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    SubjectRE: BUG: sleeping function called from invalid context at net/core/sock.c:LINE (3)
    Date
    I don't understand this one. tipc_topsrv_stop() can only be trigged from a user doing rmmod(), and I double checked that this is running in user mode.
    How does the call chain you are reporting occur?

    ///jon


    > -----Original Message-----
    > From: Kirill Tkhai [mailto:ktkhai@virtuozzo.com]
    > Sent: Saturday, February 17, 2018 23:23
    > To: Dmitry Vyukov <dvyukov@google.com>; syzbot
    > <syzbot+749d9d87c294c00ca856@syzkaller.appspotmail.com>; Jon Maloy
    > <jon.maloy@ericsson.com>; Ying Xue <ying.xue@windriver.com>
    > Cc: Andrei Vagin <avagin@virtuozzo.com>; David Miller
    > <davem@davemloft.net>; Eric W. Biederman <ebiederm@xmission.com>;
    > Florian Westphal <fw@strlen.de>; LKML <linux-kernel@vger.kernel.org>;
    > netdev <netdev@vger.kernel.org>; Nicolas Dichtel
    > <nicolas.dichtel@6wind.com>; roman.kapl@sysgo.com; syzkaller-
    > bugs@googlegroups.com; tipc-discussion@lists.sourceforge.net
    > Subject: Re: BUG: sleeping function called from invalid context at
    > net/core/sock.c:LINE (3)
    >
    > On 17.02.2018 11:15, Dmitry Vyukov wrote:
    > > On Sat, Feb 17, 2018 at 4:00 AM, syzbot
    > > <syzbot+749d9d87c294c00ca856@syzkaller.appspotmail.com> wrote:
    > >> Hello,
    > >>
    > >> syzbot hit the following crash on net-next commit
    > >> 65bd449c32c2745df61913ab54087e77f9d9b70d (Fri Feb 16 20:26:35 2018
    > >> +0000) Merge branch 'tipc-de-generealize-topology-server'
    > >
    > > +tipc maintainers
    >
    > This looks to be caused by commit 0ef897be12b8
    > "tipc: separate topology server listener socket from subcsriber sockets"
    >
    > Thanks,
    > Kirill
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