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Re: Linux 6.7-rc1+: WARNING at drivers/xen/evtchn.c:167 evtchn_interrupt
- To: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Fri, 1 Dec 2023 09:29:30 +0100
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- Delivery-date: Fri, 01 Dec 2023 08:29:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi Marek,
On 30.11.23 03:34, Marek Marczykowski-Górecki wrote:
Hi,
While testing 6.7-rc3 on Qubes OS I found several warning like in the
subject in dom0 log. I see them when running 6.7-rc1 too. I'm not sure
what exactly triggers the issue, but my guess would be unbinding an
event channel from userspace (closing vchan connection).
Specific message:
[ 83.973377] ------------[ cut here ]------------
[ 83.975523] Interrupt for port 77, but apparently not enabled; per-user
00000000a0e9f1d1
Just a guess, but I think this might happen when the vchan connection
is closed while there is still some traffic. This could result in events
triggering in parallel to unbinding the event channel.
Could you please test the attached patch (only compile tested)?
Juergen
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