On Tue, Mar 10, 2020 at 09:39:36AM +0200, Leon Romanovsky wrote: > On Mon, Mar 09, 2020 at 02:34:51PM -0300, Jason Gunthorpe wrote: > > On Sun, Mar 01, 2020 at 03:20:12AM -0800, syzbot wrote: > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit: f8788d86 Linux 5.6-rc3 > > > git tree: upstream > > > console output: https://syzkaller.appspot.com/x/log.txt?x=132d3645e00000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358 > > > dashboard link: https://syzkaller.appspot.com/bug?extid=e11efb687f5ab7f01f3d > > > compiler: gcc (GCC) 9.0.0 20181231 (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+e11efb687f5ab7f01f3d@xxxxxxxxxxxxxxxxxxxxxxxxx > > > > Yanjun, do you have some idea what this could be? > > See this fix in the net mailing list. > https://lore.kernel.org/netdev/20200306134518.84416-1-kgraul@xxxxxxxxxxxxx Yes, seems right to me, that work is calling ib_query_port(). #syz dup: WARNING: ODEBUG bug in smc_ib_remove_dev Jason