Received: from PACIFIC-CARRIER-ANNEX.MIT.EDU by po7.MIT.EDU (5.61/4.7) id AA13929; Mon, 18 Dec 95 00:16:21 EST Received: from SENATOR-BEDFELLOW.MIT.EDU by MIT.EDU with SMTP id AA24580; Mon, 18 Dec 95 00:16:20 EST Received: (from root@localhost) by senator-bedfellow.MIT.EDU (8.6.12/2.3JIK) id AAA28112 for Linux-Development-System-Dist@senator-bedfellow.mit.edu; Mon, 18 Dec 1995 00:13:42 -0500 Message-Id: <199512180513.AAA28112@senator-bedfellow.MIT.EDU> From: Digestifier To: Linux-Development-System@senator-bedfellow.MIT.EDU Reply-To: Linux-Development-System@senator-bedfellow.MIT.EDU Date: Mon, 18 Dec 95 00:13:37 EST Subject: Linux-Development-System Digest #130 Linux-Development-System Digest #130, Volume #2 Mon, 18 Dec 95 00:13:37 EST Contents: Re: Linux Security - C2 and beyond (Scott Johnson) zftape doesn't recognize bad segments (Bernd Dammann) Re: Linux Security - C2 and beyond (Ole Ingar Bentstuen) Re: Elf libraries dirty more pages? (Eric Youngdale) Re: ELF Copy-On-Write (Eric Youngdale) Re: Page-granular invalidates - i486+ (Eric Youngdale) Re: mount iso9660 -norock: no UPPER CASE? (Eric Youngdale) Re: dosemu capable of running Windows 3.11 !? ("Jeffrey A. Halverson") dosemu capable of running Windows 3.11 !? (Peter Eggen) gcc 2.7.2 and 1.2.13 kernel (Mark Nordberg) convert c++ to c (Chain-Wu Lee) Re: can't compile with inb(), outb(); linking errors ("Leonard N. Zubkoff") Re: [1.3.47] Undefined reference to `hostbyte' (Alain Knaff) Re: AMD DX4-120 (fbroce) Re: dosemu capable of running Windows 3.11 !? (C. M. Phillips) Linux for Suns (Greg Obremski) Linux on Suns (Randolph Chung) Unusual disk activity under 1.3.45... (Sangria) ---------------------------------------------------------------------------- From: johnsos@holmes.ece.orst.edu (Scott Johnson) Subject: Re: Linux Security - C2 and beyond Date: 16 Dec 1995 07:35:55 GMT In article , Harald Milz wrote: >Heater WONG (heaterw@hkstar.com) wrote: >> >> I think this is a great ideal, build up Linux to C2 security can be an important >> mile stone in Linux world (I think so.) > >As long as there's source code available for Linux and its accompanying >programs such as GCC (and we do love to play with GPL'd software, don't >we?), I don't see any way to get a C2 certification for Linux. Why? Is one of the requirements of C2 security that source code for the applications be unavailable? /sj/ Scott Johnson: S/W Engineer, Linux Kernel Hacker, and All-Around Computer Geek. Check out my new (but unfinished) Web page--http://www.ece.orst.edu/~johnsos -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Shouting only makes you lose your voice. -Arrested Development ------------------------------ From: bernd@lipid.fki.dtu.dk (Bernd Dammann) Subject: zftape doesn't recognize bad segments Date: 16 Dec 1995 14:45:43 GMT Hi, I just got zftape-1.02, and installed it on my system (486-66, Conner TSM420R tape drive). After writing a backup of some data with tar, tar dvf /dev/zqft1 stops with "too many I/O errors". A look in the kernel log gives the following messages: ftape-read.c (_ftape_read) - Segment 19 should contain 28672 bytes, but we got only 29696. and the rest of the backup is unreadable. Going back to ftape-2.02e, I get the following: ftape-rw.c (setup_segment) - segment: 19, bad sector map: 00800000. There is a bad segment on the tape, but zftape somehow doesn't recognize it. Is this a problem with zftape, oor with ftape-2.03, on which zftape is based? BTW, I am using a Sony QIC-Wide 5122F tape. Regards, -- # Bernd Dammann | "Why stop now, # Department of Physical Chemistry | just when I am hating it?" # The Technical University of Denmark |--------------------------------- # Building 