[9fans] SATA boot failure
hi, using 9atom.iso from Apr 19, installation completes but boot freezes. here is the transcript: cpu0: ... pat: ... ELCR: CC28 pcirouting: ignoring south bridge PCI 0.31.0 8086/2810 oni 0x732 phyno 1, mccv=0x3800, phyv=0x002 #l0: rtl8169: 100Mb parport 0x6800 irq 10 tu 1514:001a9272efe7 #S/sdE: ahci ahci port 0xe80: sss 1 ncs 31 coal 1 mport 3 led 1 clo 1 ems 1 #S/sdE ahci: Sata II with 4 ports 2047M memory, 256M kernel data, 1791m user, 2416 swap <--- here it freezes any hint? thanks, regards, ++pac
[9fans] Fossil robustness
Hi all. I'm building an industrial application hosted by several independent cpu server, each of them booted from a CFlash on sdD0. The application doesn't write on sdD0 and there are no redirection on local files in the cpurc scripts. In this particular situation fossil should be actually used read only so allowing to use write protected CF and/or to suddenly power off the system without damaging the file system. Instead, fossil writes on sdD0 (doesn't boot fom a write protected CF) and the power loss destroy the file system more than fifty-fifty. Unfortunately I cannot guarantee stable/correct operating conditions. Any suggestion ? Thanks in advance adriano
Re: [9fans] Fossil robustness
On 20/04/2010 11:45, Adriano Verardo wrote: Hi all. I'm building an industrial application hosted by several independent cpu server, each of them booted from a CFlash on sdD0. The application doesn't write on sdD0 and there are no redirection on local files in the cpurc scripts. In this particular situation fossil should be actually used read only so allowing to use write protected CF and/or to suddenly power off the system without damaging the file system. Instead, fossil writes on sdD0 (doesn't boot fom a write protected CF) and the power loss destroy the file system more than fifty-fifty. Unfortunately I cannot guarantee stable/correct operating conditions. Any suggestion ? Thanks in advance adriano Fossil is essentially a cache for Venti, the non-Venti special case is what you are attempting to use. Perhaps kfs / cws would be a better choice. Or even booting from a CD.
Re: [9fans] Fossil robustness
Hello Adriano, Have you disabled all snapshotting features? Usiong open -r? How are you starting fossil, what's your configuration? -- John Soros On Tuesday 20 April 2010 12:45:09 Adriano Verardo wrote: > Hi all. > > I'm building an industrial application hosted by several independent > cpu server, > each of them booted from a CFlash on sdD0. > > The application doesn't write on sdD0 and there are no redirection on > local files > in the cpurc scripts. > > In this particular situation fossil should be actually used read only so > allowing > to use write protected CF and/or to suddenly power off the system without > damaging the file system. > > Instead, fossil writes on sdD0 (doesn't boot fom a write protected CF) > and the > power loss destroy the file system more than fifty-fifty. > > Unfortunately I cannot guarantee stable/correct operating conditions. > > Any suggestion ? > > Thanks in advance > > adriano
Re: [9fans] Fossil robustness
maht wrote: On 20/04/2010 11:45, Adriano Verardo wrote: Hi all. I'm building an industrial application hosted by several independent cpu server, each of them booted from a CFlash on sdD0. The application doesn't write on sdD0 and there are no redirection on local files in the cpurc scripts. In this particular situation fossil should be actually used read only so allowing to use write protected CF and/or to suddenly power off the system without damaging the file system. Instead, fossil writes on sdD0 (doesn't boot fom a write protected CF) and the power loss destroy the file system more than fifty-fifty. Unfortunately I cannot guarantee stable/correct operating conditions. Any suggestion ? Thanks in advance adriano Fossil is essentially a cache for Venti, the non-Venti special case is what you are attempting to use. Perhaps kfs / cws would be a better choice. I've made a customized install procedure copying from the standard one. Where can i find a procedure for kfs to copy from? Can kfs be configured to be absolutely insentive to hard power down ? Or even booting from a CD. I've only a CF slot. And, in any case, the environment doesn't allow to use mechanical devices.
