1. 05 Jun, 2006 12 commits
  2. 04 Jun, 2006 1 commit
    • David S. Miller's avatar
      [SPARC64]: Fix missing fold at end of checksums. · ae5de0ff
      David S. Miller authored
      Both csum_partial() and the csum_partial_copy*() family of routines
      forget to do a final fold on the computed checksum value on sparc64.
      So do the standard Sparc "add + set condition codes, add carry"
      sequence, then make sure the high 32-bits of the return value are
      clear.
      
      Based upon some excellent detective work and debugging done by
      Richard Braun and Samuel Thibault.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ae5de0ff
  3. 03 Jun, 2006 1 commit
    • Linus Torvalds's avatar
      Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 · 672c6108
      Linus Torvalds authored
      * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
        [SCSI] scsi_lib.c: properly count the number of pages in scsi_req_map_sg()
        [SCSI] scsi_transport_sas: make write attrs writeable
        [SCSI] scsi_transport_sas; fix user_scan
        [SCSI] ppa: fix for machines with highmem
        [SCSI] mptspi: reset handler shouldn't be called for other bus protocols
        [SCSI] Blacklist entry for HP dat changer
      672c6108
  4. 02 Jun, 2006 8 commits
    • Stephen Hemminger's avatar
      [TCP] tcp_highspeed: Fix problem observed by Xiaoliang (David) Wei · fb80a6e1
      Stephen Hemminger authored
      When snd_cwnd is smaller than 38 and the connection is in
      congestion avoidance phase (snd_cwnd > snd_ssthresh), the snd_cwnd
      seems to stop growing.
      
      The additive increase was confused because C array's are 0 based.
      Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fb80a6e1
    • Linus Torvalds's avatar
      Merge master.kernel.org:/home/rmk/linux-2.6-serial · 0f326215
      Linus Torvalds authored
      * master.kernel.org:/home/rmk/linux-2.6-serial:
        [SERIAL] Update parity handling documentation
      0f326215
    • Linus Torvalds's avatar
      Merge master.kernel.org:/home/rmk/linux-2.6-arm · 891eca14
      Linus Torvalds authored
      * master.kernel.org:/home/rmk/linux-2.6-arm:
        [ARM] 3540/1: ixp23xx: deal with gap in interrupt bitmasks
        [ARM] 3539/1: ixp23xx: fix __arch_ixp23xx_is_coherent() for A1 stepping
      891eca14
    • Linus Torvalds's avatar
      Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 · 48e49ead
      Linus Torvalds authored
      * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
        [SPARC64]: Fix D-cache corruption in mremap
        [SPARC64]: Make smp_processor_id() functional before start_kernel()
      48e49ead
    • Lennert Buytenhek's avatar
      [ARM] 3540/1: ixp23xx: deal with gap in interrupt bitmasks · ec8510f6
      Lennert Buytenhek authored
      Patch from Lennert Buytenhek
      
      On the ixp23xx, the microengine thread interrupt sources are numbered
      56..119, but their mask/status bits are located in bit positions 64..127
      in the various registers in the interrupt controller (bit positions
      56..63 are unused.)
      
      We don't deal with this, so currently, when asked to enable IRQ 64, we
      will enable IRQ 56 instead.
      
      The only interrupts >= 64 are the thread interrupt sources, and there
      are no in-tree users of those yet, so this is fortunately not a big
      problem, but this needs fixing anyway.
      Signed-off-by: default avatarLennert Buytenhek <buytenh@wantstofly.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      ec8510f6
    • Lennert Buytenhek's avatar
      [ARM] 3539/1: ixp23xx: fix __arch_ixp23xx_is_coherent() for A1 stepping · a77bc691
      Lennert Buytenhek authored
      Patch from Lennert Buytenhek
      
      The current __ixp23xx_arch_is_coherent() check assumes that the
      lower byte of IXP23XX_PRODUCT_ID is identical to the lower byte of
      processor_id, but this is not the case, and because of this we were
      incorrectly enabling coherency on A1 stepping CPUs.
      
      Stepping A1 of the ixp2350, which has a PRODUCT_ID of 0x401, has '02'
      in the lower byte of processor_id, while A2, with a PRODUCT_ID of
      0x402, has '04' in the lower byte of processor_id.
      
      So, to check for >= A2, we really need to check the lower byte of
      processor_id against >= 4.
      Signed-off-by: default avatarLennert Buytenhek <buytenh@wantstofly.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      a77bc691
    • Ingo Molnar's avatar
      [PATCH] slab.c: fix offslab_limit bug · b1ab41c4
      Ingo Molnar authored
      mm/slab.c's offlab_limit logic is totally broken.
      
      Firstly, "offslab_limit" is a global variable while it should either be
      calculated in situ or should be passed in as a parameter.
      
      Secondly, the more serious problem with it is that the condition for
      calculating it:
      
                     if (!(OFF_SLAB(sizes->cs_cachep))) {
                             offslab_limit = sizes->cs_size - sizeof(struct slab);
                             offslab_limit /= sizeof(kmem_bufctl_t);
      
      is in total disconnect with the condition that makes use of it:
      
                     /* More than offslab_limit objects will cause problems */
                     if ((flags & CFLGS_OFF_SLAB) && num > offslab_limit)
                             break;
      
      but due to offslab_limit being a global variable this breakage was
      hidden.
      
      Up until lockdep came along and perturbed the slab sizes sufficiently so
      that the first off-slab cache would still see a (non-calculated) zero
      value for offslab_limit and would panic with:
      
        kmem_cache_create: couldn't create cache size-512.
      
        Call Trace:
         [<ffffffff8020a5b9>] show_trace+0x96/0x1c8
         [<ffffffff8020a8f0>] dump_stack+0x13/0x15
         [<ffffffff8022994f>] panic+0x39/0x21a
         [<ffffffff80270814>] kmem_cache_create+0x5a0/0x5d0
         [<ffffffff80aced62>] kmem_cache_init+0x193/0x379
         [<ffffffff80abf779>] start_kernel+0x17f/0x218
         [<ffffffff80abf263>] _sinittext+0x263/0x26a
      
        Kernel panic - not syncing: kmem_cache_create(): failed to create slab `size-512'
      
      Paolo Ornati's config on x86_64 managed to trigger it.
      
      The fix is to move the calculation to the place that makes use of it.
      This also makes slab.o 54 bytes smaller.
      
      Btw., the check itself is quite silly. Its intention is to test whether
      the number of objects per slab would be higher than the number of slab
      control pointers possible. In theory it could be triggered: if someone
      tried to allocate 4-byte objects cache and explicitly requested with
      CFLGS_OFF_SLAB. So i kept the check.
      
      Out of historic interest i checked how old this bug was and it's
      ancient, 10 years old! It is the oldest hidden and then truly triggering
      bugs i ever saw being fixed in the kernel!
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      b1ab41c4
    • Peter Korsgaard's avatar
      [SERIAL] Update parity handling documentation · 89f3da3e
      Peter Korsgaard authored
      Update documentation to match reality. INPCK controls whether input
      parity checking is enabled.
      Signed-off-by: default avatarPeter Korsgaard <jacmet@sunsite.dk>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      89f3da3e
  5. 01 Jun, 2006 7 commits
  6. 31 May, 2006 11 commits