in kernel.map?
Bart
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