| --- | Log | opened Mon Apr 14 00:00:11 2008 |
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| 10:18 | <jdike:#uml> | Hi guys |
| 10:22 | * | jdike:#uml awaits a status report from fo0bar |
| 10:23 | <jdike:#uml> | assuming he's vaguely healthy today |
| 10:23 | <caker:#uml> | 22:11 < fo0bar> caker: jdike's solution has been rockin for me. you may want to try it out, even though it sounded like your problem was different |
| 10:23 | <jdike:#uml> | excellent |
| 10:23 | <jdike:#uml> | it does sound like you have a different problem |
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| 10:25 | <jdike:#uml> | need to rescue my patch from fo0bar's dev machine and prepare it for the cold, cruel, world |
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| 11:18 | <caker:#uml> | jdike: ntp on the host triggered the fo0bar bug, right? |
| 11:18 | <jdike:#uml> | yes |
| 11:20 | <jdike:#uml> | sorry |
| 11:20 | <jdike:#uml> | ntp in the guest, not host |
| 11:46 | <unlink:#uml> | after my VM has been running for awhile, top stops reporting CPU usage (everything is 0), various programs behave erratically (for example, vim crashes), and when i try to init 0, it freezes halfway through and i have to pkill linux |
| 11:47 | <jdike:#uml> | version? |
| 11:47 | <jdike:#uml> | anything in dmesg? |
| 11:47 | <unlink:#uml> | Linux legacy-test 2.6.24 #2 Sun Feb 3 12:54:57 UTC 2008 x86_64 |
| 11:49 | <unlink:#uml> | nothing in dmesg or syslog that i can tell |
| 11:50 | <jdike:#uml> | how does vim crash? |
| 11:50 | <unlink:#uml> | it simply stops responding |
| 11:50 | <jdike:#uml> | what hangs when you try to shut it down? |
| 11:50 | <jdike:#uml> | that's a hang, not a crash |
| 11:50 | <jdike:#uml> | have you tried getting a sysrq t from it? |
| 11:50 | <unlink:#uml> | i meant the vm itself hangs when i try to shut it down |
| 11:51 | <jdike:#uml> | as opposed to a shutdown script hanging? |
| 11:51 | <unlink:#uml> | it's hard to tell exactly what is hanging |
| 11:51 | <unlink:#uml> | because the VM doesn't respond to anything |
| 11:52 | <jdike:#uml> | it doesn't ping? |
| 11:52 | <unlink:#uml> | no |
| 11:52 | <jdike:#uml> | or respond to mconsole requests? |
| 11:52 | <unlink:#uml> | haven't tried that |
| 11:52 | <jdike:#uml> | a sysrq t is probably the most useful thing I could see at this point |
| 11:53 | <jdike:#uml> | or a stack trace if it doesn't respond to mconsole |
| 12:16 | <fo0bar:#uml> | jdike: yes, patch is working great |
| 12:19 | <jdike:#uml> | cool |
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| 17:50 | <fo0bar:#uml> | jdike: I hate to ask you this, but are you fairly confident at this point that SKAS4's runtime interface will be compatible with what will eventually be merged upstream? |
| 17:50 | <jdike:#uml> | no |
| 17:50 | <fo0bar:#uml> | ok |
| 17:50 | <jdike:#uml> | don't even think about committing yourself to that ABI |
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| 17:51 | <jdike:#uml> | for one thing, the system call numbers are likely to be different |
| 17:51 | <jdike:#uml> | even if the whole thing is otherwise taken as-is |
| 17:53 | <fo0bar:#uml> | I'm building 2.6.24 kernels thinking "oh, if/when the abi changes, and I need to use these guests with future generations of hosts, I'll just force it into mode=skas3" |
| 17:53 | <fo0bar:#uml> | except I just noticed there is no mode=skas3 |
| 17:54 | <jdike:#uml> | that's easy to add |
| 17:54 | <jdike:#uml> | and should probably be there anyway |
| 17:54 | <jdike:#uml> | and I think it can be synthesized with no*, with * being the skas4 features |
| 17:56 | <fo0bar:#uml> | ok, I'll check that out in a bit |
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| 18:10 | <fo0bar:#uml> | looks like disable_switch_mm and disable_ptrace_switch_mm do not have corresponding no* command line options, but it shouldn't be hard to add |
| 18:48 | <fo0bar:#uml> | http://www.pastebin.ca/985335 <-- mode=skas3 |
| 19:02 | <jdike:#uml> | does it seem to do the skas3 thing? |
| 19:05 | <fo0bar:#uml> | how can I tell the difference between skas3 and skas4 on a running kernel? |
| 19:05 | <jdike:#uml> | ls its /proc/*/fd directory |
| 19:05 | <jdike:#uml> | if there are /proc/mm references, then it's skas3 |
| 19:06 | <jdike:#uml> | if there are [mm:xxxxxx] references, it's skas4 |
| 19:07 | <fo0bar:#uml> | ok, by itself I'm getting a lot of [mm:xxxxxx] references |
| 19:07 | * | fo0bar:#uml reboots into mode=skas3 |
| 19:07 | <fo0bar:#uml> | this is a hybrid skas3/skas4 host, of course |
| 19:08 | <fo0bar:#uml> | yep, /var/lib/uml/guests/itdev1.thna.net/proc/mm |
| 19:09 | <fo0bar:#uml> | I'll clean this up a bit, test noswitchmm and noptraceswitchmm individually (which I just added), and send it to uml-devel |
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| 19:26 | <jdike:#uml> | cool |
| 19:26 | <jdike:#uml> | those switches are getting kinda long |
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| 20:17 | <fo0bar:#uml> | sent |
| 20:17 | <fo0bar:#uml> | ... 2 minutes too late |
| 20:18 | <fo0bar:#uml> | (isn't it ironic? don't you think?) |
| 20:19 | <caker:#uml> | like rain. on your wedding day |
| 20:20 | <caker:#uml> | irony is a song that's not about irony |
| 20:27 | <fo0bar:#uml> | it's interesting how to me he seems to keep a rigid 9-5 shift... until I realize that's 9-5 pacific, and he's actually leaving at 8PM every day |
| 20:28 | <caker:#uml> | yeah .. he usually starts late (11-12), but lately he's been on around 9 or so .. and staying later |
| 20:28 | <fo0bar:#uml> | he works from home, yes? |
| 20:28 | <caker:#uml> | I believe so (talk about dicipline) |
| 20:30 | <fo0bar:#uml> | totally. I would never been that good. by contrast, look at akpm or linus, who commit things at all hours of the day and night |
| 20:30 | * | fo0bar:#uml packs up and heads out to finish packing at the old home |
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| 21:37 | <Kingsy101:#uml> | anyone around? |
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| --- | Log | closed Tue Apr 15 00:00:27 2008 |
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