| --- | Log | opened Wed Mar 05 00:00:52 2008 |
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| 11:00 | <jdike:#uml> | Hi guys |
| 11:01 | * | caker:#uml pounces |
| 11:02 | <caker:#uml> | http://pastebin.linode.com/565 <-- mem=1500M (or more) hang |
| 11:03 | <jdike:#uml> | yeah |
| 11:04 | <jdike:#uml> | I think I know why |
| 11:04 | <caker:#uml> | !avail |
| 11:04 | <linbot:#uml> | caker: Linode360 - 15, Linode540 - 7, Linode720 - 0, Linode1080 - 0, Linode1440 - 0 |
| 11:04 | <caker:#uml> | we're dangerously close to hitting that on our high end plan :) |
| 11:04 | <jdike:#uml> | OK, I'll get on it |
| 11:04 | <caker:#uml> | actually, sometimes mem=1440 triggers it, but not as frequently |
| 11:05 | <caker:#uml> | that would be great (wasn't trying to pressure you) |
| 11:07 | <jdike:#uml> | hmm |
| 11:07 | <jdike:#uml> | are you sure the 1080s never hit it? |
| 11:07 | <caker:#uml> | Not that's ever been reported or that I've seen |
| 11:07 | <jdike:#uml> | you have dynamically linked UMLs? |
| 11:08 | <jdike:#uml> | (gdb) p/x 0x8048000+1080*1024*1024 |
| 11:08 | <jdike:#uml> | $5 = 0x4b848000 |
| 11:08 | <jdike:#uml> | (gdb) p/x 0x8048000+720*1024*1024 |
| 11:08 | <jdike:#uml> | $6 = 0x35048000 |
| 11:08 | <caker:#uml> | ldd /vbin/kernel/2.6.23.12-linode41 |
| 11:08 | <caker:#uml> | not a dynamic executable |
| 11:08 | <jdike:#uml> | oh |
| 11:08 | <jdike:#uml> | well there goes that theory |
| 11:09 | <jdike:#uml> | I was thinking that physical memory hit the shared libs, at 0x40000000 |
| 11:09 | <jdike:#uml> | which would happen between 720 and 1080 |
| 11:09 | <jdike:#uml> | but it's totally not an issue for statically linked UMLs |
| 11:11 | <jdike:#uml> | how far into the boot does it get? |
| 11:11 | <jdike:#uml> | free |
| 11:11 | <jdike:#uml> | total used free shared buffers cached |
| 11:11 | <jdike:#uml> | Mem: 1507848 38564 1469284 0 3596 22820 |
| 11:11 | <jdike:#uml> | -/+ buffers/cache: 12148 1495700 |
| 11:11 | <jdike:#uml> | Swap: 0 0 0 |
| 11:11 | <caker:#uml> | the good old "VMS: remounting root fs read/write" thing |
| 11:11 | <jdike:#uml> | is it consistent? |
| 11:12 | <caker:#uml> | it's a crapshoot to get it to actually boot .. most of the time it'll spin |
| 11:12 | <jdike:#uml> | total used free shared buffers cached |
| 11:12 | <jdike:#uml> | Mem: 2011848 39368 1972480 0 3496 23716 |
| 11:12 | <jdike:#uml> | -/+ buffers/cache: 12156 1999692 |
| 11:12 | <jdike:#uml> | Swap: 0 0 0 |
| 11:13 | <jdike:#uml> | total used free shared buffers cached |
| 11:13 | <jdike:#uml> | Mem: 2514296 41844 2472452 0 3424 23728 |
| 11:13 | <jdike:#uml> | -/+ buffers/cache: 14692 2499604 |
| 11:13 | <jdike:#uml> | Swap: 0 0 0 |
| 11:14 | <jdike:#uml> | and it dies when I ask for 3G |
| 11:14 | <jdike:#uml> | so it's behaving OK here |
| 11:14 | <caker:#uml> | http://www.theshore.net/~caker/uml/kernels/2.6.23.12-linode41 ? |
| 11:14 | <caker:#uml> | skas3 only, maybe? |
| 11:16 | <jdike:#uml> | that's booting |
| 11:16 | <jdike:#uml> | maybe skas3 |
| 11:17 | <caker:#uml> | easier to debug on a box here? |
| 11:17 | <jdike:#uml> | actually, it's doing what you pasted |
| 11:18 | <jdike:#uml> | just at this point |
| 11:18 | <jdike:#uml> | Starting Avahi daemon... [ OK ] |
