[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Critical bug: VT-d fault causes disk corruption or Dom0 kernel panic.
Mmm well not really. :-) Is there any assumption in the VT-d setup about preventing access to the Xen heap, and could that be broken? Perhaps the VT-d pagetables are broken causing bad DMAs leading to data corruption and bad command packets? -- Keir On 22/01/2009 08:58, "Li, Xin" <xin.li@xxxxxxxxx> wrote: > We are looking into the issue too. If you have any idea on how it's caused, > please tell us :-) > Thanks! > -Xin > >> -----Original Message----- >> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx >> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Keir Fraser >> Sent: Thursday, January 22, 2009 3:40 PM >> To: Li, Haicheng; 'xen-devel@xxxxxxxxxxxxxxxxxxx' >> Subject: Re: [Xen-devel] Critical bug: VT-d fault causes disk corruption or >> Dom0 >> kernel panic. >> >> Thanks, >> >> I haven't seen any problems outside of VT-d since c/s 19057, btw. >> >> -- Keir >> >> On 22/01/2009 03:42, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote: >> >>> All, >>> >>> We met several system failures on different hardware platforms, which are >>> all >>> caused by VT-d fault. >>> err 1: disk is corrupted by VT-d fault on SATA. >>> err 2: Dom0 kernel panics at booting, which is caused VT-d fault on UHCI. >>> err 3, Dom0 complains disk errors while creating HVM guests. >>> >>> The culprit would be changeset 19054 "x86_64: Remove statically-partitioned >>> Xen heap.". >>> >>> Detailed error logs can be found via BZ#, >>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1409. >>> >>> >>> -haicheng >>> _______________________________________________ >>> Xen-devel mailing list >>> Xen-devel@xxxxxxxxxxxxxxxxxxx >>> http://lists.xensource.com/xen-devel >> >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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