[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Error booting Xen
Hi guys, I tried the patch and I am very happy to inform you all that the patch has solved my problem. Now I am able to boot Xen without disabling XSAVE. I have full log of boot at http://paste2.org/gVW0Z9nm (if any one is interested. also "XXX Hello, this is my first mod :)" is printed by my mod, so ignore that one). Thank you guys for your help. Regards, Harman On Mon, Jan 25, 2016 at 7:12 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote: >>>> On 21.01.16 at 16:14, <dario.faggioli@xxxxxxxxxx> wrote: >> On Wed, 2016-01-20 at 03:06 -0700, Jan Beulich wrote: >>> > > > On 19.01.16 at 20:55, <write.harmandeep@xxxxxxxxx> wrote: >>> > >>> > $ 'addr2line -e xen-syms ffff82d0801c1cce' returns >>> > 'xen/xen/arch/x86/xstate.c:387' which again points to >>> > xsave. Also, adding 'xsave=0' makes it boot just fine. >>> >>> Ah, I think I see the issue: We're zeroing the entire save area in >>> the fixup code, which will make XRSTORS fault unconditionally. >>> Shuai, would you please look into possible ways of fixing this? >>> Just setting the compressed flag may not be enough, and falling >>> back to plain XRSTOR doesn't seem to be an option either - I'm in >>> particular worried that the current model of zeroing everything >>> is bogus with the growing number of different components which >>> get loaded here. >>> >>> But of course another question then is why the XRSTORS faults >>> in the first place. I guess we'll need a debugging patch to dump >>> the full state to understand that. >>> >> If someone can produce and send such patch, I'm sure Harmandeep will be >> happy to give it a try on her hardware. > > So here you go. Instead of a debugging one, I hope I have at > once fixed the issue in a suitable way. Whether we'd like to keep > the debugging output we can decide later on. > > Both patches need to be applied; while the order shouldn't matter, > the alignment one is a prereq to the actual change. > > Jan > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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