[9fans] Character CR in Plan9?
Hi all. I notice that in Plan9 (p9p) the character CR is not represented with '\r'. What I have to use instead? Cheers. pmarin
Re: [9fans] Fossil robustness
John Soros wrote: Hello Adriano, Have you disabled all snapshotting features? Usiong open -r? How are you starting fossil, what's your configuration? Hi, John fsys main open -AWVP -c 3000 srv fossil srv -p fscons on /dev/sdD0/fossil open -r guarantees that fossil doesn't do physycal write at all or prevent only user to w/create files ? After a fatal power down fossil complains about "metadata corruption" or "lost 386/init" or or the corruption of some very first logical sectors. adriano
Re: [9fans] Character CR in Plan9?
On 20 April 2010 13:28, pmarin wrote: > Hi all. > > I notice that in Plan9 (p9p) the character CR is not represented with > '\r'. What I have to use instead? > > Cheers. > pmarin what is it that you wanna achieve? '\n' is almost always what I want... R
Re: [9fans] Fossil robustness
Yes, i've had a lot of problems with fossil when it gets killed. My issue was with wikifs that had some sort of memory leak i suspect, it would fill up the memory, and then fossil would crash and/or get corrupted. I had an idea for a project to use mycroftiv's rootless kernel images and have a script check whether fossil died or what, and if it did reformat it using latest venti snapshot and reopen the root, but i don't know how involved that would be. I would think -r doesn't modify the filesystem if snapshotting is turned off, but i am probably the wrong person to be asked...I currently don't even have my plan9 system installed. HTH On Tuesday 20 April 2010 13:39:59 Adriano Verardo wrote: > John Soros wrote: > > Hello Adriano, > > Have you disabled all snapshotting features? Usiong open -r? > > How are you starting fossil, what's your configuration? > > Hi, John > > fsys main open -AWVP -c 3000 > srv fossil > srv -p fscons > > on /dev/sdD0/fossil > > open -r guarantees that fossil doesn't do physycal write at all or > prevent only user to w/create files ? > > After a fatal power down fossil complains about "metadata corruption" or > "lost 386/init" or > or the corruption of some very first logical sectors. > > adriano
Re: [9fans] Character CR in Plan9?
On Tue Apr 20 08:27:04 EDT 2010, pmarin.m...@gmail.com wrote: > I wanted to remove this character from some files. I tried to do it with > the p9p tr(1) and I noticed that It does not support '\r'. use . (type with compose + X + 000d) - erik
Re: [9fans] Character CR in Plan9?
I wanted to remove this character from some files. I tried to do it with the p9p tr(1) and I noticed that It does not support '\r'.
Re: [9fans] Character CR in Plan9?
here's one way of doing it: open the file in acme, and write in the tag bar: Edit ,s: ::g and execute that (select it with the mouse and button-2 click on it). to get the char, you can simply cp&paste it with the mouse from the file itself. Cheers, Mathieu --- Begin Message --- I wanted to remove this character from some files. I tried to do it with the p9p tr(1) and I noticed that It does not support '\r'. --- End Message ---
Re: [9fans] Fossil robustness
> I've made a customized install procedure copying from the standard one. > Where can i find > a procedure for kfs to copy from? Can kfs be configured to be > absolutely insentive to hard power down ? "absolutely" is too strong. if one turns off atime with kfscmd/atime, it is pretty robust. see mkfs(8) for some tools. but really, just get a ups. you'll be much happier. - erik
Re: [9fans] Fossil robustness
On Tue Apr 20 06:46:54 EDT 2010, a.vera...@tecmav.com wrote: > Hi all. > > I'm building an industrial application hosted by several independent > cpu server, each of them booted from a CFlash on sdD0. > > The application doesn't write on sdD0 and there are no redirection on > local files in the cpurc scripts. > > In this particular situation fossil should be actually used read only so > allowing to use write protected CF and/or to suddenly power off the system > without > damaging the file system. > > Instead, fossil writes on sdD0 (doesn't boot fom a write protected CF) > and the power loss destroy the file system more than fifty-fifty. > > Unfortunately I cannot guarantee stable/correct operating conditions. paqfs(4) seems ideal for this situation. - erik
Re: [9fans] Character CR in Plan9?
