search for: 986a4f4d452d

On Thu, May 4, 2023 at 10:27?AM Wenliang Wang <wangwenliang.1995 at bytedance.com> wrote: > > For multi-queue and large ring-size use case, the following error > occurred when free_unused_bufs: > rcu: INFO: rcu_sched self-detected stall on CPU. > > Fixes: 986a4f4d452d ("virtio_net: multiqueue support") > Signed-off-by: Wenliang Wang <wangwenliang.1995 at bytedance.com> > --- > v2: > -add need_resched check. > -apply same logic to sq. > v3: > -use cond_resched instead. > v4: > -add fixes tag > --- > drivers/net/vi...

...2023 at 10:27?AM Wenliang Wang > <wangwenliang.1995 at bytedance.com> wrote: > > > > For multi-queue and large ring-size use case, the following error > > occurred when free_unused_bufs: > > rcu: INFO: rcu_sched self-detected stall on CPU. > > > > Fixes: 986a4f4d452d ("virtio_net: multiqueue support") > > Signed-off-by: Wenliang Wang <wangwenliang.1995 at bytedance.com> > > --- > > v2: > > -add need_resched check. > > -apply same logic to sq. > > v3: > > -use cond_resched instead. > > v4: > >...

...all_fastpath+0x16/0x1b > Code: 00 00 55 48 8b 17 48 b9 00 01 10 00 00 00 ad de 48 8b 47 08 48 89 e5 48 39 ca 74 29 48 b9 00 02 20 00 00 00 > RIP [<ffffffff81322e19>] __list_del_entry+0x29/0xd0 > RSP <ffff8800379e1dd0> > ---[ end trace d5931cd3f87c9763 ]--- > > Fixes: 986a4f4d452d (virtio_net: multiqueue support) > Cc: Rusty Russell <rusty at rustcorp.com.au> > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Signed-off-by: Andrey Vagin <avagin at openvz.org> > --- > drivers/net/virtio_net.c | 5 +++++ > 1 file changed, 5 insertio...

...all_fastpath+0x16/0x1b > Code: 00 00 55 48 8b 17 48 b9 00 01 10 00 00 00 ad de 48 8b 47 08 48 89 e5 48 39 ca 74 29 48 b9 00 02 20 00 00 00 > RIP [<ffffffff81322e19>] __list_del_entry+0x29/0xd0 > RSP <ffff8800379e1dd0> > ---[ end trace d5931cd3f87c9763 ]--- > > Fixes: 986a4f4d452d (virtio_net: multiqueue support) > Cc: Rusty Russell <rusty at rustcorp.com.au> > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Signed-off-by: Andrey Vagin <avagin at openvz.org> > --- > drivers/net/virtio_net.c | 5 +++++ > 1 file changed, 5 insertio...

They can be easy to reproduce, if you try to unload virtio-net Andrey Vagin (2): virtio-net: determine type of bufs correctly virtio: delete napi objects from netdev before releasing memory drivers/net/virtio_net.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com>

They can be easy to reproduce, if you try to unload virtio-net Andrey Vagin (2): virtio-net: determine type of bufs correctly virtio: delete napi objects from netdev before releasing memory drivers/net/virtio_net.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com>

On Thu, May 04, 2023 at 10:27:06AM +0800, Wenliang Wang wrote: > For multi-queue and large ring-size use case, the following error > occurred when free_unused_bufs: > rcu: INFO: rcu_sched self-detected stall on CPU. > > Fixes: 986a4f4d452d ("virtio_net: multiqueue support") > Signed-off-by: Wenliang Wang <wangwenliang.1995 at bytedance.com> Acked-by: Michael S. Tsirkin <mst at redhat.com> Probably a good idea for stable, too. > --- > v2: > -add need_resched check. > -apply same logic to sq. &gt...

...fffffff81677f69>] system_call_fastpath+0x16/0x1b Code: 00 00 55 48 8b 17 48 b9 00 01 10 00 00 00 ad de 48 8b 47 08 48 89 e5 48 39 ca 74 29 48 b9 00 02 20 00 00 00 RIP [<ffffffff81322e19>] __list_del_entry+0x29/0xd0 RSP <ffff8800379e1dd0> ---[ end trace d5931cd3f87c9763 ]--- Fixes: 986a4f4d452d (virtio_net: multiqueue support) Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Signed-off-by: Andrey Vagin <avagin at openvz.org> --- drivers/net/virtio_net.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/ne...