206 | phone: (+45) 45 25 24 81 # DK-2800 Lyngby, Denmark | http://www.fki.dtu.dk/~bernd/ ------------------------------ From: obe@alpha.ffi.no (Ole Ingar Bentstuen) Subject: Re: Linux Security - C2 and beyond Date: 17 Dec 1995 14:52:07 GMT Reply-To: obe@ffi.no In article <4avcj4$37n@sol.sun.csd.unb.ca> aa126@fan1.csd.unb.ca (William Burrow) writes: > Scott Johnson (johnsos@holmes.ece.orst.edu) wrote: > : In article , Harald Milz wrote: > : >As long as there's source code available for Linux and its accompanying > : >programs such as GCC (and we do love to play with GPL'd software, don't > : >we?), I don't see any way to get a C2 certification for Linux. > > > : Why? Is one of the requirements of C2 security that source code for the > : applications be unavailable? I don't think availability of sourcecode is of any hindrance to get C2- classification. The problem is that each time someone changes the code, you have to get a new certification. I have understood that getting C2 certification is an expensive and timeconsuming business, so if you decide to try to get C2-certification of a linux-kernel, let say 1.4.0, then I am sure the linux-community would have been at linux-1.8.* before the certification was done. There is also lots of documentation needed to get the certification. Is there anyone working on proper documentation of the linux-kernel/system ? (Sorry about the incorrect English grammar) -Ingar Bentstuen Disclaimer for you US-people: I do NOT talk for my employer or any other person than myself. ------------------------------ From: eric@aib.com (Eric Youngdale) Crossposted-To: comp.os.linux.development.apps,comp.os.linux.misc Subject: Re: Elf libraries dirty more pages? Date: 17 Dec 1995 19:17:49 -0500 In article <30D05A2F.6D21@l13kk.jsc.nasa.gov>, Kirk Shipley wrote: >Under HP-UX, you have the option in the linker of selecting immediate >or deferred binding for the libraries. If you muck with your library >after having built the executable, and you linked it with immediate >binding, you get a well-deserved run-time fault when you try to get >to those changed functions. > >Would something like this be an option for future ELF linking? Actually the feature you are referring to already exists. The default is for lazy binding (i.e. deferred). To get immediate binding, you set the environment variable LD_BIND_NOW=1. This being said, under linux you simply cannot overwrite a library that is in use by some other process. YOu can rename it and replace it, but you cannot remove it until it is no longer in use. Overwriting is still possible, I suppose, but is more or less guaranteed to generate a crash of some kind. -Eric -- "The woods are lovely, dark and deep. But I have promises to keep, And lines to code before I sleep, And lines to code before I sleep." ------------------------------ From: eric@aib.com (Eric Youngdale) Subject: Re: ELF Copy-On-Write Date: 17 Dec 1995 19:21:11 -0500 In article <4av4ul$g30@hahn.informatik.hu-berlin.de>, Martin v. Loewis wrote: >In article , >Studnitzky Boaz wrote: >>Isn't it possible to have the dynamic loader mark the pages where it >>stores dynamic link pointers as non-copy-on-write? > >This is not a good idea. First, if the library is compiled with -fPIC, >there is little or no relocation necessary (are there actual numbers >on the amount of data changed dynamically while loading, say, libc.so?). Actually the thing that is nice about ELF is that all of the parts of a shared library that are modified by the dynamic linker are grouped together into the writable parts of the file. Thus the .text portion of the image is never modified, and can always be shared. Even though the PLT