2010/4/20 pmarin : > I wanted to remove this character from some files. I tried to do it with > the p9p tr(1) and I noticed that It does not support '\r'. > You can use \x0d or probably sed 's/.$//' -- - yiyus || JGL . 4l77.com
Re: [9fans] Fossil robustness
erik quanstrom wrote: I've made a customized install procedure copying from the standard one. Where can i find a procedure for kfs to copy from? Can kfs be configured to be absolutely insentive to hard power down ? "absolutely" is too strong. if one turns off atime with kfscmd/atime, it is pretty robust. see mkfs(8) for some tools. but really, just get a ups. you'll be much happier. Oh, yes. It's true, but i can't and, in any case I cannot control the operators :-( - erik
Re: [9fans] SATA boot failure
> using 9atom.iso from Apr 19, installation completes but boot freezes. > here is the transcript: > cpu0: ... > pat: ... > ELCR: CC28 > pcirouting: ignoring south bridge PCI 0.31.0 8086/2810 > oni 0x732 phyno 1, mccv=0x3800, phyv=0x002 > #l0: rtl8169: 100Mb parport 0x6800 irq 10 tu 1514:001a9272efe7 > #S/sdE: ahci ahci port 0xe80: sss 1 ncs 31 coal 1 mport 3 led 1 clo 1 ems > 1 > #S/sdE ahci: Sata II with 4 ports > 2047M memory, 256M kernel data, 1791m user, 2416 swap > > <--- here it freezes > > any hint? thanks for the report. i don't have anything at the moment. i see this sometimes on a reboot through /dev/reboot, but never on a cold boot. you don't have pata drives mapped to sata, do you? - erik
Re: [9fans] SATA boot failure
no PATA drives, just SATA-II, it worked before, but stopped to, I thought it was damaged but surface scan was OK, I reinstalled, but the problem persists. it well may be also caused by the fact that I, in the meantime, used that box with linux IDE discs, so I fiddled with BIOS, sory... peter.
Re: [9fans] SATA boot failure
On Tue Apr 20 09:23:42 EDT 2010, tyap...@gmail.com wrote: > no PATA drives, just SATA-II, it worked before, but stopped to, I > thought it was damaged but surface scan was OK, I reinstalled, but the > problem persists. it well may be also caused by the fact that I, > in the meantime, used that box with linux IDE discs, so I fiddled with > BIOS, sory... does resetting bios help? - erik
Re: [9fans] SATA boot failure
> > no PATA drives, just SATA-II, it worked before, but stopped to, I > > thought it was damaged but surface scan was OK, I reinstalled, but the > > problem persists. it well may be also caused by the fact that I, > > in the meantime, used that box with linux IDE discs, so I fiddled with > > BIOS, sory... This sounds exactly like the trouble I initially had on my AMD machine. It turned out there is a bios bug and it is highly sensitive to how the SATA is configured, and whether in ACHI or native IDE mode. I also found it necessary to remove power to clear nvram or memory or something which seemed to maintain state unless power was removed.
