Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Debian 9 no longer boots as a Xen HVM guest because it is missing the fixup patch.
Thanks, Ross
[1]:
commit 0891fb39ba67bd7ae023ea0d367297ffff010781 Author: Juergen Gross jgross@suse.com Date: Wed Sep 30 11:16:14 2020 +0200
xen/events: don't use chip_data for legacy IRQs
Since commit c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.") Xen is using the chip_data pointer for storing IRQ specific data. When running as a HVM domain this can result in problems for legacy IRQs, as those might use chip_data for their own purposes.
Use a local array for this purpose in case of legacy IRQs, avoiding the double use.
Cc: stable@vger.kernel.org Fixes: c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.") Signed-off-by: Juergen Gross jgross@suse.com Tested-by: Stefan Bader stefan.bader@canonical.com Reviewed-by: Boris Ostrovsky boris.ostrovsky@oracle.com Link: https://lore.kernel.org/r/20200930091614.13660-1-jgross@suse.com Signed-off-by: Juergen Gross jgross@suse.com
On 30.10.20 14:29, Ross Lagerwall wrote:
Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Greg has told me he queued my backport already.
Juergen
Debian 9 no longer boots as a Xen HVM guest because it is missing the fixup patch.
Thanks, Ross
[1]:
commit 0891fb39ba67bd7ae023ea0d367297ffff010781 Author: Juergen Gross jgross@suse.com Date: Wed Sep 30 11:16:14 2020 +0200
xen/events: don't use chip_data for legacy IRQs Since commit c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.") Xen is using the chip_data pointer for storing IRQ specific data. When running as a HVM domain this can result in problems for legacy IRQs, as those might use chip_data for their own purposes. Use a local array for this purpose in case of legacy IRQs, avoiding the double use. Cc: stable@vger.kernel.org Fixes: c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.") Signed-off-by: Juergen Gross <jgross@suse.com> Tested-by: Stefan Bader <stefan.bader@canonical.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20200930091614.13660-1-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
On Fri, Oct 30, 2020 at 03:17:09PM +0100, Jürgen Groß wrote:
On 30.10.20 14:29, Ross Lagerwall wrote:
Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Greg has told me he queued my backport already.
I did? I don't see that commit backported anywhere, did you get confused with some other patch?
I need a backported version of this patch if we are able to accept it, as it does not apply cleanly to those kernel releases. Can someone please provide it and send it?
thanks,
greg k-h
On 2020-10-31 10:03, Greg KH wrote:
[CAUTION - EXTERNAL EMAIL] DO NOT reply, click links, or open attachments unless you have verified the sender and know the content is safe.
On Fri, Oct 30, 2020 at 03:17:09PM +0100, Jürgen Groß wrote:
On 30.10.20 14:29, Ross Lagerwall wrote:
Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Greg has told me he queued my backport already.
I did? I don't see that commit backported anywhere, did you get confused with some other patch?
I need a backported version of this patch if we are able to accept it, as it does not apply cleanly to those kernel releases. Can someone please provide it and send it?
The clean backport to older releases was sent by Jürgen on Oct 5th (subject [PATCH] xen/events: don't use chip_data for legacy IRQs).
https://lists.linaro.org/pipermail/linux-stable-mirror/2020-October/221081.h...
It was queued for 5.4 but not older releases even though it applies cleanly to 4.4..4.19.
Regards, Ross
On Mon, Nov 02, 2020 at 01:40:07PM +0000, Ross Lagerwall wrote:
On 2020-10-31 10:03, Greg KH wrote:
[CAUTION - EXTERNAL EMAIL] DO NOT reply, click links, or open attachments unless you have verified the sender and know the content is safe.
On Fri, Oct 30, 2020 at 03:17:09PM +0100, Jürgen Groß wrote:
On 30.10.20 14:29, Ross Lagerwall wrote:
Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Greg has told me he queued my backport already.
I did? I don't see that commit backported anywhere, did you get confused with some other patch?
I need a backported version of this patch if we are able to accept it, as it does not apply cleanly to those kernel releases. Can someone please provide it and send it?
The clean backport to older releases was sent by Jürgen on Oct 5th (subject [PATCH] xen/events: don't use chip_data for legacy IRQs).
https://lists.linaro.org/pipermail/linux-stable-mirror/2020-October/221081.h...
It was queued for 5.4 but not older releases even though it applies cleanly to 4.4..4.19.
Can you please resend it, that's long out of my mboxes...
thanks,
greg k-h
On 02.11.20 17:07, Greg KH wrote:
On Mon, Nov 02, 2020 at 01:40:07PM +0000, Ross Lagerwall wrote:
On 2020-10-31 10:03, Greg KH wrote:
[CAUTION - EXTERNAL EMAIL] DO NOT reply, click links, or open attachments unless you have verified the sender and know the content is safe.
On Fri, Oct 30, 2020 at 03:17:09PM +0100, Jürgen Groß wrote:
On 30.10.20 14:29, Ross Lagerwall wrote:
Hi,
Please backport [1] to 4.4, 4.9, 4.14, 4.19.
It fixes a commit that has been backported to all the current stable releases but for some reason the fixup was only backported to 5.4 & 5.8.
Greg has told me he queued my backport already.
I did? I don't see that commit backported anywhere, did you get confused with some other patch?
I need a backported version of this patch if we are able to accept it, as it does not apply cleanly to those kernel releases. Can someone please provide it and send it?
The clean backport to older releases was sent by Jürgen on Oct 5th (subject [PATCH] xen/events: don't use chip_data for legacy IRQs).
https://lists.linaro.org/pipermail/linux-stable-mirror/2020-October/221081.h...
It was queued for 5.4 but not older releases even though it applies cleanly to 4.4..4.19.
Can you please resend it, that's long out of my mboxes...
I have included it in the series I've already sent to you for 4.19 and 4.14, and will do so for 4.9 and 4.4, too.
Juergen
linux-stable-mirror@lists.linaro.org
-
Greg KH -
Jürgen Groß -
Ross Lagerwall