Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-23 Thread Christoph Hellwig
Ok, it helps to make sure we're actually doing I/O from the CPU, I've reproduced it now. ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-23 Thread Christoph Hellwig
I can't reproduce it in my VM with adding a new CPU. Do you have any interesting blk-mq like actually using multiple queues? I'll give that a spin next. ___ Virtualization mailing list Virtualization@lists.linux-foundation.org

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-22 Thread Jens Axboe
On 11/22/2017 12:28 AM, Christoph Hellwig wrote: > Jens, please don't just revert the commit in your for-linus tree. > > On its own this will totally mess up the interrupt assignments. Give > me a bit of time to sort this out properly. I wasn't going to push it until I heard otherwise. I'll

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christoph Hellwig
Jens, please don't just revert the commit in your for-linus tree. On its own this will totally mess up the interrupt assignments. Give me a bit of time to sort this out properly. ___ Virtualization mailing list Virtualization@lists.linux-foundation.org

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 01:31 PM, Christian Borntraeger wrote: > > > On 11/21/2017 09:21 PM, Jens Axboe wrote: >> On 11/21/2017 01:19 PM, Christian Borntraeger wrote: >>> >>> On 11/21/2017 09:14 PM, Jens Axboe wrote: On 11/21/2017 01:12 PM, Christian Borntraeger wrote: > > > On 11/21/2017

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 09:21 PM, Jens Axboe wrote: > On 11/21/2017 01:19 PM, Christian Borntraeger wrote: >> >> On 11/21/2017 09:14 PM, Jens Axboe wrote: >>> On 11/21/2017 01:12 PM, Christian Borntraeger wrote: On 11/21/2017 08:30 PM, Jens Axboe wrote: > On 11/21/2017 12:15 PM,

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 01:19 PM, Christian Borntraeger wrote: > > On 11/21/2017 09:14 PM, Jens Axboe wrote: >> On 11/21/2017 01:12 PM, Christian Borntraeger wrote: >>> >>> >>> On 11/21/2017 08:30 PM, Jens Axboe wrote: On 11/21/2017 12:15 PM, Christian Borntraeger wrote: > > > On

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 09:14 PM, Jens Axboe wrote: > On 11/21/2017 01:12 PM, Christian Borntraeger wrote: >> >> >> On 11/21/2017 08:30 PM, Jens Axboe wrote: >>> On 11/21/2017 12:15 PM, Christian Borntraeger wrote: On 11/21/2017 07:39 PM, Jens Axboe wrote: > On 11/21/2017 11:27 AM, Jens

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 01:12 PM, Christian Borntraeger wrote: > > > On 11/21/2017 08:30 PM, Jens Axboe wrote: >> On 11/21/2017 12:15 PM, Christian Borntraeger wrote: >>> >>> >>> On 11/21/2017 07:39 PM, Jens Axboe wrote: On 11/21/2017 11:27 AM, Jens Axboe wrote: > On 11/21/2017 11:12 AM,

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 08:30 PM, Jens Axboe wrote: > On 11/21/2017 12:15 PM, Christian Borntraeger wrote: >> >> >> On 11/21/2017 07:39 PM, Jens Axboe wrote: >>> On 11/21/2017 11:27 AM, Jens Axboe wrote: On 11/21/2017 11:12 AM, Christian Borntraeger wrote: > > > On 11/21/2017 07:09 PM,

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 12:15 PM, Christian Borntraeger wrote: > > > On 11/21/2017 07:39 PM, Jens Axboe wrote: >> On 11/21/2017 11:27 AM, Jens Axboe wrote: >>> On 11/21/2017 11:12 AM, Christian Borntraeger wrote: On 11/21/2017 07:09 PM, Jens Axboe wrote: > On 11/21/2017 10:27 AM, Jens

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 07:39 PM, Jens Axboe wrote: > On 11/21/2017 11:27 AM, Jens Axboe wrote: >> On 11/21/2017 11:12 AM, Christian Borntraeger wrote: >>> >>> >>> On 11/21/2017 07:09 PM, Jens Axboe wrote: On 11/21/2017 10:27 AM, Jens Axboe wrote: > On 11/21/2017 03:14 AM, Christian Borntraeger

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 11:27 AM, Jens Axboe wrote: > On 11/21/2017 11:12 AM, Christian Borntraeger wrote: >> >> >> On 11/21/2017 07:09 PM, Jens Axboe wrote: >>> On 11/21/2017 10:27 AM, Jens Axboe wrote: On 11/21/2017 03:14 AM, Christian Borntraeger wrote: > Bisect points to > >