needs to be dynamicly linked for the image to run, it is merely loading addresses out of the GOT. -Eric -- "The woods are lovely, dark and deep. But I have promises to keep, And lines to code before I sleep, And lines to code before I sleep." ------------------------------ From: eric@aib.com (Eric Youngdale) Subject: Re: Page-granular invalidates - i486+ Date: 17 Dec 1995 19:23:04 -0500 In article <4aq4qc$em5@msunews.cl.msu.edu>, Aaron Fredrick Tiensivu wrote: >Can some kind soul explain to me what a page-granular invalidate is? It's >on the '486 and above, and now is taken advantage of in 1.3.47. I was under >the impression that there really wasn't much different between the '386 and >'486. '386 - 2 cycles per instruction, '486 - 1, and a couple new op-codes. The idea is that the processor caches information it obtains from the page tables in order to improve performance. If you modify any of the page tables, you have to tell the processor that something has changed, and that the cache needs to be invalidated. On the i386, you only have the option of invalidating the entire cache, while on the i486 and above you can selectively invalidate portions of the cache. -Eric -- "The woods are lovely, dark and deep. But I have promises to keep, And lines to code before I sleep, And lines to code before I sleep." ------------------------------ From: eric@aib.com (Eric Youngdale) Subject: Re: mount iso9660 -norock: no UPPER CASE? Date: 17 Dec 1995 19:25:16 -0500 In article , Rob Janssen wrote: > >Why not ignore case when the rockridge extensions are off? >(or have some option to do so) > >The "msdos" filesystem also ignores case when opening files but returns >names in lower case when reading the directory. This seems to work >fine. An interesting idea. You would need to be able to turn this off in some cases - there are discs out there (Amiga, I think) that may have mixed case filenames. Admittedly this won't come up often, but the minute you make a change like this, we will find out who is using these discs :-). -Eric -- "The woods are lovely, dark and deep. But I have promises to keep, And lines to code before I sleep, And lines to code before I sleep." ------------------------------ From: "Jeffrey A. Halverson" Subject: Re: dosemu capable of running Windows 3.11 !? Date: Sun, 17 Dec 1995 01:43:43 -0600 Reply-To: halv0019@gold.tc.umn.edu On 17 Dec 1995, Sergei Viznyuk wrote: > In article <1995Dec16.215417.32543@exc.com>, > Joel M. Hoffman wrote: > >>My insightful feeling is both dosemu and WINE are essentially > >>dead, since the WIndoze 95 defeated their purpose. > >>However WINE is more dead than dosemu, since dosemu > >>is kicking as yet.. > > > >Why? What has the release of Windows 95 got to do with the eumlators > >available for Linux? > > well, why would anyone want to run obsolete programs > written for Windoze 3.1 and MSDOG in a year or so? > All new releases are being written for Windoze 95 > which is not supported neither by WINE nor dosemu. MS-DOS (And PC-DOS and FreeDOS for that matter) has its own advantages over running a Windows95 program--- I don't think it will die as easily as you may think it will. To avoid the overhead of the Windows95 interface is crucial for some programs... The windows version of Autocad12 is a dog compared to the DOS version. This is the reason for projects like DOSEMU... As for Wine not supporting windows95 apps, you better check your FAQ. (sorry for the pun) It is a goal for Wine to both run Win95 binaries and to re-compile win95 apps native for linux. Don't ask me when it will be capable, I don't know... But it is most cerainly a goal of the project. From what I understand, much of Win32 is