* WARN_ON running XDP on virtio net device
@ 2017-04-10 21:21 David Ahern
2017-04-10 21:24 ` Michael S. Tsirkin
2017-04-10 21:37 ` Michael S. Tsirkin
0 siblings, 2 replies; 4+ messages in thread
From: David Ahern @ 2017-04-10 21:21 UTC (permalink / raw)
To: jasowang, Michael S. Tsirkin, netdev@vger.kernel.org
I'm hitting a WARN_ON running XDP with virtio net:
[ 177.185570] ------------[ cut here ]------------
[ 177.187250] WARNING: CPU: 0 PID: 880 at
/home/dsa/kernel.git/drivers/pci/msi.c:1251 pci_irq_vector+0x92/0x123
[ 177.190932] Modules linked in: 8021q garp mrp stp llc vrf
[ 177.193473] CPU: 0 PID: 880 Comm: xdp1 Not tainted 4.11.0-rc5+ #305
[ 177.195640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 177.199190] Call Trace:
[ 177.200072] dump_stack+0x81/0xb6
[ 177.201018] __warn+0x107/0x122
[ 177.201899] warn_slowpath_null+0x1d/0x1f
[ 177.203014] pci_irq_vector+0x92/0x123
[ 177.204082] vp_synchronize_vectors+0x6f/0x81
[ 177.205293] vp_reset+0x50/0x55
[ 177.206174] virtnet_xdp+0x346/0x6dd
[ 177.207188] dev_change_xdp_fd+0x12a/0x151
[ 177.208256] do_setlink+0x1288/0x130a
Seems to be something introduced in the past month or so. 2 attempts to
bisect it pointed to this commit:
commit 54d7989f476ca57fc3c5cc71524c480ccb74c481
Merge: 0f221a3102bb c4baad50297d
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu Mar 2 13:53:13 2017 -0800
Merge tag 'for_linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull vhost updates from Michael Tsirkin:
"virtio, vhost: optimizations, fixes
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARN_ON running XDP on virtio net device
2017-04-10 21:21 WARN_ON running XDP on virtio net device David Ahern
@ 2017-04-10 21:24 ` Michael S. Tsirkin
2017-04-10 21:37 ` Michael S. Tsirkin
1 sibling, 0 replies; 4+ messages in thread
From: Michael S. Tsirkin @ 2017-04-10 21:24 UTC (permalink / raw)
To: David Ahern; +Cc: jasowang, netdev@vger.kernel.org
On Mon, Apr 10, 2017 at 03:21:53PM -0600, David Ahern wrote:
> I'm hitting a WARN_ON running XDP with virtio net:
>
> [ 177.185570] ------------[ cut here ]------------
> [ 177.187250] WARNING: CPU: 0 PID: 880 at
> /home/dsa/kernel.git/drivers/pci/msi.c:1251 pci_irq_vector+0x92/0x123
> [ 177.190932] Modules linked in: 8021q garp mrp stp llc vrf
> [ 177.193473] CPU: 0 PID: 880 Comm: xdp1 Not tainted 4.11.0-rc5+ #305
> [ 177.195640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
> [ 177.199190] Call Trace:
> [ 177.200072] dump_stack+0x81/0xb6
> [ 177.201018] __warn+0x107/0x122
> [ 177.201899] warn_slowpath_null+0x1d/0x1f
> [ 177.203014] pci_irq_vector+0x92/0x123
> [ 177.204082] vp_synchronize_vectors+0x6f/0x81
> [ 177.205293] vp_reset+0x50/0x55
> [ 177.206174] virtnet_xdp+0x346/0x6dd
> [ 177.207188] dev_change_xdp_fd+0x12a/0x151
> [ 177.208256] do_setlink+0x1288/0x130a
>
> Seems to be something introduced in the past month or so. 2 attempts to
> bisect it pointed to this commit:
>
> commit 54d7989f476ca57fc3c5cc71524c480ccb74c481
> Merge: 0f221a3102bb c4baad50297d
> Author: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Thu Mar 2 13:53:13 2017 -0800
>
> Merge tag 'for_linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
>
> Pull vhost updates from Michael Tsirkin:
> "virtio, vhost: optimizations, fixes
I'm preparing a pull request reverting some changes we made
there. I'd be thankful if you can check whether
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost linux-next
help with this.
Thanks
--
MST
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARN_ON running XDP on virtio net device
2017-04-10 21:21 WARN_ON running XDP on virtio net device David Ahern
2017-04-10 21:24 ` Michael S. Tsirkin
@ 2017-04-10 21:37 ` Michael S. Tsirkin
2017-04-10 22:33 ` David Ahern
1 sibling, 1 reply; 4+ messages in thread
From: Michael S. Tsirkin @ 2017-04-10 21:37 UTC (permalink / raw)
To: David Ahern; +Cc: jasowang, netdev@vger.kernel.org
On Mon, Apr 10, 2017 at 03:21:53PM -0600, David Ahern wrote:
> I'm hitting a WARN_ON running XDP with virtio net:
I just sent a pull request. Would appreciate reports on whether
it helps.
> [ 177.185570] ------------[ cut here ]------------
> [ 177.187250] WARNING: CPU: 0 PID: 880 at
> /home/dsa/kernel.git/drivers/pci/msi.c:1251 pci_irq_vector+0x92/0x123
> [ 177.190932] Modules linked in: 8021q garp mrp stp llc vrf
> [ 177.193473] CPU: 0 PID: 880 Comm: xdp1 Not tainted 4.11.0-rc5+ #305
> [ 177.195640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
> [ 177.199190] Call Trace:
> [ 177.200072] dump_stack+0x81/0xb6
> [ 177.201018] __warn+0x107/0x122
> [ 177.201899] warn_slowpath_null+0x1d/0x1f
> [ 177.203014] pci_irq_vector+0x92/0x123
> [ 177.204082] vp_synchronize_vectors+0x6f/0x81
> [ 177.205293] vp_reset+0x50/0x55
> [ 177.206174] virtnet_xdp+0x346/0x6dd
> [ 177.207188] dev_change_xdp_fd+0x12a/0x151
> [ 177.208256] do_setlink+0x1288/0x130a
>
> Seems to be something introduced in the past month or so. 2 attempts to
> bisect it pointed to this commit:
>
> commit 54d7989f476ca57fc3c5cc71524c480ccb74c481
> Merge: 0f221a3102bb c4baad50297d
> Author: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Thu Mar 2 13:53:13 2017 -0800
>
> Merge tag 'for_linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
>
> Pull vhost updates from Michael Tsirkin:
> "virtio, vhost: optimizations, fixes
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARN_ON running XDP on virtio net device
2017-04-10 21:37 ` Michael S. Tsirkin
@ 2017-04-10 22:33 ` David Ahern
0 siblings, 0 replies; 4+ messages in thread
From: David Ahern @ 2017-04-10 22:33 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: jasowang, netdev@vger.kernel.org
On 4/10/17 3:37 PM, Michael S. Tsirkin wrote:
> On Mon, Apr 10, 2017 at 03:21:53PM -0600, David Ahern wrote:
>> I'm hitting a WARN_ON running XDP with virtio net:
> I just sent a pull request. Would appreciate reports on whether
> it helps.
>
it does.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-04-10 22:33 UTC | newest]
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2017-04-10 21:21 WARN_ON running XDP on virtio net device David Ahern
2017-04-10 21:24 ` Michael S. Tsirkin
2017-04-10 21:37 ` Michael S. Tsirkin
2017-04-10 22:33 ` David Ahern
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