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 11:12 AM, Christian Borntraeger wrote: > > > On 11/21/2017 07:09 PM, Jens Axboe wrote: >> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: Bisect points to 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 07:09 PM, Jens Axboe wrote: > On 11/21/2017 10:27 AM, Jens Axboe wrote: >> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>> Bisect points to >>> >>> 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad commit >>> commit 1b5a7455d345b223d3a4658a9e5fce985b7998c1 >>>

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 10:27 AM, Jens Axboe wrote: > On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >> Bisect points to >> >> 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad commit >> commit 1b5a7455d345b223d3a4658a9e5fce985b7998c1 >> Author: Christoph Hellwig >> Date: Mon

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Jens Axboe
On 11/21/2017 03:14 AM, Christian Borntraeger wrote: > Bisect points to > > 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad commit > commit 1b5a7455d345b223d3a4658a9e5fce985b7998c1 > Author: Christoph Hellwig > Date: Mon Jun 26 12:20:57 2017 +0200 > > blk-mq: Create

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk (also 4.12 stable)

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 10:50 AM, Christian Borntraeger wrote: > > > On 11/21/2017 09:35 AM, Christian Borntraeger wrote: >> >> >> On 11/20/2017 09:52 PM, Jens Axboe wrote: >>> On 11/20/2017 01:49 PM, Christian Borntraeger wrote: On 11/20/2017 08:42 PM, Jens Axboe wrote: > On

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-21 Thread Christian Borntraeger
On 11/21/2017 09:35 AM, Christian Borntraeger wrote: > > > On 11/20/2017 09:52 PM, Jens Axboe wrote: >> On 11/20/2017 01:49 PM, Christian Borntraeger wrote: >>> >>> >>> On 11/20/2017 08:42 PM, Jens Axboe wrote: On 11/20/2017 12:29 PM, Christian Borntraeger wrote: > > > On

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-21 Thread Christian Borntraeger
On 11/20/2017 09:52 PM, Jens Axboe wrote: > On 11/20/2017 01:49 PM, Christian Borntraeger wrote: >> >> >> On 11/20/2017 08:42 PM, Jens Axboe wrote: >>> On 11/20/2017 12:29 PM, Christian Borntraeger wrote: On 11/20/2017 08:20 PM, Bart Van Assche wrote: > On Fri, 2017-11-17 at

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-20 Thread Jens Axboe
On 11/20/2017 01:49 PM, Christian Borntraeger wrote: > > > On 11/20/2017 08:42 PM, Jens Axboe wrote: >> On 11/20/2017 12:29 PM, Christian Borntraeger wrote: >>> >>> >>> On 11/20/2017 08:20 PM, Bart Van Assche wrote: On Fri, 2017-11-17 at 15:42 +0100, Christian Borntraeger wrote: > This

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-20 Thread Jens Axboe
On 11/20/2017 12:29 PM, Christian Borntraeger wrote: > > > On 11/20/2017 08:20 PM, Bart Van Assche wrote: >> On Fri, 2017-11-17 at 15:42 +0100, Christian Borntraeger wrote: >>> This is >>> >>> b7a71e66d (Jens Axboe2017-08-01 09:28:24 -0600 1141) * >>> are mapped to it. >>>

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-20 Thread Christian Borntraeger
On 11/20/2017 08:20 PM, Bart Van Assche wrote: > On Fri, 2017-11-17 at 15:42 +0100, Christian Borntraeger wrote: >> This is >> >> b7a71e66d (Jens Axboe2017-08-01 09:28:24 -0600 1141) * >> are mapped to it. >> b7a71e66d (Jens Axboe2017-08-01 09:28:24 -0600

Re: 4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-20 Thread Bart Van Assche
On Fri, 2017-11-17 at 15:42 +0100, Christian Borntraeger wrote: > This is > > b7a71e66d (Jens Axboe2017-08-01 09:28:24 -0600 1141) * > are mapped to it. > b7a71e66d (Jens Axboe2017-08-01 09:28:24 -0600 1142) */ > 6a83e74d2 (Bart Van Assche

4.14: WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 with virtio-blk

2017-11-17 Thread Christian Borntraeger
When doing cpu hotplug in a KVM guest with virtio blk I get warnings like 747.652408] [ cut here ] [ 747.652410] WARNING: CPU: 4 PID: 2895 at block/blk-mq.c:1144 __blk_mq_run_hw_queue+0xd4/0x100 [ 747.652410] Modules linked in: dm_multipath [ 747.652412] CPU: 4 PID: