[9fans] Inferno on XMOS
Hello 9fans, Has anyone considered running Inferno on an XMOS system? Their StartKIT is US$15 (plus US$30 PP to Australia, which is a bugbear, otherwise I'd get one), and an 8Mbyte SDRAM slice (their name for an expansion card) is US$40. I seem to remember seeing Inferno live natively in as low as 2Mbyte of RAM. Additionally, the StartKIT provides an RPi 26 pin header for expansion cards developed for the RPi. From what I understand, FreeRTOS has been ported, and modules exist for SPI, UART, I2C, etc. There is also in interboard link port next to the RPi alike port on the StartKIT so one could conceivably have IEEE1588 ethernet on one board (with ethernet slice), and Inferno running on the other board with 8Mbyte of RAM. Or am I barking up the wrong tree here? I have a need for a controller (or two, linked together as the case may have you) that talks ethernet, talks TTL serial, talks SPI, and talks I2C over an RPi alike port. I'd like it to be a hard, real time system, and the XMOS chips are quite deterministic in that regard. Anyway, these are all just thoughts, as mentioned, I could be full of it, I'm not making any guarantees. Thanks all! Shane.
Re: [9fans] Inferno on XMOS
Has anyone considered running Inferno on an XMOS system? I have a startkit, but my thought was to port (some day!) Plan 9 to it. It sounds like I overlooked its small memory footprint, from your message. ++L
[9fans] Booting amd64 9atom hangs on R60, T400 and T410
I am trying to boot Erik's amd64 USB install image[0] on a ThinkPad R60[1] and T400[2]. Boot process hangs after printing: cpu0: spurious interrupt 51, last 50 cpu1: spurious interrupt 51, last 50 R60 picture: http://i.imgur.com/jaGOIbe.jpg T400 picture: http://i.imgur.com/WaYgrYM.jpg Sorry for bad lighting in the T400 picture, screen dims to minimum brightness just as the the kernel prints the last message. I don't have any other machines to test this on. I *think* the same problem happens with a T410[3], but I might remember wrong. I can't test T410 right now. Any tips on how to debug this further? Thanks. [0] http://ftp.9atom.org/other/usbinstamd64.bz2 [1] http://www.thinkwiki.org/wiki/Category:R60 the 15'' model with 1400x1050 [2] http://www.thinkwiki.org/wiki/Category:T400 the model with 1440x900 CCFL [3] http://www.thinkwiki.org/wiki/Category:T410 -- Aram Hăvărneanu
Re: [9fans] Booting amd64 9atom hangs on R60, T400 and T410
On Sun Feb 16 07:28:11 EST 2014, ara...@mgk.ro wrote: I am trying to boot Erik's amd64 USB install image[0] on a ThinkPad R60[1] and T400[2]. Boot process hangs after printing: cpu0: spurious interrupt 51, last 50 cpu1: spurious interrupt 51, last 50 R60 picture: http://i.imgur.com/jaGOIbe.jpg T400 picture: http://i.imgur.com/WaYgrYM.jpg that's messed up! given the spot in the boot order, that looks like the acpi interrupt. it's puzzling that the interrupt would be 51, and it's further puzzling that the machine would hang. i'll try to get something to debug with later today. are there any bios knobs that will change acpi settings on either of these boxes? - erik
Re: [9fans] Booting amd64 9atom hangs on R60, T400 and T410
On Sun, Feb 16, 2014 at 1:46 PM, erik quanstrom quans...@quanstro.net wrote: are there any bios knobs that will change acpi settings on either of these boxes? No, there are not, unfortunately. -- Aram Hăvărneanu
Re: [9fans] Inferno on XMOS
It would be interesting to see Plan 9 running on the 40-node Raspberry Pi 'supercomputer'! http://likemagicappears.com/projects/raspberry-pi-cluster/ Pete On Sun, Feb 16, 2014 at 11:26 AM, lu...@proxima.alt.za wrote: Has anyone considered running Inferno on an XMOS system? I have a startkit, but my thought was to port (some day!) Plan 9 to it. It sounds like I overlooked its small memory footprint, from your message. ++L
[9fans] usbinstamd64 on Dell 3010
Hi, all The same usbinstamd64 (image and physical USB key) on both DELL 3010 and ASUS H61M-K boot regularly till the root is from (il, local)[local!#S/sdu0/fs/ -B 1]: message. On CR confirm crashes saying connect ... boot: can't connect to file server: '#S/sdu0/fs' does not exist IMHO the quality of the USB key could be an issue. After a lot of attempts with very new keys of different brand/size, the same image on the 3010 the boot reaches the init: starting /bin/rc point. Then 10+ minutes of silence, a message too fast to be catched with a camera, and and a 1+ hour black screen. adriano
Re: [9fans] Inferno on XMOS
Quoting Peter Hull peterhul...@gmail.com: It would be interesting to see Plan 9 running on the 40-node Raspberry Pi 'supercomputer'! http://likemagicappears.com/projects/raspberry-pi-cluster/ Pete I'd say that's a groundbreaking new field all its own. Perhaps LPC or subparcomputing khm
Re: [9fans] Inferno on XMOS
