1. 30 12月, 2008 6 次提交
  2. 06 11月, 2008 5 次提交
  3. 21 10月, 2008 2 次提交
  4. 16 10月, 2008 1 次提交
  5. 13 10月, 2008 3 次提交
  6. 04 10月, 2008 10 次提交
  7. 14 9月, 2008 1 次提交
    • A
      [SCSI] qla2xxx: Defer enablement of RISC interrupts until ISP initialization completes. · 048feec5
      Andrew Vasquez 提交于
      Josip Rodin noted
      (http://article.gmane.org/gmane.linux.ports.sparc/10152) the
      driver oopsing during registration of an rport to the
      FC-transport layer with a backtrace indicating a dereferencing of
      an shost->shost_data equal to NULL.  David Miller identified a
      small window in driver logic where this could happen:
      
          > Look at how the driver registers the IRQ handler before the host has
          > been registered with the SCSI layer.
          >
          > That leads to a window of time where the shost hasn't been setup
          > fully, yet ISRs can come in and trigger DPC thread events, such as
          > loop resyncs, which expect the transport area to be setup.
          >
          > But it won't be setup, because scsi_add_host() hasn't finished yet.
          >
          > Note that in Josip's crash log, we don't even see the
          >
          >         qla_printk(KERN_INFO, ha, "\n"
          >             " QLogic Fibre Channel HBA Driver: %s\n"
          >             "  QLogic %s - %s\n"
          >             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
          >  ...
          >
          > message yet.
          >
          > Which means that the crash occurs between qla2x00_request_irqs()
          > and printing that message.
      
      Close this window by enabling RISC interrupts after the host has
      been registered with the SCSI midlayer.
      Reported-by: NJosip Rodin <joy@entuzijast.net>
      Cc: Stable Tree <stable@kernel.org>
      Signed-off-by: NAndrew Vasquez <andrew.vasquez@qlogic.com>
      Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      048feec5
  8. 24 8月, 2008 1 次提交
  9. 16 8月, 2008 7 次提交
  10. 28 7月, 2008 1 次提交
  11. 27 7月, 2008 3 次提交