Re: unregister_netdevice: waiting for DEV to become free (2)

2019-10-16 Thread Toke Høiland-Jørgensen
Alexei Starovoitov writes: > On Fri, Oct 11, 2019 at 3:15 AM Tetsuo Handa > wrote: >> >> Hello. >> >> I noticed that syzbot is reporting that refcount incremented by >> bpf(BPF_MAP_UPDATE_ELEM) >> syscall is not decremented when unregister_netdevice() is called. Is this a >> BPF bug? > >

Re: unregister_netdevice: waiting for DEV to become free (2)

2019-10-11 Thread Alexei Starovoitov
On Fri, Oct 11, 2019 at 3:15 AM Tetsuo Handa wrote: > > Hello. > > I noticed that syzbot is reporting that refcount incremented by > bpf(BPF_MAP_UPDATE_ELEM) > syscall is not decremented when unregister_netdevice() is called. Is this a > BPF bug? Jesper, Toke, please take a look. > Kernel:

Re: unregister_netdevice: waiting for DEV to become free (2)

2019-10-11 Thread Tetsuo Handa
Hello. I noticed that syzbot is reporting that refcount incremented by bpf(BPF_MAP_UPDATE_ELEM) syscall is not decremented when unregister_netdevice() is called. Is this a BPF bug? Kernel: 9e208aa06c2109b45eec6be049a8e47034748c20 on linux.git Config:

Re: unregister_netdevice: waiting for DEV to become free (2)

2019-04-29 Thread David Ahern
On 4/29/19 12:34 PM, David Ahern wrote: > On 4/27/19 10:22 PM, Tetsuo Handa wrote: >> On 2019/04/28 8:52, Eric Dumazet wrote: >>> On 4/27/19 3:33 PM, Tetsuo Handa wrote: I'm waiting for davem why it is safe to move the dst entry from "a device to unregister" to "a loopback device in

Re: unregister_netdevice: waiting for DEV to become free (2)

2018-08-15 Thread syzbot
syzbot has found a reproducer for the following crash on: HEAD commit:31130a16d459 Merge tag 'for-linus-4.19-rc1-tag' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1116b46c40 kernel config:

Re: unregister_netdevice: waiting for DEV to become free (2)

2018-08-15 Thread syzbot
syzbot has found a reproducer for the following crash on: HEAD commit:31130a16d459 Merge tag 'for-linus-4.19-rc1-tag' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1116b46c40 kernel config:

unregister_netdevice: waiting for DEV to become free (2)

2018-08-15 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:1236568ee3cb Merge tag 'gpio-v4.18-3' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=135f47e040 kernel config: https://syzkaller.appspot.com/x/.config?x=152cb8ccd35b1f70

unregister_netdevice: waiting for DEV to become free (2)

2018-08-15 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:1236568ee3cb Merge tag 'gpio-v4.18-3' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=135f47e040 kernel config: https://syzkaller.appspot.com/x/.config?x=152cb8ccd35b1f70