4.9-STABLE hands on copy

[Dmitry Knyazev]

Hello freebsd-smp,

  Multiprocessor motherboard: 2 Intel Pentium III (666.35-MHz)

  when compiled with:
  options SMP
  options APIC_IO

  everething seems to work okay, but problem rises on backups:
  when doing SCSI disk backup to IDE disk system completely hangs at any of
  files copied. It may be any file and hang can arise at any moment.
  for copying were used cpdup, dump/restore, cp -Rpf at last!
  Actually no error messages appeared at all, but one it was
  something like: got block 270493 but expecting 270492...

  With GENERIC kernel it seems to work okay

  So i suspect some inconsistencies happened with concurrent access to
  disks, got any ideas ?

  

-- 
Best regards,
 Dmitry                          mailto:dfr at wm.ru