already supported. > > what is the purpose in developing emulator > for an extinct programs? This question doesn't really apply since wine *will* support Windows95 API, but you may wish to ask the creaters of C-64 emulators and Atari 2600 emulators.... (perhaps for nostalgia) > > I think folks who work on dosemu whould think more > about going in for emulator for Windoze 95.. I think this would be an entirely different goal than those that they have set out to do. > > Sergei > > > > > >-Joel > >(joel@exc.com) > > > >-- > >----------------------------------------------------------------------------- > >|_|~~ Germany, Europe. 1940's ``A DISTINGUISHED speaker said that we must put > >__|~| 16 Million DEAD. our children first. We in Bosnia wonder if > > we have any children left. Seventeen thousand > > cnc Bosnia, Europe. 1990's children have been killed in Bosnia in the > > cnc HOW MANY MORE? last three years. Those living, some with > > gray hair and eyes and hearts of old men, are > >``May the world you hardly children any more.'' > > live in be the world - H. Silajdzic > > of your dreams.'' - Debbie Friedman Prime Minister of Bosnia > >----------------------------------------------------------------------------- > > TELL CLINTON TO HELP STOP THE GENOCIDE: PRESIDENT@WHITEHOUSE.GOV > > > > > > > > > > Jeff Halverson ------------------------------ Crossposted-To: comp.os.linux.x,com.os.linux.development.apps From: Peter Eggen Subject: dosemu capable of running Windows 3.11 !? Date: Fri, 15 Dec 1995 09:56:15 GMT Hello, hope this is not a silly question, but I have got some information that the latest version of the Linux DOS-emulator is capable of running at least Windows 3.0, and with some patches against the kernel-dlls even Windows for Workgroups. I have heard something of using the same pathches you need in order to run Windows 3.11 under OS/2 Warp. Does anybody have some information about that?? It seems there are two ways of making Linux to be capable of running Windows, DOS-Emu and Wabi - which succeded first?? Thanks in advance for any answers Peter ------------------------------ From: mark@quickening.catt.ncsu.edu (Mark Nordberg) Crossposted-To: comp.os.linux.misc Subject: gcc 2.7.2 and 1.2.13 kernel Date: 13 Dec 1995 21:40:48 GMT Has anyone else had problems with gcc 2.7.2 and kernel 1.2.13 elf. I compiled the kernel with the following: elf linux 1.2.13 patch noblink patch aic7xxx patch gcc 2.7.1+ patch The elf,noblink and aic7xxx patches had been used previously with gcc-2.7.0 and the machine was stable. Uptime of over 10 days with 20+ users and a 100-200 user irc server running. After upgrading to gcc-2.7.2 and all the new binutils, libc, and everything else, stability went out the window The gcc 2.7.1 patch is the same that has been posted previously, but now the kernel seems unstable. Additionally, I compiled ksmbfs 0.3 with linux 1.2.13 under the gcc 2.7.2 compiled kernel and it would not load complaining the symbols for 1.2.13 did not match 1.2.13! I did the same compile of ksmbfs 0.3 and successfully modloaded a smbfs.o into a gcc 2.7.0 kernel. I seem to think that gcc-2.7.2 has a problem. I am using the precompiled version released to the public. Has anyone else seen this problem? --mark -- Mark Nordberg \ Junior MTE mpnordbe@eos.ncsu.edu \ **Computer And Technologies Theme mark@catt.ncsu.edu \ Program System Administrator mark@scaredy.catt.ncsu.edu \ ** NCSU Linux Users Group Chairman \______________________________________ ------------------------------ From: lee-d@cs.buffalo.edu (Chain-Wu Lee) Subject: convert c++ to c Date: 17 Dec 1995 20:30:53 GMT Hi, is there a way to convert c++ to c program under linux? I heard