SegFault

SegFault

[Dan Egli]

I thought everything was working grand, when all of a sudden, I noticed that
DosEMU was crashing when I ran a certain program. This program starts up,
looks fine for a while, then all of a sudden, DosEMU dies. The error is
listed below (I tried to extract it from the program header on the screen so
if something is missing, sorry)

ERROR: unexpected CPU exception 0x06 err=0x00000000 cr2=00000000 while in
vm86 (DOS)
Program=sigsegv.c, Line=190
EIP: 0000:0000000c ESP: 2890:0000072c  VFLAGS(b): 00000 00000010 00010010
EAX: 00000006 EBX: 276b0007 ECX: 00000002 EDX: 0000200d VFLAGS(h): 00000212
ESI: 00000007 EDI: 0000075f EBP: 00000000 DS: 1c58 ES: 0000 FS: 0000 GS:
0000
FLAGS: AF IF RF VM VIF  IOPL: 06)
STACK: 00 20 07 00 00 00 00 00 00 00 -> 00 00 00 00 00 00 00 00 00 00
B0\x0f  : aa 03 c6 20 97 0d 20 00 00 f0 -> c6 20 97 0d 29 02 70 00 50 00
 =        62097              0000:000c mov     [bx+si],97

Anyone know how I could fix this?

Re: SegFault

[Dan Egli]

Sorry! I was rushed  and I forgot some things!

I'm CCing the list on this..

Distribution: RedHat 7.3
DosEMU Ver (as reported by RPM) 1.1.1-3
DOS ver: Caldera Dr-Dos 7.03
Program: FastEcho 1.46 (I'd not be surprised if no one has heard of it).
EMS/XMS/DPMI define: 8192KB
CPU defined: 80586
PCI: On

Anything else that would be of value? I'll name it off if requested.
----- Original Message -----
From: "Bonz" <lemmings@microsoft.com>
To: "Dan Egli" <dan@shortcircuit.dyndns.org>
Sent: Tuesday, June 25, 2002 3:31 PM
Subject: Re: SegFault


> Dan Egli wrote:
> >
> > I thought everything was working grand, when all of a sudden, I noticed
that
> > DosEMU was crashing when I ran a certain program. This program starts
up,
> > looks fine for a while, then all of a sudden, DosEMU dies. The error is
> > listed below (I tried to extract it from the program header on the
screen so
> > if something is missing, sorry)
> >
> > ERROR: unexpected CPU exception 0x06 err=0x00000000 cr2=00000000 while
in
> > vm86 (DOS)
> > Program=sigsegv.c, Line=190
> > EIP: 0000:0000000c ESP: 2890:0000072c  VFLAGS(b): 00000 00000010
00010010
> > EAX: 00000006 EBX: 276b0007 ECX: 00000002 EDX: 0000200d VFLAGS(h):
00000212
> > ESI: 00000007 EDI: 0000075f EBP: 00000000 DS: 1c58 ES: 0000 FS: 0000 GS:
> > 0000
> > FLAGS: AF IF RF VM VIF  IOPL: 06)
> > STACK: 00 20 07 00 00 00 00 00 00 00 -> 00 00 00 00 00 00 00 00 00 00
> > B0\x0f  : aa 03 c6 20 97 0d 20 00 00 f0 -> c6 20 97 0d 29 02 70 00 50 00
> >  =        62097              0000:000c mov     [bx+si],97
> >
> > Anyone know how I could fix this?
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-msdos"
in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> That's not very helpful.
>
> If you are expecting a response from the list supply at the very least,
> the distribution you are using, for instance debian woody
> the version of dosemu you are running, for instance 1.0.2.1
> the actual operating system you are using, for instance DR Open-DOS
> 7.02,
> the program that caused the error, for instance master of magic 2.3
>
> It is quite possible that different dos versions might work under dosemu
> with the software you are trying to run.
> By supplying this information people can try other versions of dos &
> determine the exact cause of the problem & possibly even suggest a
> solution like (freedos does not support blah-blah & will cause dosemu to
> segfault, try opendos 6.3 or higher instead)
>
> When you report a problem with your car to a mechanic over the phone, do
> you withhold the model & year of your car & expect him to provide you
> with a quote to fix the problem?
>
> Other things that may help define the problem would be certain
> configuration parameters like the amount of ems, etc you have
> configured, especially if the program you are trying to use creates a
> lot of memory pages.
> I suggest you relook at the problem & then ask yourself If I was helping
> me to fix this what would I need to know?
>

Re: SegFault

[Dan Egli]

One more thing that could be of value is the config.sys file, so it is
pasted below:

DEVICE=C:\DRDOS\SETVER.EXE
SHELL=C:\COMMAND.COM C:\ /E:512 /P
BREAK=ON
BUFFERS=30
LASTDRIVE=Z
HISTORY=ON,512,ON
COUNTRY=1,,C:\DRDOS\COUNTRY.SYS
DOS=HIGH,UMB
FILES=100


----- Original Message -----
From: "Dan Egli" <dan@shortcircuit.dyndns.org>
To: <bonz@misty.apana.org.au>
Cc: <linux-msdos@vger.kernel.org>
Sent: Tuesday, June 25, 2002 6:56 PM
Subject: Re: SegFault


