Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-12-15 Thread Jiri Slaby
On 11/16/2016, 02:12 PM, Gerd Hoffmann wrote: > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-12-15 Thread Jiri Slaby
On 11/16/2016, 02:12 PM, Gerd Hoffmann wrote: > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-16 Thread Gerd Hoffmann
On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: > On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: > > On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > >> On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > >>> Hi, > >>> > >>> I can relatively easily reproduce this bug: > >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-16 Thread Gerd Hoffmann
On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: > On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: > > On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > >> On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > >>> Hi, > >>> > >>> I can relatively easily reproduce this bug: > >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Gerd Hoffmann
On Di, 2016-11-15 at 09:55 +0100, Jiri Slaby wrote: > On 11/15/2016, 09:46 AM, Gerd Hoffmann wrote: > > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: > >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: > >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > On Mon, Nov 07,

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Gerd Hoffmann
On Di, 2016-11-15 at 09:55 +0100, Jiri Slaby wrote: > On 11/15/2016, 09:46 AM, Gerd Hoffmann wrote: > > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: > >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: > >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > On Mon, Nov 07,

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Jiri Slaby
On 11/15/2016, 09:46 AM, Gerd Hoffmann wrote: > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Jiri Slaby
On 11/15/2016, 09:46 AM, Gerd Hoffmann wrote: > On Fr, 2016-11-11 at 17:28 +0100, Jiri Slaby wrote: >> On 11/09/2016, 09:01 AM, Gerd Hoffmann wrote: >>> On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Gerd Hoffmann
s the BUG. > > [1] https://github.com/jirislaby/collected_sources/blob/master/pps.c > > >>> BUG: 'list_empty(>free_vbufs)' is true! > > > >> The following might be helpful for debugging - if kernel still will > >> not stop panicing, we are looking

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-15 Thread Gerd Hoffmann
s the BUG. > > [1] https://github.com/jirislaby/collected_sources/blob/master/pps.c > > >>> BUG: 'list_empty(>free_vbufs)' is true! > > > >> The following might be helpful for debugging - if kernel still will > >> not stop panicing, we are looking

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-11 Thread Jiri Slaby
-w in the qemu window (virtio_gpu) to see a lot of output. Run pps [1] without exit(0); on e.g. serial console. Wait a bit. The lot of output causes the BUG. [1] https://github.com/jirislaby/collected_sources/blob/master/pps.c >>> BUG: 'list_empty(>free_vbufs)' is true! > >>

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-11 Thread Jiri Slaby
-w in the qemu window (virtio_gpu) to see a lot of output. Run pps [1] without exit(0); on e.g. serial console. Wait a bit. The lot of output causes the BUG. [1] https://github.com/jirislaby/collected_sources/blob/master/pps.c >>> BUG: 'list_empty(>free_vbufs)' is true! > >>

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-11 Thread Jiri Slaby
On 11/08/2016, 09:37 PM, Michael S. Tsirkin wrote: > On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > The following might be helpful for debugging - if kernel still will > not stop panicing, we are looking at some kind > of memory corruption. > > > diff --git

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-11 Thread Jiri Slaby
On 11/08/2016, 09:37 PM, Michael S. Tsirkin wrote: > On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > The following might be helpful for debugging - if kernel still will > not stop panicing, we are looking at some kind > of memory corruption. > > > diff --git

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-09 Thread Gerd Hoffmann
On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > > Hi, > > > > I can relatively easily reproduce this bug: How? > > BUG: 'list_empty(>free_vbufs)' is true! > The following might be

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-09 Thread Gerd Hoffmann
On Di, 2016-11-08 at 22:37 +0200, Michael S. Tsirkin wrote: > On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > > Hi, > > > > I can relatively easily reproduce this bug: How? > > BUG: 'list_empty(>free_vbufs)' is true! > The following might be

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-08 Thread Michael S. Tsirkin
On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, > > I can relatively easily reproduce this bug: > BUG: 'list_empty(>free_vbufs)' is true! > [ cut here ] > kernel BUG at /home/latest/linux/drivers/gpu/drm/virtio/virtgpu_vq.c:130! >

Re: BUG: 'list_empty(>free_vbufs)' is true!

2016-11-08 Thread Michael S. Tsirkin
On Mon, Nov 07, 2016 at 09:43:24AM +0100, Jiri Slaby wrote: > Hi, > > I can relatively easily reproduce this bug: > BUG: 'list_empty(>free_vbufs)' is true! > [ cut here ] > kernel BUG at /home/latest/linux/drivers/gpu/drm/virtio/virtgpu_vq.c:130! >

BUG: 'list_empty(>free_vbufs)' is true!

2016-11-07 Thread Jiri Slaby
Hi, I can relatively easily reproduce this bug: BUG: 'list_empty(>free_vbufs)' is true! [ cut here ] kernel BUG at /home/latest/linux/drivers/gpu/drm/virtio/virtgpu_vq.c:130! invalid opcode: [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 355 Comm: kworker/

BUG: 'list_empty(>free_vbufs)' is true!

2016-11-07 Thread Jiri Slaby
Hi, I can relatively easily reproduce this bug: BUG: 'list_empty(>free_vbufs)' is true! [ cut here ] kernel BUG at /home/latest/linux/drivers/gpu/drm/virtio/virtgpu_vq.c:130! invalid opcode: [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 355 Comm: kworker/