that cfront does it but I cannot find for linux. Thanks for your help -Lee ------------------------------ From: "Leonard N. Zubkoff" Crossposted-To: comp.os.linux.development.apps Subject: Re: can't compile with inb(), outb(); linking errors Date: 14 Dec 1995 00:34:24 -0800 In article <4ao4dq$l54@lyra.csx.cam.ac.uk> js10039@thor.cam.ac.uk (John Sullivan) writes: 2.7.2 was the latest out when I checked last week. It seems to have severe problems compiling stuff with asm()s (something about incompatible constraints). For example, it doesn't like SVGATextMode, or kernels 1.2.13, 1.3.18. GCC 2.7.0 seems to be safe, and I'd stick with that, I don't think -O2 breaks it either. I believe the problem is in the source code, not GCC. The following patch fixes the problem with GCC 2.7.2 compiling Linux 1.2.13. I believe GCC 2.7.2 has just become more strict in its constraints, compared to earlier versions. Leonard --- ./linux/include/asm-i386/io.h- Mon Aug 15 00:56:19 1994 +++ ./linux/include/asm-i386/io.h Wed Nov 15 23:04:25 1995 @@ -49,9 +49,9 @@ #define __OUT(s,s1,x) \ __OUT1(s,x) __OUT2(s,s1,"w") : : "a" (value), "d" (port)); } \ -__OUT1(s##c,x) __OUT2(s,s1,"") : : "a" (value), "i" (port)); } \ +__OUT1(s##c,x) __OUT2(s,s1,"") : : "a" (value), "id" (port)); } \ __OUT1(s##_p,x) __OUT2(s,s1,"w") : : "a" (value), "d" (port)); SLOW_DOWN_IO; } \ -__OUT1(s##c_p,x) __OUT2(s,s1,"") : : "a" (value), "i" (port)); SLOW_DOWN_IO; } +__OUT1(s##c_p,x) __OUT2(s,s1,"") : : "a" (value), "id" (port)); SLOW_DOWN_IO; } #define __IN1(s) \ extern inline unsigned int __in##s(unsigned short port) { unsigned int _v; @@ -61,9 +61,9 @@ #define __IN(s,s1,i...) \ __IN1(s) __IN2(s,s1,"w") : "=a" (_v) : "d" (port) ,##i ); return _v; } \ -__IN1(s##c) __IN2(s,s1,"") : "=a" (_v) : "i" (port) ,##i ); return _v; } \ +__IN1(s##c) __IN2(s,s1,"") : "=a" (_v) : "id" (port) ,##i ); return _v; } \ __IN1(s##_p) __IN2(s,s1,"w") : "=a" (_v) : "d" (port) ,##i ); SLOW_DOWN_IO; return _v; } \ -__IN1(s##c_p) __IN2(s,s1,"") : "=a" (_v) : "i" (port) ,##i ); SLOW_DOWN_IO; return _v; } +__IN1(s##c_p) __IN2(s,s1,"") : "=a" (_v) : "id" (port) ,##i ); SLOW_DOWN_IO; return _v; } #define __INS(s) \ extern inline void ins##s(unsigned short port, void * addr, unsigned long count) \ ------------------------------ From: knaff@imag.fr (Alain Knaff) Subject: Re: [1.3.47] Undefined reference to `hostbyte' Date: 14 Dec 1995 05:44:49 GMT Reply-To: Alain.Knaff@imag.fr Greg de Freitas (uniques@marque.co.uk) wrote: : habibie@catevr.fiu.edu wrote: : > : > Hi Linuxers, : > : > I just downloaded a copy of Linux kernel 1.3.47 and compiled to no avail. : > The problem is due to "undefined reference to `hostbyte'" in constants.o. : > The following shows where the error is: To work around this problem, comment out the print_hostbyte function in drivers/scsi/constants.c . It seems that it's not called anyways... Alain ------------------------------ From: fbroce Subject: Re: AMD DX4-120 Date: 17 Dec 1995 16:44:30 GMT I am going to play around with the cpu jumpers and will report if this fixes it..As I said before the bios is new and supports and DX120 I have two similiar floppy controllers and both of them act the same.. I did rejumper the original settings to conform to the manual settings for a AMD-dx4-100..maybe it should be jumpered for Intel fb ------------------------------ From: cmphil@panix.com (C. M. Phillips) Crossposted-To: comp.os.linux.x,com.os.linux.development.apps Subject: Re: dosemu capable of running Windows 3.11 !? Date: 17 Dec 1995 22:13:32 -0500 Sergei Viznyuk (sviznyuk@magnus.acs.ohio-state.edu) wrote: : >It seems there are two ways of making Linux to be capable of running : >Windows, DOS-Emu