upstream test error: BUG: got no fallback coverage:

upstream test error: BUG: got no fallback coverage:

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    6642d600 Merge tag '5.11-rc5-smb3' of git://git.samba.org/..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14de59e8d00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f75d66d6d359ef2f
dashboard link: https://syzkaller.appspot.com/bug?extid=e6ca682acbbf21043787
userspace arch: arm64

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com

1970/01/01 00:02:05 connecting to host at 10.0.2.10:40353
1970/01/01 00:02:05 checking machine...
1970/01/01 00:02:05 checking revisions...
ps_root_recvmsgcb: failed to send message to pid 4476: Connection refused
1970/01/01 00:02:05 testing simple program...
1970/01/01 00:02:08 BUG: got no fallback coverage:
loop exited with status 11
ps_root_recvmsgcb: failed to send message to pid 4508: Connection refused
ps_root_recvmsgcb: failed to send message to pid 4544: Connection refused
ps_root_recvmsgcb: failed to send message to pid 4543: Connection refused
ps_bpf_start_bpf: bpf_open: Invalid argument
ps_root_recvmsg: Invalid argument
ps_bpf_start_bpf: bpf_open: Invalid argument
ps_root_recvmsg: Invalid argument
ps_bpf_start_bpf: bpf_open: Invalid argument
ps_root_recvmsg: Invalid argument


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

Re: upstream test error: BUG: got no fallback coverage:

[Dmitry Vyukov]

Let's pretend this did not happen (since it happened only once)

#syz invalid

On Thu, Feb 4, 2021 at 10:49 AM syzbot
<syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    6642d600 Merge tag '5.11-rc5-smb3' of git://git.samba.org/..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=14de59e8d00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f75d66d6d359ef2f
> dashboard link: https://syzkaller.appspot.com/bug?extid=e6ca682acbbf21043787
> userspace arch: arm64
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+e6ca682acbbf21043787@syzkaller.appspotmail.com
>
> 1970/01/01 00:02:05 connecting to host at 10.0.2.10:40353
> 1970/01/01 00:02:05 checking machine...
> 1970/01/01 00:02:05 checking revisions...
> ps_root_recvmsgcb: failed to send message to pid 4476: Connection refused
> 1970/01/01 00:02:05 testing simple program...
> 1970/01/01 00:02:08 BUG: got no fallback coverage:
> loop exited with status 11
> ps_root_recvmsgcb: failed to send message to pid 4508: Connection refused
> ps_root_recvmsgcb: failed to send message to pid 4544: Connection refused
> ps_root_recvmsgcb: failed to send message to pid 4543: Connection refused
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
> ps_bpf_start_bpf: bpf_open: Invalid argument
> ps_root_recvmsg: Invalid argument
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
> --
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/0000000000003178bf05ba7f9e84%40google.com.