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Date: Sun, 23 Sep 2018 10:14:00 +0200 From: Dmitry Vyukov <dvyukov@...gle.com> To: syzbot <syzbot+a72ba31e3224309179d4@...kaller.appspotmail.com>, netdev <netdev@...r.kernel.org> Cc: LKML <linux-kernel@...r.kernel.org>, syzkaller-bugs <syzkaller-bugs@...glegroups.com> Subject: Re: net build error On Sun, Sep 23, 2018 at 9:42 AM, syzbot <syzbot+a72ba31e3224309179d4@...kaller.appspotmail.com> wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 474ff2600889 net-ethtool: ETHTOOL_GUFO did not and should .. > git tree: net > console output: https://syzkaller.appspot.com/x/log.txt?x=164c4059400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=5fa12be50bca08d8 > dashboard link: https://syzkaller.appspot.com/bug?extid=a72ba31e3224309179d4 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+a72ba31e3224309179d4@...kaller.appspotmail.com +netdev The root cause: net/rds/ib.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:(.data..percpu..shared_aligned+0x0): first defined here net/rds/ib_cm.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_recv.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_ring.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_send.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_stats.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_sysctl.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_rdma.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_fmr.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here net/rds/ib_frmr.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats' net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here Makefile:1030: recipe for target 'vmlinux' failed make: *** [vmlinux] Error 1 > --- > This bug 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@...glegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with > syzbot.
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