and Wabi - which succeded first?? : ~~~~ : perhaps you meant WINE? : Wabi is for SUN not Linux. Wabi is for more than just SUN. We had it running on our developmental AIX 4.1.2 box. : My insightful feeling is both dosemu and WINE are essentially : dead, since the WIndoze 95 defeated their purpose. : However WINE is more dead than dosemu, since dosemu : is kicking as yet.. Dos emu is great. Many things are working under it and more and more are every time. Wine, for all intents and pursposes is dead. All it could ever really do is run solitaire. ------------------------------ From: root@testweb.fdu.edu (Greg Obremski) Subject: Linux for Suns Reply-To: obremski@alpha.fdu.edu Date: Sun, 17 Dec 1995 19:29:30 GMT Hi all... I'm trying to find out if Linux has a port for Sun's...specifically, a Sun 2/260....'cause i have the opportunity to pick up a Sun (personally, everyone says to stick with a P90, but hey...i need a lamp table anyway)...and i don't necessarily want it to just sit there; i may as well get some use out of it. Thanks a lot, y'all... --- Disclaimer: The opinions expressed herein are those of the author only, and do not necessarily reflect those of his employer. But his teddy bear agrees with him. --- /-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\ Greg Obremski || Fairleigh Dickinson University || # cp /dev/null /etc/passwd Academic Computer Center || # wall Operations Supervisor || The system will be down until University Hall, Room 22 || further notice. Thank you. Teaneck, NJ 07666 || ^D Voice: 201-692-2731 || # echo "The Admin Team is on a Pager: 201-441-6536 || two-week hiatus." > ~/.vacation.msg email: obremski@alpha.fdu.edu || # vacation -I obremski@testweb.fdu.edu || /-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\-/-\ ------------------------------ From: randolph@tausq.resnet.cornell.edu (Randolph Chung) Subject: Linux on Suns Date: 16 Dec 1995 14:42:24 GMT Reply-To: rc42@cornell.edu Does the Linux Sparc code allow it to run on a Sun 3/110? Where can I find relevant information? randolph --- Randolph Chung @..@ mailto:rc42@cornell.edu BioChem/CS student (----) randolph@tausq.ithaca.ny.us Cornell University ( >__< ) randolph@bbs.hkis.edu.hk Ithaca, NY, USA ^^ ~~ ^^ http://tausq.ithaca.ny.us/ ------------------------------ From: sangria@inlink.com (Sangria) Subject: Unusual disk activity under 1.3.45... Date: 18 Dec 1995 03:04:40 GMT Has anyone notice an unusal disk activity under the 1.3.45 kernel? Almost like clock work, I come home from work, sit infront of another machine, and while working, my Linux machine would suddenly start with a barrage of disk activity. This would go on for about 5 minutes and everything would return to normal once again. At the time when this activity is going on, there is nothing running on Linux except a copy of bash, which is sitting idle... -- Sang. ************************************************************* * Sang K. Choe sangria@inlink.com * * http://www.inlink.com/~sangria/index.html * * finger: sang@sangria.inlink.com * ************************************************************* ------------------------------ ** FOR YOUR REFERENCE ** The service address, to which questions about the list itself and requests to be added to or deleted from it should be directed, is: Internet: Linux-Development-System-Request@NEWS-DIGESTS.MIT.EDU You can send mail to the entire list (and comp.os.linux.development.system) via: Internet: Linux-Development-System@NEWS-DIGESTS.MIT.EDU Linux may be obtained via one of these FTP sites: nic.funet.fi pub/OS/Linux tsx-11.mit.edu pub/linux sunsite.unc.edu pub/Linux End of Linux-Development-System Digest ******************************