On Mon, 2016-11-21 at 12:34 -0500, Douglas Gilbert wrote: > There was also this change which seems closer to the problem area: > > commit 461c7fa126794157484dca48e88effa4963e3af3 > Author: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > Date: Tue Feb 2 16:57:35 2016 -0800 > > drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration > ... > > diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c > index 503ab8b..5e82067 100644 > --- a/drivers/scsi/sg.c > +++ b/drivers/scsi/sg.c > @@ -1261,7 +1261,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma) > } > > sfp->mmap_called = 1; > - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; > + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; > vma->vm_private_data = sfp; > vma->vm_ops = &sg_mmap_vm_ops; > return 0; > > Doug Gilbert > Neither this change nor "sg: fix dxferp in from_to case" appears to fix the issue when applied on top of 4.4. Still looking... -Ewan -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
