1. 16 Nov, 2006 2 commits
  2. 15 Nov, 2006 4 commits
    • Robin Holt's avatar
      [IA64] bte_unaligned_copy() transfers one extra cache line. · cbf093e8
      Robin Holt authored
      When called to do a transfer that has a start offset within the cache
      line which is uneven between source and destination and a length which
      terminates the source of the copy exactly on a cache line, one extra
      line gets copied into a temporary buffer.  This is normally not an issue
      since the buffer is a kernel buffer and only the requested information
      gets copied into the user buffer.
      
      The problem arises when the source ends at the very last physical page
      of memory.  That last cache line does not exist and results in the SHUB
      chip raising an MCA.
      Signed-off-by: default avatarRobin Holt <holt@sgi.com>
      Signed-off-by: default avatarDean Nelson <dcn@sgi.com>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      cbf093e8
    • Eric W. Biederman's avatar
      [PATCH] Use delayed disable mode of ioapic edge triggered interrupts · 45c99533
      Eric W. Biederman authored
      Komuro reports that ISA interrupts do not work after a disable_irq(),
      causing some PCMCIA drivers to not work, with messages like
      
      	eth0: Asix AX88190: io 0x300, irq 3, hw_addr xx:xx:xx:xx:xx:xx
      	eth0: found link beat
      	eth0: autonegotiation complete: 100baseT-FD selected
      	eth0: interrupt(s) dropped!
      	eth0: interrupt(s) dropped!
      	eth0: interrupt(s) dropped!
      	...
      
      Linus Torvalds <torvalds@osdl.org> said:
      
        "Now, edge-triggered interrupts are a _lot_ harder to mask, because the
         Intel APIC is an unbelievable piece of sh*t, and has the edge-detect logic
         _before_ the mask logic, so if a edge happens _while_ the device is
         masked, you'll never ever see the edge ever again (unmasking will not
         cause a new edge, so you simply lost the interrupt).
      
         So when you "mask" an edge-triggered IRQ, you can't really mask it at all,
         because if you did that, you'd lose it forever if the IRQ comes in while
         you masked it. Instead, we're supposed to leave it active, and set a flag,
         and IF the IRQ comes in, we just remember it, and mask it at that point
         instead, and then on unmasking, we have to replay it by sending a
         self-IPI."
      
      This trivial patch solves the problem.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Acked-by: default avatarKomuro <komurojun-mbn@nifty.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      45c99533
    • Takashi Iwai's avatar
      [PATCH] ALSA: hda-intel - Disable MSI support by default · 134a11f0
      Takashi Iwai authored
      Disable MSI support on HD-audio driver as default since there are too
      many broken devices.
      
      The module option is changed from disable_msi to enable_msi, too.  For
      turning MSI support on, pass enable_msi=1, instead.
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      134a11f0
    • Jiri Slaby's avatar
      [PATCH] Char: isicom, fix close bug · c387fd85
      Jiri Slaby authored
      port is dereferenced even if it is NULL.  Dereference it _after_ the
      check if (!port)...  Thanks Eric <ef87@yahoo.com> for reporting this.
      
      This fixes
      
      	http://bugzilla.kernel.org/show_bug.cgi?id=7527Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      c387fd85
  3. 14 Nov, 2006 28 commits
  4. 13 Nov, 2006 6 commits