PVH is experimental and the hypervisor ABI is subject to change so I
wouldn't try making it work in a distro kernel.
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https://bugs.launchpad.net/bugs/1350373
Title:
Kernel
** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty
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https://bugs.launchpad.net/bugs/1368724
Title:
Xen guests may hang after migration or s
FYI, resume is an integral part of migration or domain restore. I've
adjusted the test case accordingly.
** Description changed:
[Impact]
Xen guests may hang during resume after a migration or suspend. The
predominately affects HVM guests.
[Test Case]
- Create a Xen guest and attempt
Public bug reported:
Xen guests may hang during resume after a migration or suspend. The
predominately affects HVM guests.
The following upstream commits (tagged for stable) fix the hangs.
"x86/xen: resume timer irqs early"
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
The suggested (minimal) fix is now upstream.
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3dcf63677d4eb7fdfc13290c8558c301d2588fe8
I did /not/ tag it for stable because I do not consider this bug
sufficiently critical.
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Sorry, it appears launchpad ate all the tabs.
** Patch added: "xen/balloon: cancel ballooning if adding new memory failed"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1304001/+attachment/4189295/+files/0001-xen-balloon-cancel-ballooning-if-adding-new-memory-f.patch
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Can you try this patch?
8<--
xen/balloon: cancel ballooning if adding new memory failed
If the balloon driver is adding additional memory regions to the
balloon and add_memory() fails it will likely continuously fail so
cancel the balloon operation.
Signed-off-by: Da
"xen:balloon: reserve_additional_memory: add_memory() failed: -17" can
only occur in HVM guests if the balloon target is set above the maximum
allowed by the guest's memory map.
This is likely a bug in the EC2 toolstack. Perhaps this was introduced
as a workaround for the problem fixed by c275a57f
Thanks Stefan, I have tested that test kernel and it seems ok.
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Title:
Kernel BUG in paravirt_enter_lazy_mmu when running as a Xen P
Thanks for the test kernel. Unfortunately it crashes in gnttab_init()
when booting. I think the backport to 3.13 is not correct.
I will try to produced a working backported patch.
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Here is a working patch against 3.13.10.
** Patch added: "[PATCH 3.13.10] x86/xen: safely map and unmap grant frames
when in atomic context"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1350373/+attachment/4167411/+files/0001-x86-xen-safely-map-and-unmap-grant-frames-when-in-at.patch
Commit b7dd0e350e0bd4c0fddcc9b8958342700b00b168 (x86/xen: safely map and
unmap grant frames when in atomic context)
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b7dd0e350e0bd4c0fddcc9b8958342700b00b168
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** Summary changed:
- Kernel BUG in paravirt_lazy_mmu when running as a Xen PV guest
+ Kernel BUG in paravirt_enter_lazy_mmu when running as a Xen PV guest
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https://bugs.laun
appport-collect crashed when attempting to view the report so I've not
attached any additional logs as requested by the bot.
I hope this isn't a problem since I have already diagnosed the bug and
provided the correct fix.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Y
Public bug reported:
Xen PV guests may crash during boot in paravirt_enter_lazy_mmu() while
expanding the grant table (usually when requested by blkfront, when
booting). See an example trace below.
This is caused by calling functions that are unsafe in atomic context.
The fix (which has been su
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