Re: [9fans] SATA boot failure
> > does resetting bios help? no. i tried (almost) all combinations that came on my mind.there is also some JMicron SATA option that I recall it caused me problems with this same disk installation some half-a-year ago...Aug 11 2009 actually, the disk stopped to boot with the original native 9 installation, i first thought that the surface was damaged, as i removed it from the box, but the surface check was ok (under windoze, in a supplier company), than i thought that the bootloader in MBR got damaged, so i completely reinstalled from 9atom.iso, as of Apr 19. now i am almost convinced that i must fiddle more with bios, but i have no idea what more to change. regards, peter, aka ++pac
[9fans] Error building 9vx on OS X 10.5.8
9vx cloned from hg repo today. Error early in the build process: libvxc/_exit.c: In function '_exit': libvxc/syscall.h:8: error: can't find a register in class 'BREG' while reloading 'asm' make: *** [libvxc/_exit.o] Error 1 I can't recall if those "can't find a register" errors are due to differences between gcc versions or optimisation settings. Gcc is 4.0.1, I've no idea of the default optimisation options. -- Simplicity does not precede complexity, but follows it. -- Alan Perlis
Re: [9fans] Fossil robustness
Both fossil and kfs seem like the wrong tool for your job. In addition to the robustness questions, they (especially fossil) include features you're not going to get anything out of in your environment. If you use something like paqfs(4) or sacfs(4) (not sure which is more appropriate) you'll get safer operation and have a smaller system as well. PGP.sig Description: This is a digitally signed message part
Re: [9fans] Error building 9vx on OS X 10.5.8
make 9vx/9vx is the first step, but I imagine you'll hit a snag with ucontext.h being deprecated unless _XOPEN_SOURCE is defined.
Re: [9fans] Error building 9vx on OS X 10.5.8
On Tue, Apr 20, 2010 at 10:07 AM, andrey mirtchovski wrote: > make 9vx/9vx is the first step, but I imagine you'll hit a snag with > ucontext.h being deprecated unless _XOPEN_SOURCE is defined. oops, i could be wrong -- it may only be deprecated on snow leopard.
Re: [9fans] Error building 9vx on OS X 10.5.8
On 20 Apr 2010, at 17:08, andrey mirtchovski wrote: On Tue, Apr 20, 2010 at 10:07 AM, andrey mirtchovski wrote: make 9vx/9vx is the first step, but I imagine you'll hit a snag with ucontext.h being deprecated unless _XOPEN_SOURCE is defined. oops, i could be wrong -- it may only be deprecated on snow leopard. make 9vx/9vx worked, thanks. -- Simplicity does not precede complexity, but follows it. -- Alan Perlis
[9fans] 9vx crashing
Just an FYI. I've been working on getting 9vx running on a TinyCoreLinux USB stick, and I have been having 9vx crash in odd ways and wanted to post a note about it. For starters, I am building 9vx from hg source and using the root from 9vx's 2008/7/1 release 9vx-0.12. There are three points of possible interest: 1) the base root does not have libc.a which means that I can compile program, but not link them. 2) I installed Erik's find utility and running it gave the error: find 2062: suicide: sys: trap: invalid opcode pc=0x5001 from inside 9vx, and: invalid opcode ff ff ba at eip 5001 in the linux terminal that spawned it. 3) I was able to resolve both problems by replace the Plan 9 root with one copied from a recent 9atom.iso, however I am not finished testing that though. EBo --
Re: [9fans] 9vx crashing
> 2) I installed Erik's find utility and running it gave the error:
>
> find 2062: suicide: sys: trap: invalid opcode pc=0x5001
>
>from inside 9vx, and:
>
> invalid opcode ff ff ba at eip 5001
>
>in the linux terminal that spawned it.
that pc is in the floating point code. clearly bogus.
as find doesn't do any floating point.
