Re: INFO: task hung in addrconf_verify_work (2)

2019-10-14 Thread Cong Wang
On Sun, Oct 13, 2019 at 10:37 PM Eric Dumazet wrote: > Infinite loop because tcf_add_notify() returns -EAGAIN as the message can not > be delivered to the socket, > since its SO_RCVBUF has been set to 0. Interesting corner case... > > Perhaps we need this patch ? This patch looks reasonable

Re: INFO: task hung in addrconf_verify_work (2)

2019-10-13 Thread Eric Dumazet
On 10/13/19 9:42 PM, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:    c208bdb9 tcp: improve recv_skip_hint for tcp_zerocopy_rece.. > git tree:   net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=15b6133b60 > kernel config: 

INFO: task hung in addrconf_verify_work (2)

2019-10-13 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:c208bdb9 tcp: improve recv_skip_hint for tcp_zerocopy_rece.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=15b6133b60 kernel config: https://syzkaller.appspot.com/x/.config?x=d9be300620399522