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Re: [Xen-devel] Failure to load the most recent 2.6.32.21 pvops under Xe

To: xen-devel@xxxxxxxxxxxxxxxxxxx, Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] Failure to load the most recent 2.6.32.21 pvops under Xen 4.0.1
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Fri, 24 Sep 2010 07:21:41 -0700 (PDT)
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Delivery-date: Fri, 24 Sep 2010 07:22:28 -0700
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After replacement drivers/xen/balloon.c by version from folder with kernel's  build made
on 09/07/10  ( git checkout same day) i was able to revert system to working state.

Boris.
--- On Fri, 9/24/10, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:

From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Subject: [Xen-devel] Failure to load the most recent 2.6.32.21 pvops under Xen 4.0.1
To: xen-devel@xxxxxxxxxxxxxxxxxxx, "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
Date: Friday, September 24, 2010, 7:39 AM

Last commit (b297cdac0373625d3cd0e6f2b393570dcf2edba6)
Console drops into stack trace:-

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Kernel Bug at drivers/xen/balloon.c:270 !
invalid opcode 0000 [#] SMP
last sysfs file : /sys/devices/virtual/misc/xen!gntdev/uevent
. . . . . . .

RIP [<fffff ....>]  balloon_process+0x1c4/0x580
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Same trace generates kernel-2.6.32.21-168.xendom0.fc12.src.rpm on F13 under Xen 4.0.1 . kernel-2.6.32.21-167.xendom0.fc12.src.rpm  works fine.

Boris








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