On Sun Feb 16 11:38:35 EST 2014, k...@sciops.net wrote: Quoting Peter Hull peterhul...@gmail.com: It would be interesting to see Plan 9 running on the 40-node Raspberry Pi 'supercomputer'! http://likemagicappears.com/projects/raspberry-pi-cluster/ Pete I'd say that's a groundbreaking new field all its own. Perhaps LPC or subparcomputing you jest, but ron built a similar thing with the gumstix and the stagecoach module. iirc, the purpose was to have a machine small and cheep enough to experiment on, not to be a efficient way to bring cycles to bear. obviously the interconnect is going to be the issue. which gives me a very interesting idea on interconnects. - erik
Re: [9fans] usbinstamd64 on Dell 3010
After a lot of attempts with very new keys of different brand/size, the same image on the 3010 the boot reaches the init: starting /bin/rc point. Then 10+ minutes of silence, a message too fast to be catched with a camera, and and a 1+ hour black screen. well that's discouraging. the most likely issue is some vga snafu. does ^T^Tr work? - erik
Re: [9fans] Inferno on XMOS
Quoting erik quanstrom quans...@quanstro.net: obviously the interconnect is going to be the issue. which gives me a very interesting idea on interconnects. The shitty interconnects are the exact reason I have never been interested in the pile of awful crap school of supercomputer design. The only one I've considered wasting money on is the Parallela, but like most of these half-assed products they can't be bothered to produce enough. khm
Re: [9fans] Inferno on XMOS
On Feb 16, 2014, at 8:44 AM, erik quanstrom quans...@quanstro.net wrote: obviously the interconnect is going to be the issue. which gives me a very interesting idea on interconnects. If you mean on the RPi, the choices are rather limited in bandwidth. We need a Beaglebone Black port.
Re: [9fans] usbinstamd64 on Dell 3010
erik quanstrom ha scritto: After a lot of attempts with very new keys of different brand/size, the same image on the 3010 the boot reaches the init: starting /bin/rc point. Then 10+ minutes of silence, a message too fast to be catched with a camera, and and a 1+ hour black screen. well that's discouraging. the most likely issue is some vga snafu. does ^T^Tr work? - erik :-( With another key (same image) all proceed till the choice of the mouse. After the CR, the endless black screen again. ASAP I'll try ^T^Tr an let you know. Some of the delay (usually than 10 minutes) is due to DHCP. I've no DHCP here but probably the problem is not the DHCP. No news about ASUS H61M-K. I'll let you know ASAP Any recent changes in the usbinstamd64 image ? adriano
Re: [9fans] Booting amd64 9atom hangs on R60, T400 and T410
As a comparison, the new pc64 9front kernel works fine on these machines. -- Aram Hăvărneanu
Re: [9fans] Inferno on XMOS
building a small rpi cluster is really easy (i have one with 8-nodes); the trick is having the types of applications that lend themselves to running in parallel (on a relatively slow cpu and ether) and the software to do it. it's probably a good setup to try xcpu on. On Sun, Feb 16, 2014 at 7:09 AM, Peter Hull peterhul...@gmail.com wrote: It would be interesting to see Plan 9 running on the 40-node Raspberry Pi 'supercomputer'! http://likemagicappears.com/projects/raspberry-pi-cluster/ Pete On Sun, Feb 16, 2014 at 11:26 AM, lu...@proxima.alt.za wrote: Has anyone considered running Inferno on an XMOS system? I have a startkit, but my thought was to port (some day!) Plan 9 to it. It sounds like I overlooked its small memory footprint, from your message. ++L
Re: [9fans] usbinstamd64 on Dell 3010
Yes, a few minutes after the CR for mouse selection [USB], ^T^Tr reboots the machine. so the ^T^Tr takes a few minutes to take effect? - erik
Re: [9fans] usbinstamd64 on Dell 3010
erik quanstrom ha scritto: Yes, a few minutes after the CR for mouse selection [USB], ^T^Tr reboots the machine. so the ^T^Tr takes a few minutes to take effect? - erik no, it is quite immediate == a few seconds to see the BIOS boot messages adriano
Re: [9fans] usbinstamd64 on Dell 3010
[568 files] On Sun Feb 16 13:21:50 EST 2014, adriano.vera...@mail.com wrote: erik quanstrom ha scritto: Yes, a few minutes after the CR for mouse selection [USB], ^T^Tr reboots the machine. so the ^T^Tr takes a few minutes to take effect? - erik no, it is quite immediate == a few seconds to see the BIOS boot messages i would diagnose this as most likely an issue with vga. your kernel is clearly running, and receiving interrupts. if you could try interrupting the boot loader by hitting the space bar a few times just after selecting the default boot option. then enter user=none boot this should disable video, and we can see if that is indeed the issue. it could be as simple as your monitor and the vesa bios not coming together on a video mode. - erik
Re: [9fans] usbinstamd64 on Dell 3010
On Sun, 16 Feb 2014 21:01:20 +0100 Adriano Verardo adriano.vera...@mail.com wrote: Do you know how to reliably dd an usb key under win7 ? adriano Win32DiskImager seems to be the usual recommendation in my experience. I'm afraid I can't vouch for its reliability, though. http://sourceforge.net/projects/win32diskimager/ joe