/sys/src/libc/port/strtod.c:139
134continue;
135}
136break;
137case 'e':
138case 'E':
>139if(state == S2 || state == S4) {
140state = S5;
141continue;
142}
143break;
144}
- erik
Re: [9fans] 9vx crashing
> that pc is in the floating point code. clearly bogus. > as find doesn't do any floating point. I have no idea why this is happening, only that it is and it is failing consistently. While I could spend time trying to tracing through the code to figure out what is going on, I have opted for the moment to update the base root I am using as the old one is just shy of two years old, and the newer one seem to run correctly so far. If this problem creeps up again I'll start debugging it in earnest. EBo --
[9fans] updating 9vx root
what is the procedure for either updating the entire 9vx root, or setting up and building all the special customizations to build an up to date system? For background, I am running the newest 9vx/vx32 sources and have tried various combinations of 9vx-0.12 (which is missing libc.a), the full tree that was based on (a "pull -s /" overloads some customized program and renders the root unbootable), root extracted from 9aton.iso (which gives me error messages about not having kfs setup). Thanks and best regards, EBo --
Re: [9fans] updating 9vx root
On Wed, Apr 21, 2010 at 12:49 PM, EBo wrote: > > what is the procedure for either updating the entire 9vx root, or setting up > and building all the special customizations to build an up to date system? > > For background, I am running the newest 9vx/vx32 sources and have tried > various combinations of 9vx-0.12 (which is missing libc.a), the full tree that > was based on (a "pull -s /" overloads some customized program and renders the > root unbootable), root extracted from 9aton.iso (which gives me error messages > about not having kfs setup). > > Thanks and best regards, > have you tried replica/pull? I have not used 9vx for sometime since I got my atom motherboard working natively, But I remember doing a replica/pull to update my 9vx installation. I did get a bunch of permission problem, if you do a search in 9fans archive you should see an advice from andrey on how to fix it. -- http://www.fernski.com
Re: [9fans] updating 9vx root
Fernan Bolando said: > On Wed, Apr 21, 2010 at 12:49 PM, EBo wrote: > > > > what is the procedure for either updating the entire 9vx root, or setting up > > and building all the special customizations to build an up to date system? > > > > For background, I am running the newest 9vx/vx32 sources and have tried > > various combinations of 9vx-0.12 (which is missing libc.a), the full tree > > that > > was based on (a "pull -s /" overloads some customized program and renders > > the > > root unbootable), root extracted from 9aton.iso (which gives me error > > messages > > about not having kfs setup). > > > > Thanks and best regards, > > > have you tried replica/pull? > I have not used 9vx for sometime since I got my atom motherboard > working natively, But I remember doing a replica/pull to update my 9vx > installation. I did get a bunch of permission problem, if you do a > search in 9fans archive you should see an advice from andrey on how to > fix it. sorry I was not clear with the above. Yes, but I used glenda's pull script. I'm looking up andrey's comments now...
Re: [9fans] updating 9vx root
On Wed, Apr 21, 2010 at 1:29 PM, EBo wrote: > Fernan Bolando said: > >> On Wed, Apr 21, 2010 at 12:49 PM, EBo wrote: >> > >> > what is the procedure for either updating the entire 9vx root, or setting >> > up >> > and building all the special customizations to build an up to date system? >> > >> > For background, I am running the newest 9vx/vx32 sources and have tried >> > various combinations of 9vx-0.12 (which is missing libc.a), the full tree >> > that >> > was based on (a "pull -s /" overloads some customized program and renders >> > the >> > root unbootable), root extracted from 9aton.iso (which gives me error >> > messages >> > about not having kfs setup). >> > >> > Thanks and best regards, >> > >> have you tried replica/pull? >> I have not used 9vx for sometime since I got my atom motherboard >> working natively, But I remember doing a replica/pull to update my 9vx >> installation. I did get a bunch of permission problem, if you do a >> search in 9fans archive you should see an advice from andrey on how to >> fix it. > > sorry I was not clear with the above. Yes, but I used glenda's pull script. > > I'm looking up andrey's comments now... > > Around the time Russ first announced 9vx, I remember reading that updating 9vx was very similar to updating a native installation in which case it should be through replica. I dont however remember rendering my 9vx non-bootable after the update, so I am not really sure what is going on your installation. -- http://www.fernski.com
Re: [9fans] updating 9vx root
2010/4/21 EBo : > > what is the procedure for either updating the entire 9vx root, or setting up > and building all the special customizations to build an up to date system? See: http://9fans.net/archive/2008/07/118 I always start from the tree posted in that message, but you can also follow the instructions to start from a cd. -- - yiyus || JGL . 4l77.com
