[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] xm pause <domain>
> > You went over to another dump format for the DFly checkpointing, then? What > format does DFly / FreeBSD use for crash memory dumps? > Sorry for not responding sooner. I had to refresh my memory a bit. We store the info for the vnode of the executable, the signal handling dispositions, and the info for the open file handles right after the normal coreheader. The offsets for all the standard mappings is updated to reflect the new information being added in. Thus, GDB still just works. I believe that I wrote the following: /* * put extra cruft for dumping process state here * - we really want it be before all the program * mappings * - we just need to update the offset accordingly * and GDB will be none the wiser. */ if (error == 0) error = elf_puttextvp(p, target); if (error == 0) error = elf_putsigs(p, target); if (error == 0) error = elf_putfiles(p, target); > > This would be cool stuff to have both for developing and for debugging crashes > in the field. Xend could fairly easy be modified to auto-dump crashed > domains, and to dump domains on request. I like :-) I've written the code for a generic xen guest coredump, I'll write a separate tool to post-process the header into something either LKCD or FreeBSD's gdb will recognize. Now the question is, can you give me some guidance on adding it into xend - it doesn't look as straightforward as I had hoped. -Kip ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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