Top Document: comp.sys.hp.hpux FAQ Previous Document: 8.49 How do I configure the kernel to write corefiles as core. Next Document: 8.51 Is HP-UX free for non-profit users (students, hobbyists, etc..)? See reader questions & answers on this topic! - Help others by sharing your knowledge The tool to read them is called q4, although you can also get some info from adb by going into the the directory and running: # echo "msgbuf+8/s" | adb -m vmunix . Don't forget the dot on the end :-) If you really want to learn as much as possible for a customer about the HP-UX kernel, and so gain some insight as to what's going on inside a dump, then the best thing is to take the "Inside HP-UX" course from HP; it's course number is H5081S. The normal way to deal with crash dumps is to have an HP support contract, and then get their Responce Center to have a look at the dump, ascertain if it's a known problem, and if so tell you which patch(es) you need to apply. Analyzing a crash dump takes a great deal of experience, knowledge and access to the source code for HP-UX and a large data mine full of similar crash dumps. The msgbuf will say something like: data segmentation violation which means: the kernel made a mistake and a pointer to an integer has an odd address (must be an even address). However, this is of no use until you try to unwind why the kernel made this mistake, look at the source code to see if a fix has been made, and finally recommend a patch. Here are a few reasons that you'll see in msgbuf (and also /etc/shutdownlog): freeing free frag freeing free inode This means severe filesystem corruption exists on the disk (not to be confused with I/O errors unless the error is undetected). HPMC This is a hardware failure and a board will have to be replaced. Determining which board is actually easier than finding a patch for a software problem. The vast majority of crash mistakes have been corrected through patches, so you can save your self a lot of time by applying the complete set of patch bundles from your SupportPlus CDROM. Any CD from the past year is a good choice. Or you can download the latest SupportPlus patch bundles from: o <http://www.hp.com/go/softwareinfo/SUPPORT_PLUS> User Contributions:Top Document: comp.sys.hp.hpux FAQ Previous Document: 8.49 How do I configure the kernel to write corefiles as core. Next Document: 8.51 Is HP-UX free for non-profit users (students, hobbyists, etc..)? Single Page [ Usenet FAQs | Web FAQs | Documents | RFC Index ] Send corrections/additions to the FAQ Maintainer: hpux.faq@gmail.com
Last Update March 27 2014 @ 02:11 PM
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