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| 10:49.23 | roxfan | hm, "The latest version of CMSIS is introducing a new CMSIS-RTOS API aiming to provide a standardized interface to existing RTOS kernels" |
| 11:13.21 | roxfan | http://www.onarm.com/cmsis/download/19/version-3-0-preview-of-the-cortex-microcontroller-software-interface-standard-cmsis/ |
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| 15:27.37 | slashbeast | I have weird issue, when I do ifconfig eth0 up or ip linu set dev eth0 up in initramfs (busybox), it does hang |
| 15:27.47 | slashbeast | but the same thing works in KVM virtual machine |
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| 15:39.30 | landley | Thingy. |
| 15:39.52 | slashbeast | landley: ohai |
| 15:40.09 | slashbeast | landley: I have problem with busybox I think, ifconfig eth0 up hangs, the same goes for ip link set dev eth0 up |
| 15:40.26 | slashbeast | but after system boots, I can use the same busybox binary to up/down it without issues |
| 15:40.53 | landley | How are you ifconfigging the interface before the system boots? |
| 15:41.05 | slashbeast | from the initramfs's shell. |
| 15:41.22 | slashbeast | the script works just fine in KVM Virtul Machine |
| 15:41.27 | slashbeast | but it hangs on my real system |
| 15:41.46 | landley | Sounds like a driver issue. Bisect your way through the init script to see which line of init is poking the driver so that it no longer hangs. |
| 15:41.58 | landley | Might be a module load, or firmware load, or some such. |
| 15:42.03 | slashbeast | the line is: ifconfig eth0 up |
| 15:42.07 | slashbeast | or ip (iproute2) |
| 15:42.08 | landley | Or ethtool. |
| 15:42.10 | landley | Or... |
| 15:42.11 | slashbeast | I can drop myself to shell |
| 15:42.16 | slashbeast | and run ifconfig eth0 up |
| 15:42.17 | slashbeast | and it hangs |
| 15:42.21 | slashbeast | I can't ^C it |
| 15:42.26 | landley | slashbeast: you're saying that before the init script runs, yo uget one behavior. After the init script runs, you get another behavior. |
| 15:42.33 | landley | Something the init script did changed the behavior. |
| 15:42.43 | landley | Find out what in the init script is changing the behavior. |
| 15:42.45 | slashbeast | I am saying that from initramfs level brigning eth0up hangs |
| 15:42.49 | slashbeast | but on booted system it works |
| 15:43.37 | landley | So if you copy the busybox binary from initramfs to /root and "switch_root /root/busybox ash" and then do it again, you get different behavior? |
| 15:44.01 | landley | That _just_ the chroot() is causing a behavior difference? |
| 15:44.03 | slashbeast | errr no, after switch_root to real system (gentoo), I can login and use it |
| 15:44.12 | landley | Yes, after gentoo ran its init scripts. |
| 15:44.17 | landley | Which are causing a behavior change. |
| 15:44.20 | landley | See above. |
| 15:44.36 | slashbeast | it does work in VM, which make it my platform dependent |
| 15:44.49 | landley | It's a driver issue, ifconfig should never hang. |
| 15:44.53 | landley | But the init scripts have some workaround. |
| 15:45.07 | landley | Which might be a driver load, might e a firmware load, might be a call to ethtool, might be some echo into /proc or /sys... |
| 15:45.18 | landley | Or who knows what magic thing they're doing. |
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| 15:45.42 | landley | Unless you're saying "what I run in gentoo isn't busybox ifconfig", so your bug report is actually "busybox ifconfig fails, gentoo's ifconfig works"... |
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| 15:45.57 | landley | But I think you said the busybox one works inside gentoo once it's up, unless I misread... |
| 15:46.20 | landley | If the busybox one _never_ works, even after gentoo's up, then it's probably a busybox bug, yes. |
| 15:46.27 | landley | If the behavior changes, there's a reason for it. |
| 15:47.02 | landley | (Sorry for being abrupt, juggling ~5 things right now... Must go do those now.) |
| 15:51.24 | slashbeast | landley: don't worry. Anyway doing ifconfig eth0 up & and then running 'ifconfig' hang as well |
| 15:51.34 | slashbeast | I wonder if there is a way to make it print on screen what it is doing |
| 15:52.32 | landley | slashbeast: strace |
| 15:53.11 | landley | http://landley.net/aboriginal/bin |
| 15:53.42 | slashbeast | awesome as alwayus |
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| 16:02.49 | slashbeast | very odd, it hang on 'ioctl(3, SIOCSIFFLAGS |
| 16:19.38 | landley | slashbeast: dunno. Kernel list? |
| 16:19.51 | landley | The driver isn't coming back from an ioctl, and presumably blocking in D state. |
| 16:19.54 | landley | That sounds wrong-ish. |
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| 17:31.34 | MonMotha | slashbeast: indeed that sounds like a driver problem if it's blocking on an ioctl that presumably shouldn't block for an extended period of time |
| 17:32.14 | MonMotha | if you're feeling particularly adventurous, you could go grab the source to the driver in question, find the ioctl that's being issued, and see what it does and why it's blocking |
| 17:32.36 | MonMotha | do you know if it deadlocks the entire system (sounds like no) or just sits there forever not returning? |
| 17:34.02 | slashbeast | MonMotha: sits there forever returning nothing. its r8169 driver. |
| 17:34.53 | MonMotha | slashbeast: then I guess grab the source for that driver and dive down the rabbit hole |
| 17:37.59 | slashbeast | now I wonder why it work after system boots, maybe udev have some fancy rules for it |
| 17:41.42 | MonMotha | slashbeast: could be. It's also possible that e.g. some other driver is loaded that's actually a dependency but not marked as such (and so isn't autoloaded with the original module), for example |
| 17:41.52 | MonMotha | usually that would cause missing symbols, but who knows |
| 17:42.15 | slashbeast | I am getting a lot of mismatches while building kernel, could be it? |
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| 17:42.36 | slashbeast | when I look at my lsmod there is nothing what may have anything to do with this driver. |
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| 20:42.48 | prpplague | grumbles at git |
| 21:06.31 | landley | git's UI is annoying. |
| 21:20.15 | calculus | I like it |
| 21:20.24 | calculus | git add -i is decent |
| 21:24.37 | mnemoc | didn't know add -i |
| 21:24.50 | mnemoc | only rebase -i |
| 21:25.48 | florian | I do not really like the UI... but below its a very cool piece of software. |
| 21:38.07 | prpplague | i keep complaining about a specific issue inside TI's development teams.... |
| 21:38.19 | prpplague | tell me if i am out of line on this |
| 21:38.55 | prpplague | if you add a new feature in the kernel config, that can be turned on/off, it MUST work with it turned on or turned OFF |
| 21:38.59 | prpplague | is that too much to ask? |
| 21:42.28 | florian | :-) |
| 21:43.38 | florian | I do not know that much about TI but looking at the OE recipe for making a Beagleboard kernel work I wonder about a Linux strategy ;-) |
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| 22:21.59 | prpplague | attempts a rebase |
| 22:29.15 | florian | prpplague: good luck :) |
| 22:29.22 | prpplague | failed |
| 22:29.41 | florian | darn ;) |
| 22:41.58 | MonMotha | I've actually been quite surprised at just how GOOD git is at rebasing |
| 22:44.54 | prpplague | MonMotha: yea well the TI is fscked |
| 22:49.15 | MonMotha | prpplague: still hanging out with the TI folks? |
| 23:09.37 | prpplague | yea |