| lamont | jbailey: because on some architecture families (ppc, hppa) there isn't _one_ kernel that works on all supported instances of the architecture. | 12:22 |
|---|---|---|
| jbailey | Okay, so discard that concept then and it can depend on an either or. | 12:28 |
| jbailey | We really need versioned provides. | 12:28 |
| jbailey | Hmm, it could depend on hppa32 | hppa64 or something. | 12:29 |
| jbailey | but still be made by linux-meta so that we have something we can depend on as the installed version. | 12:29 |
| === jbailey gets ready for another attempt to buy appliances. | ||
| fabbione | morning | 06:22 |
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| chmj | fabbione: have you started backporting ipw2100, are u sticking with that solution for now ? | 11:50 |
| fabbione | chmj: i am working on it right now... | 11:50 |
| fabbione | i need to dig into some stuff first | 11:50 |
| chmj | ok | 11:50 |
| fabbione | ok i found a matching set | 12:18 |
| fabbione | ipw2100-1.0.0 with ipw2200-1.0.1 | 12:18 |
| fabbione | they share the same ieee subset | 12:18 |
| fabbione | after that release the ieee has been changed a lot | 12:19 |
| fabbione | that could explain the mess | 12:19 |
| chmj | seems like it | 12:27 |
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| jbailey | fabbione: *poke* | 02:48 |
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| chmj | fabbione: ipw2100 failed | 03:00 |
| fabbione | chmj: how? | 03:00 |
| chmj | strangely | 03:01 |
| chmj | when I boot, dhcp fails | 03:01 |
| fabbione | chmj: i already received 3 reports of it working | 03:02 |
| chmj | it just assigns to a 192.168.0.195 | 03:02 |
| fabbione | chmj: that's not a kernel bug clearly... | 03:02 |
| fabbione | what happens if you do dhcp manually? | 03:02 |
| chmj | when i run dhclient again, it works | 03:03 |
| fabbione | than it's a dhcpd problem or an AP problem | 03:03 |
| fabbione | the driver works | 03:03 |
| chmj | but after I use it for a while, it looses the IP address | 03:03 |
| fabbione | yeah.. dhcpd problem | 03:03 |
| fabbione | check the server | 03:03 |
| fabbione | they are not talking properly | 03:03 |
| chmj | all kern.log says it "no ipv6 routers found" | 03:04 |
| fabbione | yeah.. that's ok.. it means you are not in an ipv6 network | 03:04 |
| chmj | strange becouse it work fine with .10 | 03:08 |
| chmj | no problems whatsoever | 03:08 |
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| Lathiat | Hey Guys, is there any chance of inclusion of the host skas3 patch in ubuntu's kernel? | 06:42 |
| fabbione | no | 06:43 |
| fabbione | all this kind of patches are unmaintanable in the long run | 06:44 |
| Lathiat | right | 06:47 |
| Lathiat | i wonder if the evil module hack is still maintained :) | 06:47 |
| jbailey | Last year, there was a guy who had moved the IDE drivers into userspace at OLS. | 07:33 |
| jbailey | I wonder if that's gotten anywhere? | 07:33 |
| Lathiat | uh, why? | 07:34 |
| Lathiat | one thing thatd be nice to have in userspace is ppp | 07:34 |
| jbailey | Because once you can get something as key as your IDE driver efficiently into userspace, you've got a reasonable model for alot of things. | 07:34 |
| Lathiat | doesnt that mean that your goign to be context switchign all over the joint tho? | 07:35 |
| jbailey | Read in the word 'efficiently' | 07:35 |
| Lathiat | sure, but how can you do it efficiently? | 07:35 |
| jbailey | His tests showed a speed improvement over in-kernel IDE drivers. | 07:35 |
| jbailey | Dunno, he was still doing the research on why it was faster. | 07:35 |
| jbailey | I know how it works in the L4 world, where context switches are cheap. | 07:36 |
| jbailey | On Linux I'm not sure how it would work. | 07:36 |
| Lathiat | so speed improvement in L4 or speed improvement in linux? | 07:36 |
| jbailey | It was entirely in Linux. | 07:36 |
| Lathiat | hm | 07:36 |
| jbailey | The only research *i've* done on userspace drivers was in the context of Hurd and L4. | 07:36 |
| Lathiat | What are the benefits of having this in user space? | 07:37 |
| jbailey | IDE drivers? Very little. Drivers in general? Fewer needs for custom kernels. | 07:37 |
| Lathiat | right | 07:37 |
| Lathiat | itd be nice to have things like ppp in userspace | 07:37 |
| Lathiat | so things like the mpppe kernel module dont need to exist | 07:37 |
| jbailey | Yup. | 07:38 |
| Lathiat | and then morton doesnt need to sneak them in with other stuff ;) | 07:38 |
| jbailey | I can see it being possible that the speed up was from some user->user buffer optimisation with userspace file system so that context switch penalty is negated. | 07:39 |
| jbailey | But that wouldn't do anything for streams/character devices. | 07:39 |
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