| 11:18 | <jdike:#uml> | Starting HAL daemon: [ OK ] |
| 11:18 | <jdike:#uml> | maybe |
| 11:19 | <jdike:#uml> | can you make a binary with symbols and let me try that here? |
| 11:21 | <caker:#uml> | http://www.theshore.net/~caker/uml/kernels/2.6.23.12-linode41-unstripped.gz (29M) |
| 11:25 | <jdike:#uml> | (gdb) bt |
| 11:25 | <jdike:#uml> | #0 0x084bea8b in mmap64 () |
| 11:25 | <jdike:#uml> | #1 0x6624f000 in ?? () |
| 11:25 | <jdike:#uml> | #2 0x00001000 in ?? () |
| 11:25 | <jdike:#uml> | #3 0x00000007 in ?? () |
| 11:25 | <jdike:#uml> | I could have guessed the mmap64 part |
| 11:36 | <jdike:#uml> | odd |
| 11:36 | <jdike:#uml> | somehow, it's killing its stack |
| 11:38 | <jdike:#uml> | I see |
| 11:44 | <jdike:#uml> | I'll rebuild with your config - somehow I'm not seeing this |
| 11:44 | <jdike:#uml> | there's an easy fix, and a more complicated better fix |
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| 12:10 | <jdike:#uml> | caker, http://rafb.net/p/tUDoS316.txt |
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| 14:13 | * | caker:#uml finishes compiling |
| 14:13 | * | caker:#uml boots with mem=2000M ..... success! |
| 14:14 | <caker:#uml> | again .. mem=2000M works |
| 14:14 | <caker:#uml> | and again... |
| 14:14 | <caker:#uml> | jdike: nice job |
| 14:14 | <caker:#uml> | Confirmed-by: Christopher S. Aker <caker@theshore.net> |
| 14:14 | <jdike:#uml> | hehe, non-conformist |
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| 14:26 | * | caker:#uml ponders how to automate UML testing |
| 14:27 | <caker:#uml> | I'd love to figure out how to trigger the sleep/time thing in 2.6.24 |
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| 14:28 | <jdike:#uml> | you know about my Perl UML driver? |
| 14:28 | <caker:#uml> | no? |
| 14:28 | <caker:#uml> | starts/stops umls, etc? |
| 14:28 | <caker:#uml> | cause I have that licked already :) |
| 14:28 | <jdike:#uml> | no |
| 14:28 | <jdike:#uml> | log in, run commands, shut down |
| 14:29 | <jdike:#uml> | ensure the UML has the right config, build one if it doesn't |
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| 14:31 | <caker:#uml> | logs in via console or through networking? If the former, what console setup do you use typically? |
| 14:32 | <caker:#uml> | I've configured a distro to start a kernel build loop on bootup before (rc.local or whatever)... that's about as fancy as I've gotten |
| 14:32 | <caker:#uml> | (and then deployed 20 of them) |
| 14:34 | <jdike:#uml> | on a console |
| 14:34 | <jdike:#uml> | it uses perl Expect to communicate through a pty with the UML |
| 14:34 | <jdike:#uml> | it can do anything a user can do typing at the keyboard |
| 14:36 | <caker:#uml> | yeah .. cool |
| 14:37 | <Magotari:#uml> | I played with something like that in the past, dropped the project in the end. |
| 14:43 | <jdike:#uml> | http://prdownloads.sourceforge.net/user-mode-linux/uml_tests_20040726.tar.bz2 |
| 14:43 | <jdike:#uml> | (apologies for the SF dl link) |
| 14:43 | <jdike:#uml> | I haven't touched it in a long time |
| 14:44 | <jdike:#uml> | there are some subtle bugs that I never solved |
| 14:44 | <jdike:#uml> | Expect is subtle in unexpected ways |
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| --- | Log | closed Thu Mar 06 00:00:37 2008 |
