| infinity | BenC: Yeah, zinc's having a hissy fit. | 00:29 |
|---|---|---|
| infinity | BenC: I wouldn't hold my breath on a resolution before Monday. | 00:30 |
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| DNS | heya:) have a question about the kernel source. is all in ubuntu and include/uapi folder on a free license? | 06:08 |
| yf-geek | I have a question, when building pae kernel, what things should I watch out for? | 06:19 |
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| yf-geek | it seems like the normal i386 builds takes longer than the pae version | 06:22 |
| yf-geek | i mean the compilation time is much longer | 06:22 |
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| dontknow | i cant enter http://kernel.ubuntu.com could you verify | 09:46 |
| dontknow | where can i download ubuntu kernel patches | 09:50 |
| ohsix | on launchpad, where bzr trees are also available | 09:51 |
| dontknow | ohsix: i don't know what to download, could you sent me the direct link for that, i would appreciate | 09:52 |
| ohsix | how do you know you need kernel patches then? | 09:53 |
| dontknow | ohsix: i dont | 09:54 |
| lifeless | heh | 10:10 |
| tyf | hi all, do I need any special configuration to build a pae kernel? using the latest edition in precise | 10:30 |
| tyf | it seems like the normal kernel needs a much longer time to build? | 10:30 |
| tyf | the pae is faster to finish compilin | 10:31 |
| tyf | g | 10:31 |
| infinity | tyf: Why do you need to build a PAE kernel; we provide one... | 10:52 |
| tyf | i need to build a debug version of the kernel, which is not available as a binary version | 10:53 |
| tyf | it suffers complete lockup randomly | 10:53 |
| tyf | even the magic sysrq key cannot do anything | 10:53 |
| infinity | http://ddebs.ubuntu.com/pool/main/l/linux/linux-image-3.2.0-33-generic-pae-dbgsym_3.2.0-33.52_i386.ddeb <-- Debug symbols for the distro kernel. | 10:54 |
| ohsix | yea, ddebs has the debug symbols stripped from any built package | 10:57 |
| ohsix | you can add it as a source and install them with apt-get, and there's a script to grab debug symbols automatically but i forget the name of it | 10:58 |
| infinity | Hrm. Looks like my routing across the Atlantic finally got fixed. | 10:59 |
| infinity | 100%[==========================================================>] 668,691,426 11.2MB/s in 91s | 10:59 |
| infinity | I can live with 11.2MB/s from London to Calgary. | 10:59 |
| infinity | Oh, or macquarie's just on a different link than archive. | 11:00 |
| tyf | hey, i do i use the debug symbols? i am quite new to kernel compiling | 11:01 |
| tyf | *how do i | 11:01 |
| infinity | It's entirely possible that, in the kernel's case, the ddeb just contains the unstripped/debug version of the kernel, rather than detached symbols. | 11:05 |
| infinity | apw: ^? | 11:06 |
| infinity | tyf: Assuming that's the case, you'd just install the above package (or, the one matching your distro kernel) with "dpkg -i foo.ddeb", cp /boot/vmlinuz-$(uname -r) /boot/vmlinuz.backup; cp /usr/lib/debug/vmlinuz-$(uname -r) /boot | 11:08 |
| infinity | tyf: Potentially doing the same for the modules, if you want debug versions of those too. | 11:08 |
| infinity | tyf: After installing the ddeb, "dpkg -L package_name" to see what it installed and where. | 11:08 |
| tyf | what can the debug package above do more than increased verbosity of kernel log? | 11:18 |
| tyf | infinity:^ | 11:19 |
| infinity | Well, it can do a lot of useful things if you plan to attach a debugger... | 11:24 |
| infinity | I'm getting the impression this might not be what you meant by "debug your kernel" at all. | 11:24 |
| ohsix | perf and other tools can see what symbols are near what addresses and unwind stacks too | 11:29 |
| tyf | infinity: actually i don't have the experience of attaching a debugger to the kernel. I am just trying to make the kernel to generate more logs during the course of system freeze. Now i don't have a clue what might be happening in the system! | 11:55 |
| tyf | i checked the syslog and kern logs but couldn't find any log at the moment when freeze happened | 11:56 |
| tyf | no messages like "soft lockup detected" and "hard lockup detected" messages are found | 11:56 |
| tyf | fyi, i am not developing the kernel...i am just trying to help out the developers as a end user | 12:07 |
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| apw | infinity, indeed the .ddebs are unstripped complete kernel .ko's et al | 15:17 |
| infinity | apw: S'what it looked like from the file list, but I've never used one. | 15:21 |
| tyf | so, what is the best i could do as a user to help kernel developers? | 15:24 |
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