Problem with permissions

Problem with permissions

[Stian Sletner]

Hi.

I have a problem running DOSEMU in privileged mode.  It fails to open
/proc/self/*, so when starting doom it bombs out with:

ERROR: can't open /proc/self/maps
ERROR: Unable to allocate DPMI memory pool of size 0x1405000 at address 0x10000000

strace shows that it seems to setuid from root to my user before trying
to open these, maybe that's the problem?

20814 open("/proc/self/maps", O_RDONLY) = -1 EACCES (Permission denied)

I also noticed a lot of this stuff:

20814 vm86(0x1, 0x81a44e0, 0x64, 0x10000, 0) = -1 ENOSYS (Function not implemented)

But I don't know if that's a problem.

Thanks.

-- 
Stian Sletner

Re: Problem with permissions

[Stian Sletner]

As always, I forget the important stuff.

DOSEMU 1.3.2, Fedora Core 4, kernel 2.6.12-1.1398_FC4.

-- 
Stian Sletner

Re: Problem with permissions

[Stas Sergeev]

Hello.

Stian Sletner wrote:
> I have a problem running DOSEMU in privileged mode.
How? "dosemu -s" ?

> kernel 2.6.12-1.1398_FC4.
I bet this is the culprit. RH is
known to apply the different security
patches that break dosemu, might be
one of such cases I think. Try fresh
kernel.

Re: Problem with permissions

[Stian Sletner]

* At 2005-08-09T21:20+0400, Stas Sergeev wrote:
: 
| How? "dosemu -s" ?

Tried both -s/sudo and setuid.

| >kernel 2.6.12-1.1398_FC4.
| I bet this is the culprit. RH is
| known to apply the different security
| patches that break dosemu, might be
| one of such cases I think. Try fresh
| kernel.

Ugh.  Well, I've ran Red Hat and Fedora forever and haven't really had
any problems of this sort before, I think.  Also, I have completely
disabled SELinux.  Thanks though.  I'll see about compiling a fresh one
some rainy day...

-- 
Stian Sletner