[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2] xen, kdump: handle pv domain in paddr_vmcoreinfo_note()
On Fri, Apr 14, 2017 at 06:53:36PM +0200, Petr Tesarik wrote: > On Tue, 11 Apr 2017 19:20:08 +0200 > Daniel Kiper <daniel.kiper@xxxxxxxxxx> wrote: > > On Tue, Apr 11, 2017 at 04:59:16PM +0200, Petr Tesarik wrote: > >[...] > > > Tested-by: Petr Tesarik <ptesarik@xxxxxxxx> > > > > > > I copied the complete /proc/vmcore to a directory on disk. Exactly > > > as expected, crash works both without the patch and with the patch, as > > > it does not use VMCOREINFO at all (instead, crash obtains the > > > information from kernel debuginfo directly). > > > > Thanks for doing the tests. I suppose that you have tested HVM guests. > > Not really. I crashed Dom0, which is in turn sent to the hypervisor, so > the result is a complete host dump, including Xen hypervisor data and > all domains. OK. > > IIRC, PV guests are not supported by crash right now due to p2m VMA > > mapping. At least it was an issue some time ago. Is it still valid? > > Yes, this is correct. I tested this behaviour a few weeks ago. Thanks for update. > > Anyway, one guy in Oracle works on fix for that issue and I do review. > > We are going to post it in 2-3 weeks. > > All right. FYI I do not plan to put much effort into it, as my focus has OK. > shifted towards libkdumpfile (https://github.com/ptesarik/libkdumpfile), > and this library can open PV guest dump files without any issues. Great! AIUI, it reminds my idea to make such think. However, I have not have time to make it happen. Is it based on makedumpfile or written from scratch? Do you plan support for Linux kernel dumps and/or Xen ones? Daniel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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