> Sorry! I was rushed  and I forgot some things!
>
> I'm CCing the list on this..
>
> Distribution: RedHat 7.3
> DosEMU Ver (as reported by RPM) 1.1.1-3
> DOS ver: Caldera Dr-Dos 7.03
> Program: FastEcho 1.46 (I'd not be surprised if no one has heard of it).
> EMS/XMS/DPMI define: 8192KB
> CPU defined: 80586
> PCI: On
>
> Anything else that would be of value? I'll name it off if requested.
> ----- Original Message -----
> From: "Bonz" <lemmings@microsoft.com>
> To: "Dan Egli" <dan@shortcircuit.dyndns.org>
> Sent: Tuesday, June 25, 2002 3:31 PM
> Subject: Re: SegFault
>
>
> > Dan Egli wrote:
> > >
> > > I thought everything was working grand, when all of a sudden, I
noticed
> that
> > > DosEMU was crashing when I ran a certain program. This program starts
> up,
> > > looks fine for a while, then all of a sudden, DosEMU dies. The error
is
> > > listed below (I tried to extract it from the program header on the
> screen so
> > > if something is missing, sorry)
> > >
> > > ERROR: unexpected CPU exception 0x06 err=0x00000000 cr2=00000000 while
> in
> > > vm86 (DOS)
> > > Program=sigsegv.c, Line=190
> > > EIP: 0000:0000000c ESP: 2890:0000072c  VFLAGS(b): 00000 00000010
> 00010010
> > > EAX: 00000006 EBX: 276b0007 ECX: 00000002 EDX: 0000200d VFLAGS(h):
> 00000212
> > > ESI: 00000007 EDI: 0000075f EBP: 00000000 DS: 1c58 ES: 0000 FS: 0000
GS:
> > > 0000
> > > FLAGS: AF IF RF VM VIF  IOPL: 06)
> > > STACK: 00 20 07 00 00 00 00 00 00 00 -> 00 00 00 00 00 00 00 00 00 00
> > > B0\x0f  : aa 03 c6 20 97 0d 20 00 00 f0 -> c6 20 97 0d 29 02 70 00 50 00
> > >  =        62097              0000:000c mov     [bx+si],97
> > >
> > > Anyone know how I could fix this?
> > >
> > > -
> > > To unsubscribe from this list: send the line "unsubscribe linux-msdos"
> in
> > > the body of a message to majordomo@vger.kernel.org
> > > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > That's not very helpful.
> >
> > If you are expecting a response from the list supply at the very least,
> > the distribution you are using, for instance debian woody
> > the version of dosemu you are running, for instance 1.0.2.1
> > the actual operating system you are using, for instance DR Open-DOS
> > 7.02,
> > the program that caused the error, for instance master of magic 2.3
> >
> > It is quite possible that different dos versions might work under dosemu
> > with the software you are trying to run.
> > By supplying this information people can try other versions of dos &
> > determine the exact cause of the problem & possibly even suggest a
> > solution like (freedos does not support blah-blah & will cause dosemu to
> > segfault, try opendos 6.3 or higher instead)
> >
> > When you report a problem with your car to a mechanic over the phone, do
> > you withhold the model & year of your car & expect him to provide you
> > with a quote to fix the problem?
> >
> > Other things that may help define the problem would be certain
> > configuration parameters like the amount of ems, etc you have
> > configured, especially if the program you are trying to use creates a
> > lot of memory pages.
> > I suggest you relook at the problem & then ask yourself If I was helping
> > me to fix this what would I need to know?
> >
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Re: SegFault

[Stas Sergeev]

Hello.

Dan Egli wrote:
> DosEMU Ver (as reported by RPM) 1.1.1-3
And dosemu says to you at startup:
"Please test against a recent version before reporting bugs and problems."

Re: SegFault

[Dan Egli]

What's more recent? the most recent "stable" release is 1.0.2! I can always
compile the latest dev release, 1.1.3, .. I'll try that, but I'm doubtful


----- Original Message -----
From: "Stas Sergeev" <stssppnn@yahoo.com>
To: "Dan Egli" <dan@shortcircuit.dyndns.org>
Sent: Tuesday, June 25, 2002 7:56 PM
Subject: Re: SegFault


> Hello.
>
> Dan Egli wrote:
> > DosEMU Ver (as reported by RPM) 1.1.1-3
> And dosemu says to you at startup:
> "Please test against a recent version before reporting bugs and problems."
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Re: SegFault

[Dan Egli]

Only difference is that the long error message has vanished, replaced by:

ERROR: general protection at 0x171ff: 73
ERROR: SIGSEGV, protected insn...exiting!

Same diff, Segfaults!
----- Original Message -----
From: "Stas Sergeev" <stssppnn@yahoo.com>
To: "Dan Egli" <dan@shortcircuit.dyndns.org>
Sent: Tuesday, June 25, 2002 7:56 PM
Subject: Re: SegFault


> Hello.
>
> Dan Egli wrote:
> > DosEMU Ver (as reported by RPM) 1.1.1-3
> And dosemu says to you at startup:
> "Please test against a recent version before reporting bugs and problems."
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>