On Mon, Apr 08, 2002 at 12:00:53AM +1000, [EMAIL PROTECTED] wrote: > Not being on any of the kernel mailing lists, I wouldn't know id the > following subject has come up, and so I thought I'd ask here if anyone > knows of any planned work in this area...
You did google for `Linux Kernel Crash Dumps', no? Anyway, lkcd.sf.net is what you are after. It might get integrated, it might not. You can always petition Alan Cox to include it in RedHat's kernel when is downunder next year. > A friend at Sun remarked that supporting Linux at the enterprise level > is much harder than supporting Solaris, mainly because Linux has no > crash dump facility. That is, when Solaris crashes, it leaves a dump I've only had Solaris crash 5 times (same number as Linux) and have only had it generate a crash dump once. All the other times involved IO code and/or hardware and the machine(s) just spontaneously rebooted. So Linus' thoughts on the desirability of having crash dump code in the kernel is understandable; your friend's comments about support ease with crash dumps isn't though. I don't think I'm alone in having only a 20% successful crash dump on catastrophic failure. > Having lived through a few Linux panics, I have to agree that it has > nothing like this - it has something only marginally better than > Windows NT's blue screen of death. Slightly more than marginally; I'm in the process of restoring a corrupted LVM partition of mine. The LVM code thinks there are more bits to the disk than there really and regularly generates faults. I'm still using my machine despite it having `opps'ed about 45 minutes ago. I can't access the particular partition in question though, I'll need to reboot, but having only that particular subsystem/hardware item be locked off it damn handy. > (At least Linux has ksymoops so > that after you have laboriously copied down a text screen full of hex > numbers, and then typed them in, you can at least get some symbolic > debug info. So it's better than Windows, but it's a painful process.) Normally ksymoops is tied into your logfile stuff so it automagically decodes the entries that got logged without the need for you to copy things down. Even more important is that you can actually look at the code and see where it all went to pieces. > Does anyone know whether something more like Solaris's kind of facility > is being planned for Linux? Hopefully this is more info than you wanted to know. Anand -- `` We are shaped by our thoughts, we become what we think. When the mind is pure, joy follows like a shadow that never leaves. '' -- Buddha, The Dhammapada -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
