| 00:38.48 | CapnKernel | Can anyone help me work out the right args for mkfs.jffs2 for my NAND flash chip please? |
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| 06:26.16 | CapnKernel | Got a problem that when I choose to use an external toolchain with buildroot, my rootfs doesn't have a /lib/ld-uClibc.so.0 file. What copies /lib/ld-uClibc.so.0 from the toolchain into project_build_$ARCH/$BOARD/root/lib? |
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| 09:06.58 | shriram | when i try to boot linux kernel it spends a lot of time (2 seconds or more) after the message "Starting Kernel" |
| 09:07.07 | shriram | how does one debug this? |
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| 09:29.09 | cdm | shriram, is it a compressed kernel? |
| 09:29.44 | shriram | it is a uImage (u-boot image) |
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| 09:30.21 | shriram | it is a compressed kernel |
| 09:30.57 | cdm | then that is totally normal. |
| 09:31.08 | cdm | what kind/class of machine are you booting? |
| 09:31.27 | shriram | when i say bootm (it says image type is uncompressed) |
| 09:31.41 | shriram | im using a custom built omap board (arm board) |
| 09:32.06 | Xride | what could i be doing wrong, when with an updated buildroot my kernels start to become 4 times as big? |
| 09:32.16 | Xride | arm926 |
| 09:32.49 | shriram | arm11 |
| 09:32.57 | shriram | sorry |
| 09:33.25 | cdm | shriram, well if you turn on your cache before jumping into the kernel it might be faster. |
| 09:33.37 | cdm | but I am pretty sure uboot, in all it's craptasticness, doesn't do that. |
| 09:34.11 | shriram | cdm: http://www.pastebin.ca/1199847 |
| 09:34.19 | shriram | it says uncompressed kernel |
| 09:34.52 | cdm | still probably relocates it |
| 09:36.07 | shriram | The problem is between Starting kernel and first line (where it prints kernel version) - it takes 3 seconds |
| 09:36.34 | shriram | what happends before Linux-2.6.25 blah blah...? |
| 09:36.55 | cdm | the loader is running that relocates the kernel... |
| 09:37.01 | cdm | there is a bit of code at the start of the kernel. |
| 09:37.10 | cdm | and if the caches are off, it's gonna be super super slow |
| 09:37.51 | shriram | and it should be enabled at the bootloader level? |
| 09:38.04 | shriram | does enabling it in kernel make any difference? |
| 09:38.34 | cdm | sure, afterwards |
| 09:38.40 | cdm | the kernel will come in and reset all the cache settings |
| 09:38.56 | cdm | but the bootloader has to set it up if you want that initial bit of code to run with it turned on. |
| 09:39.17 | shriram | okay will check the bootloader |
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| 14:50.19 | jackal|work | penguin on my LCD goes off after sometime even though i have not disabled backlight. i can see the cursor blinking after it goes off |
| 14:50.25 | jackal|work | is this normal behaviour? |
| 14:53.07 | prpplague | jackal|work: you have to provide more info as to the arch, platform and devices you are working with for someone to answer that |
| 14:53.40 | jackal|work | it is a custom build arm board |
| 14:53.46 | jackal|work | arm1136 |
| 14:54.04 | jackal|work | i see PM is turned off |
| 14:55.01 | prpplague | most likely the root file system started an application that cleared the fb console screen |
| 14:55.17 | prpplague | if you still see a blinking curse, that means the lcd is still running |
| 14:55.54 | jackal|work | are there any standard apps to clear the fbconsole screen? |
| 14:56.29 | jackal|work | not sure if an app did that - will check |
| 14:58.27 | jackal|work | prplague: thanks, i gtg now |
| 15:11.28 | HcE | anybody seen this; dnsmasq: setting capabilities failed: Invalid argument |
| 15:11.32 | HcE | dnsmasq 2.45 |
| 15:11.50 | mnemoc | run it as root maybe? |
| 15:12.41 | HcE | hmm, I'll try |
| 15:13.32 | HcE | nope |
| 15:14.06 | mnemoc | strace will tell you in detail what failed |
| 15:17.09 | HcE | <PROTECTED> |
| 15:17.22 | HcE | and manpage says |
| 15:17.24 | HcE | EFAULT Bad memory address. Neither of hdrp and datap may be NULL. |
| 15:20.28 | HcE | ARGH |
| 15:20.31 | HcE | my eyes hurt |
| 15:20.35 | HcE | bad bad bad code! |
| 15:25.53 | mnemoc | :) |
| 15:26.45 | HcE | i dislike code which has tons of whitespace damage :/ |
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| 15:33.47 | HcE | hmm, running in no-fork works |
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| 15:35.11 | HcE | huh |
| 15:35.14 | HcE | it forks twice |
| 15:35.57 | mnemoc | forks twice in no-fork mode? |
| 15:51.59 | HcE | nah |
| 15:52.14 | HcE | a bit unsure why it does that, but I guess it makes some kind of sense |
| 15:54.50 | mnemoc | all this "daemonize" idea makes no sense to me |
| 16:00.08 | HcE | hmmm |
| 16:00.17 | HcE | perhaps I miss some pipe stuff in my uClibc |
| 16:01.43 | HcE | nope |
| 16:01.45 | HcE | weird |
| 16:01.53 | HcE | something icky with the fork() and pipe() stuff |
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| 16:28.22 | HcE | problem identified |
| 16:28.27 | HcE | prctl(PR_SET_KEEPCAPS, 1) returns -1 |
| 16:28.34 | HcE | wonder why |
| 16:35.21 | mnemoc | running as root? |
| 16:35.31 | HcE | yes |
| 16:35.43 | HcE | I could double check if I indeed am root |
| 16:36.42 | HcE | jupp, UID 0 |
| 16:36.44 | HcE | weird |
| 16:36.48 | mnemoc | then it sounds like a libc bug :( |
| 16:37.03 | HcE | the same code works for dnsmasq 2.42 |
| 16:37.26 | mnemoc | uhm |
| 16:37.43 | mnemoc | dropping priviledges earlier maybe? |
| 16:45.56 | HcE | not as far as I can tell |
| 16:51.06 | HcE | http://bugzilla.kernel.org/show_bug.cgi?id=10748 |
| 16:51.07 | HcE | hmmm |
| 16:51.20 | HcE | but weird dnsmasq 2.42 works, and 2.45 does not |
| 16:56.27 | mnemoc | uh |
| 17:04.54 | HcE | started hacking on the kernel as well |
| 17:05.01 | HcE | oh the joy |
| 17:05.22 | mnemoc | be glad it's not a closed RTOS :p |
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| 17:09.08 | HcE | oh yes, I get hit by the bug |
| 17:09.16 | HcE | for some reason the "secure" prctl overrides |
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| 23:38.07 | CapnKernel | Got a problem that when I choose to use an external toolchain with buildroot, my rootfs doesn't have a /lib/ld-uClibc.so.0 file. What copies /lib/ld-uClibc.so.0 from the toolchain into project_build_$ARCH/$BOARD/root/lib? |