Re: WARNING: bad unlock balance in ucma_event_handler

2019-06-11 Thread Jason Gunthorpe
On Mon, Jun 10, 2019 at 01:45:24PM -0700, Eric Biggers wrote: > On Mon, Jun 10, 2019 at 04:47:32PM -0300, Jason Gunthorpe wrote: > > > > There are many unfixed syzkaller bugs in rdma_cm, so I'm not surprised > > it is still happening.. > > > > Nobody has stepped forward to work on this code, and

Re: WARNING: bad unlock balance in ucma_event_handler

2019-06-10 Thread Eric Biggers
On Mon, Jun 10, 2019 at 04:47:32PM -0300, Jason Gunthorpe wrote: > > There are many unfixed syzkaller bugs in rdma_cm, so I'm not surprised > it is still happening.. > > Nobody has stepped forward to work on this code, and it is not a > simple mess to understand, let alone try to fix. > But

RE: WARNING: bad unlock balance in ucma_event_handler

2019-06-10 Thread Hefty, Sean
> That is as far as I can get, trying to figure out how to rework > ctx->file to be properly ref counted, accessed and locked, is a major > task.. I don't even know right now what migrate_id is supposed to be > for :( By default, events for a new connection (rdma_cm_id) go to the fd

Re: WARNING: bad unlock balance in ucma_event_handler

2019-06-10 Thread Jason Gunthorpe
On Mon, Jun 10, 2019 at 11:48:54AM -0700, Eric Biggers wrote: > On Wed, Jun 13, 2018 at 11:05:43AM -0600, Jason Gunthorpe wrote: > > On Wed, Jun 13, 2018 at 06:47:02AM -0700, syzbot wrote: > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit:73fcb1a370c7

Re: WARNING: bad unlock balance in ucma_event_handler

2019-06-10 Thread Eric Biggers
On Wed, Jun 13, 2018 at 11:05:43AM -0600, Jason Gunthorpe wrote: > On Wed, Jun 13, 2018 at 06:47:02AM -0700, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:73fcb1a370c7 Merge branch 'akpm' (patches from Andrew) > > git tree: upstream > >

Re: WARNING: bad unlock balance in ucma_event_handler

2018-06-13 Thread Jason Gunthorpe
On Wed, Jun 13, 2018 at 06:47:02AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:73fcb1a370c7 Merge branch 'akpm' (patches from Andrew) > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=16d7082780 > kernel

Re: WARNING: bad unlock balance in ucma_event_handler

2018-06-13 Thread Jason Gunthorpe
On Wed, Jun 13, 2018 at 06:47:02AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:73fcb1a370c7 Merge branch 'akpm' (patches from Andrew) > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=16d7082780 > kernel

WARNING: bad unlock balance in ucma_event_handler

2018-06-13 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:73fcb1a370c7 Merge branch 'akpm' (patches from Andrew) git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16d7082780 kernel config: https://syzkaller.appspot.com/x/.config?x=f3b4e30da84ec1ed

WARNING: bad unlock balance in ucma_event_handler

2018-06-13 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:73fcb1a370c7 Merge branch 'akpm' (patches from Andrew) git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16d7082780 kernel config: https://syzkaller.appspot.com/x/.config?x=f3b4e30da84ec1ed