1. 10 Feb, 2008 9 commits
  2. 09 Feb, 2008 3 commits
    • Stephen Hemminger's avatar
      [PKT_SCHED] ematch: oops from uninitialized variable (resend) · 268bcca1
      Stephen Hemminger authored
      Setting up a meta match causes a kernel OOPS because of uninitialized
      elements in tree.
      
      [   37.322381] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
      [   37.322381] IP: [<ffffffff883fc717>] :em_meta:em_meta_destroy+0x17/0x80
      
      [   37.322381] Call Trace:
      [   37.322381]  [<ffffffff803ec83d>] tcf_em_tree_destroy+0x2d/0xa0
      [   37.322381]  [<ffffffff803ecc8c>] tcf_em_tree_validate+0x2dc/0x4a0
      [   37.322381]  [<ffffffff803f06d2>] nla_parse+0x92/0xe0
      [   37.322381]  [<ffffffff883f9672>] :cls_basic:basic_change+0x202/0x3c0
      [   37.322381]  [<ffffffff802a3917>] kmem_cache_alloc+0x67/0xa0
      [   37.322381]  [<ffffffff803ea221>] tc_ctl_tfilter+0x3b1/0x580
      [   37.322381]  [<ffffffff803dffd0>] rtnetlink_rcv_msg+0x0/0x260
      [   37.322381]  [<ffffffff803ee944>] netlink_rcv_skb+0x74/0xa0
      [   37.322381]  [<ffffffff803dffc8>] rtnetlink_rcv+0x18/0x20
      [   37.322381]  [<ffffffff803ee6c3>] netlink_unicast+0x263/0x290
      [   37.322381]  [<ffffffff803cf276>] __alloc_skb+0x96/0x160
      [   37.322381]  [<ffffffff803ef014>] netlink_sendmsg+0x274/0x340
      [   37.322381]  [<ffffffff803c7c3b>] sock_sendmsg+0x12b/0x140
      [   37.322381]  [<ffffffff8024de90>] autoremove_wake_function+0x0/0x30
      [   37.322381]  [<ffffffff8024de90>] autoremove_wake_function+0x0/0x30
      [   37.322381]  [<ffffffff803c7c3b>] sock_sendmsg+0x12b/0x140
      [   37.322381]  [<ffffffff80288611>] zone_statistics+0xb1/0xc0
      [   37.322381]  [<ffffffff803c7e5e>] sys_sendmsg+0x20e/0x360
      [   37.322381]  [<ffffffff803c7411>] sockfd_lookup_light+0x41/0x80
      [   37.322381]  [<ffffffff8028d04b>] handle_mm_fault+0x3eb/0x7f0
      [   37.322381]  [<ffffffff8020c2fb>] system_call_after_swapgs+0x7b/0x80
      Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      268bcca1
    • David S. Miller's avatar
    • Nick Piggin's avatar
      mm: special mapping nopage · b1d0e4f5
      Nick Piggin authored
      Convert special mapping install from nopage to fault.
      
      Because the "vm_file" is NULL for the special mapping, the generic VM
      code has messed up "vm_pgoff" thinking that it's an anonymous mapping
      and the offset does't matter.  For that reason, we need to undo the
      vm_pgoff offset that got added into vmf->pgoff.
      
      [ We _really_ should clean that up - either by making this whole special
        mapping code just use a real file entry rather than that ugly array of
        "struct page" pointers, or by just making the VM code realize that
        even if vm_file is NULL it may not be a regular anonymous mmap.
      							 - Linus ]
      Signed-off-by: default avatarNick Piggin <npiggin@suse.de>
      Cc: linux-mm@kvack.org
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b1d0e4f5
  3. 08 Feb, 2008 28 commits