Re: Linux 5.12-rc7

2021-04-13 Thread Michael S. Tsirkin
On Tue, Apr 13, 2021 at 03:42:24PM +0200, Eric Dumazet wrote: > On Tue, Apr 13, 2021 at 3:38 PM Michael S. Tsirkin wrote: > > > > On Tue, Apr 13, 2021 at 03:33:40PM +0200, Eric Dumazet wrote: > > > On Tue, Apr 13, 2021 at 3:27 PM Eric Dumazet wrote: > > > > > > > > On Tue, Apr 13, 2021 at 2:57 PM

Re: Linux 5.12-rc7

2021-04-13 Thread Michael S. Tsirkin
On Tue, Apr 13, 2021 at 03:42:24PM +0200, Eric Dumazet wrote: > On Tue, Apr 13, 2021 at 3:38 PM Michael S. Tsirkin wrote: > > > > On Tue, Apr 13, 2021 at 03:33:40PM +0200, Eric Dumazet wrote: > > > On Tue, Apr 13, 2021 at 3:27 PM Eric Dumazet wrote: > > > > > > > > On Tue, Apr 13, 2021 at 2:57 PM

Re: Linux 5.12-rc7

2021-04-13 Thread Michael S. Tsirkin
On Tue, Apr 13, 2021 at 03:33:40PM +0200, Eric Dumazet wrote: > On Tue, Apr 13, 2021 at 3:27 PM Eric Dumazet wrote: > > > > On Tue, Apr 13, 2021 at 2:57 PM Michael S. Tsirkin wrote: > > > > > > On Mon, Apr 12, 2021 at 06:47:07PM +0200, Eric Dumazet wrote: > > > > On Mon, Apr 12, 2021 at 6:31 PM E

Re: Linux 5.12-rc7

2021-04-13 Thread Michael S. Tsirkin
On Mon, Apr 12, 2021 at 06:47:07PM +0200, Eric Dumazet wrote: > On Mon, Apr 12, 2021 at 6:31 PM Eric Dumazet wrote: > > > > On Mon, Apr 12, 2021 at 6:28 PM Linus Torvalds > > wrote: > > > > > > On Sun, Apr 11, 2021 at 10:14 PM Guenter Roeck wrote: > > > > > > > > Qemu test results: > > > >

Re: Linux 5.12-rc7

2021-04-13 Thread Michael S. Tsirkin
On Tue, Apr 13, 2021 at 02:45:46PM +0200, Eric Dumazet wrote: > On Tue, Apr 13, 2021 at 12:43 PM Eric Dumazet wrote: > > > > On Tue, Apr 13, 2021 at 11:24 AM Eric Dumazet wrote: > > > > > > On Mon, Apr 12, 2021 at 10:05 PM Guenter Roeck wrote: > > > > > > > > On 4/12/21 10:38 AM, Eric Dumazet wr

Re: Linux 5.12-rc7

2021-04-12 Thread Guenter Roeck
On 4/12/21 10:38 AM, Eric Dumazet wrote: [ ... ] > Yes, I think this is the real issue here. This smells like some memory > corruption. > > In my traces, packet is correctly received in AF_PACKET queue. > > I have checked the skb is well formed. > > But the user space seems to never call poll()

Re: Linux 5.12-rc7

2021-04-12 Thread Guenter Roeck
On 4/12/21 9:31 AM, Eric Dumazet wrote: > On Mon, Apr 12, 2021 at 6:28 PM Linus Torvalds > wrote: >> >> On Sun, Apr 11, 2021 at 10:14 PM Guenter Roeck wrote: >>> >>> Qemu test results: >>> total: 460 pass: 459 fail: 1 >>> Failed tests: >>> sh:rts7751r2dplus_defconfig:ata:net,virti

Re: Linux 5.12-rc7

2021-04-12 Thread Linus Torvalds
On Sun, Apr 11, 2021 at 10:14 PM Guenter Roeck wrote: > > Qemu test results: > total: 460 pass: 459 fail: 1 > Failed tests: > sh:rts7751r2dplus_defconfig:ata:net,virtio-net:rootfs > > The failure bisects to commit 0f6925b3e8da ("virtio_net: Do not pull payload > in > skb->head").

Re: Linux 5.12-rc7

2021-04-12 Thread Michael S. Tsirkin
On Mon, Apr 12, 2021 at 09:28:28AM -0700, Linus Torvalds wrote: > On Sun, Apr 11, 2021 at 10:14 PM Guenter Roeck wrote: > > > > Qemu test results: > > total: 460 pass: 459 fail: 1 > > Failed tests: > > sh:rts7751r2dplus_defconfig:ata:net,virtio-net:rootfs > > > > The failure bisect