1. 05 Jun, 2009 8 commits
    • Alan Cox's avatar
      [libata] pata_ali: Use IGN_SIMPLEX · a3cb900c
      Alan Cox authored
      Some ALi devices report simplex if they have been disabled and re-enabled, and
      restoring the byte does not work. Ignore it - the needed supporting logic is
      already present for the SATA ULi ports.
      Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      a3cb900c
    • Ville Syrjala's avatar
      ata_piix: Add HP Compaq nc6000 to the broken poweroff list · 65e31643
      Ville Syrjala authored
      HP Compaq nc6000 suffers from the double disk spindown issue.
      Add it to the broken poweroff DMI list.
      Signed-off-by: default avatarVille Syrjala <syrjala@sci.fi>
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      65e31643
    • Tejun Heo's avatar
      ahci: add warning messages for hp laptops with broken suspend · 9b10ae86
      Tejun Heo authored
      Harddisks on HP dv[4-6] and HDX18 fail to come online after resume on
      earlier BIOSen.  Fortunately, HP recently released BIOS updates for
      all machines to fix the issue.  Detect old BIOSen, warn the user to
      update BIOS on boot and suspend attempts and fail suspend.
      
      Kudos to all the bug reporters.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Cc: kernel.org@epperson.homelinux.net
      Cc: emisca@gmail.com
      Cc: Gadi Cohen <dragon@wastelands.net>
      Cc: Paul Swanson <paul@procursa.com>
      Cc: s@ourada.org
      Cc: Trevor Davenport <trevor.davenport@gmail.com>
      Cc: corruptor1972 <steven_tierney@yahoo.co.uk>
      Cc: Victoria Wilson <mail@vwilson.co.uk>
      Cc: khiraly <khiraly.list@gmail.com>
      Cc: Sean <wollombi@gmail.com>
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      9b10ae86
    • Sergei Shtylyov's avatar
      pata_efar: fix PIO2 underclocking · 5f33b3bc
      Sergei Shtylyov authored
      Fix the PIO mode 2 using mode 0 timings -- this driver should enable the
      fast timing bank starting with PIO2, just like the PIIX/ICH drivers do.
      Also, fix/rephrase some comments while at it.
      Signed-off-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      5f33b3bc
    • James Bottomley's avatar
      pata_legacy: wait for async probing · 45bc955b
      James Bottomley authored
      The basic problem here that pata_legacy attaches the host, sees if it found
      any devices and detaches it if none were found.  With async probing, it's not
      waiting until discovery is finished before deciding it has no devices and
      trying the detach leading to this warning:
      
      ata1: PATA max PIO4 cmd 0x1f0 ctl 0x3f6 irq 14
      ------------[ cut here ]------------
      WARNING: at drivers/ata/libata-core.c:6222 ata_host_detach+0x75/0x90()
      Modules linked in:
      Pid: 1, comm: swapper Not tainted 2.6.30-rc7 #1
      Call Trace:
       [<c01fbb05>] ? ata_host_detach+0x75/0x90
       [<c01fbb05>] ? ata_host_detach+0x75/0x90
       [<c01139b5>] ? warn_slowpath_common+0x45/0x80
       [<c01139fa>] ? warn_slowpath_null+0xa/0x10
       [<c01fbb05>] ? ata_host_detach+0x75/0x90
       [<c02f40e0>] ? legacy_init+0x44e/0x87f
       [<c02f3c92>] ? legacy_init+0x0/0x87f
       [<c0101021>] ? _stext+0x21/0x140
       [<c01890ff>] ? proc_register+0x2f/0x190
       [<c018938c>] ? create_proc_entry+0x5c/0xc0
       [<c0135ebe>] ? register_irq_proc+0x6e/0x90
       [<c02e6484>] ? kernel_init+0x6e/0xbf
       [<c02e6416>] ? kernel_init+0x0/0xbf
       [<c01031d7>] ? kernel_thread_helper+0x7/0x10
      ---[ end trace ef1ee36e873ae3a0 ]---
      
      Because it detaches before the probe is complete.
      
      One way to fix it would be to put an async_synchronize_full() before looking
      for devices, which this patch does.  A better way might be to separate libata
      into its own domain and only wait for that.
      Reported-by: default avatarMikael Pettersson <mikpe@it.uu.se>
      Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      45bc955b
    • Oleg Nesterov's avatar
      ptrace: revert "ptrace_detach: the wrong wakeup breaks the ERESTARTxxx logic" · edaba2c5
      Oleg Nesterov authored
      Commit 95a3540d ("ptrace_detach: the wrong
      wakeup breaks the ERESTARTxxx logic") removed the "extra"
      wake_up_process() from ptrace_detach(), but as Jan pointed out this breaks
      the compatibility.
      
      I believe the changelog is right and this wake_up() is wrong in many
      ways, but GDB assumes that ptrace(PTRACE_DETACH, child, 0, 0) always
      wakes up the tracee.
      
      Despite the fact this breaks SIGNAL_STOP_STOPPED/group_stop_count logic,
      and despite the fact this wake_up_process() can break another
      assumption: PTRACE_DETACH with SIGSTOP should leave the tracee in
      TASK_STOPPED case.  Because the untraced child can dequeue SIGSTOP and
      call do_signal_stop() before ptrace_detach() calls wake_up_process().
      
      Revert this change for now.  We need some fixes even if we we want to keep
      the current behaviour, but these fixes are not for 2.6.30.
      Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
      Acked-by: default avatarRoland McGrath <roland@redhat.com>
      Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      edaba2c5
    • Mike Frysinger's avatar
      kbuild: fix detection of CONFIG_FRAME_WARN=0 · 08f67461
      Mike Frysinger authored
      The checking of CONFIG_FRAME_WARN in the top level Makefile forgot to
      actually derefence the variable thus leading to an always true check.
      Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
      Cc: Andi Kleen <ak@suse.de>
      Cc: Sam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      08f67461
    • Oleg Nesterov's avatar
      ptrace: tracehook_report_clone: fix false positives · 087eb437
      Oleg Nesterov authored
      The "trace || CLONE_PTRACE" check in tracehook_report_clone() is not right,
      
      - If the untraced task does clone(CLONE_PTRACE) the new child is not traced,
        we must not queue SIGSTOP.
      
      - If we forked the traced task, but the tracer exits and untraces both the
        forking task and the new child (after copy_process() drops tasklist_lock),
        we should not queue SIGSTOP too.
      
      Change the code to check task_ptrace() != 0 instead. This is still racy, but
      the race is harmless.
      
      We can race with another tracer attaching to this child, or the tracer can
      exit and detach in parallel. But giwen that we didn't do wake_up_new_task()
      yet, the child must have the pending SIGSTOP anyway.
      Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
      Acked-by: default avatarRoland McGrath <roland@redhat.com>
      Cc: Christoph Hellwig <hch@infradead.org>
      Cc: Ingo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      087eb437
  2. 04 Jun, 2009 6 commits
  3. 03 Jun, 2009 9 commits
  4. 02 Jun, 2009 11 commits
  5. 01 Jun, 2009 6 commits