1. 19 Feb, 2009 4 commits
    • Roel Kluin's avatar
      ATM: misplaced parentheses? · 858671f8
      Roel Kluin authored
      Add missing parentheses
      Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      858671f8
    • Sebastian Siewior's avatar
      net/mv643xx: don't disable the mib timer too early and lock properly · 57e8f26a
      Sebastian Siewior authored
      mib_counters_update() also restarts the timer.
      So the timer is dequeued, the stats are read and then the timer is
      enqueued again. This is "okay" unless someone unloads the module.
      The locking here is also broken:
      mib_counters_update() grabs just a simple spinlock. The only thing the
      lock is good for is to protect the timer func against other callers
      namely mv643xx_eth_stop() && mv643xx_eth_get_ethtool_stats(). That means
      if the spinlock is taken via the ethtool path and than the timer kicks
      in then the box will lock up.
      Signed-off-by: default avatarSebastian Andrzej Siewior <sebastian@breakpoint.cc>
      Acked-by: default avatarLennert Buytenhek <buytenh@marvell.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      57e8f26a
    • Sebastian Siewior's avatar
      net/mv643xx: use GFP_ATOMIC while atomic · 82a5bd6a
      Sebastian Siewior authored
      dev_set_rx_mode() grabs netif_addr_lock_bh():
      
      |BUG: sleeping function called from invalid context at /home/bigeasy/git/cryptodev-2.6/mm/slub.c:1599
      |in_atomic(): 1, irqs_disabled(): 0, pid: 859, name: ifconfig
      |2 locks held by ifconfig/859:
      | #0:  (rtnl_mutex){--..}, at: [<c0239ccc>] rtnl_lock+0x18/0x20
      | #1:  (_xmit_ETHER){-...}, at: [<c022d094>] dev_set_rx_mode+0x1c/0x30
      |[<c029f118>] (dump_stack+0x0/0x14) from [<c003df28>] (__might_sleep+0x11c/0x13c)
      |[<c003de0c>] (__might_sleep+0x0/0x13c) from [<c00a8854>] (kmem_cache_alloc+0x30/0xd4)
      | r5:c78093a0 r4:c034a47c
      |[<c00a8824>] (kmem_cache_alloc+0x0/0xd4) from [<c01a5fd0>] (mv643xx_eth_set_rx_mode+0x70/0x188)
      |[<c01a5f60>] (mv643xx_eth_set_rx_mode+0x0/0x188) from [<c022ced0>] (__dev_set_rx_mode+0x40/0xac)
      |[<c022ce90>] (__dev_set_rx_mode+0x0/0xac) from [<c022d09c>] (dev_set_rx_mode+0x24/0x30)
      | r6:00001043 r5:c78090f8 r4:c7809000
      |[<c022d078>] (dev_set_rx_mode+0x0/0x30) from [<c02304c4>] (dev_open+0xe4/0x114)
      | r5:c7809350 r4:c7809000
      |[<c02303e0>] (dev_open+0x0/0x114) from [<c022fd18>] (dev_change_flags+0xb0/0x190)
      | r5:00000041 r4:c7809000
      |[<c022fc68>] (dev_change_flags+0x0/0x190) from [<c0270250>] (devinet_ioctl+0x2f0/0x710)
      | r7:c7221e70 r6:c7aadb00 r5:00000000 r4:00000001
      |[<c026ff60>] (devinet_ioctl+0x0/0x710) from [<c02717c8>] (inet_ioctl+0xd4/0x110)
      |[<c02716f4>] (inet_ioctl+0x0/0x110) from [<c021fb74>] (sock_ioctl+0x1f4/0x254)
      | r4:c7242b40
      |[<c021f980>] (sock_ioctl+0x0/0x254) from [<c00b8160>] (vfs_ioctl+0x38/0x98)
      | r6:beec9bb8 r5:00008914 r4:c7242b40
      |[<c00b8128>] (vfs_ioctl+0x0/0x98) from [<c00b873c>] (do_vfs_ioctl+0x484/0x4d4)
      | r6:00008914 r5:c7242b40 r4:c74db1c0
      |[<c00b82b8>] (do_vfs_ioctl+0x0/0x4d4) from [<c00b87cc>] (sys_ioctl+0x40/0x64)
      |[<c00b878c>] (sys_ioctl+0x0/0x64) from [<c00269a0>] (ret_fast_syscall+0x0/0x2c)
      |[42949399.520000]  r7:00000036 r6:beec9c80 r5:00000041 r4:beec9bb8
      Signed-off-by: default avatarSebastian Andrzej Siewior <sebastian@breakpoint.cc>
      Acked-by: default avatarLennert Buytenhek <buytenh@marvell.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      82a5bd6a
    • Jie Yang's avatar
      atl1c: Atheros L1C Gigabit Ethernet driver · 43250ddd
      Jie Yang authored
      Supporting AR8131, and AR8132.
      Signed-off-by: default avatarJie Yang <jie.yang@atheros.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      43250ddd
  2. 18 Feb, 2009 1 commit
    • David S. Miller's avatar
      net: Kill skb_truesize_check(), it only catches false-positives. · 92a0acce
      David S. Miller authored
      A long time ago we had bugs, primarily in TCP, where we would modify
      skb->truesize (for TSO queue collapsing) in ways which would corrupt
      the socket memory accounting.
      
      skb_truesize_check() was added in order to try and catch this error
      more systematically.
      
      However this debugging check has morphed into a Frankenstein of sorts
      and these days it does nothing other than catch false-positives.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      92a0acce
  3. 16 Feb, 2009 1 commit
    • Tobias Diedrich's avatar
      net: forcedeth: Fix wake-on-lan regression · 34edaa88
      Tobias Diedrich authored
      Commit f55c21fd ("forcedeth: call
      restore mac addr in nv_shutdown path"), which was introduced to fix
      the regression tracked at
      http://bugzilla.kernel.org/show_bug.cgi?id=11358 causes the
      wake-on-lan mac to be reversed in the shutdown path.  Apparently the
      forcedeth situation is rather messy in that the mac we need to
      writeback for a subsequent modprobe to work is exactly the reverse of
      what is needed for proper wake-on-lan.
      
      The following patch explains the situation in the comments and
      makes the call to nv_restore_mac_addr() conditional (only called if
      we are not really going for poweroff).
      
      Tobias Diedrich wrote:
      > Hmm, I had not tried WOL for some time.
      > With 2.6.29-rc3 is see the following behaviour:
      > 
      > State            WOL Behaviour
      > ------------------------------
      > shutdown         reversed MAC
      > disk/shutdown    reversed MAC
      > disk/platform    OK
      > 
      > Apparently nv_restore_mac_addr() restores the MAC in the wrong order
      > for WOL (at least for my PCI_DEVICE_ID_NVIDIA_NVENET_15).  platform
      > works, because the MAC is not touched in the nv_suspend() path.
      > 
      > A possible fix might be to only call nv_restore_mac_addr() if
      > system_state != SYSTEM_POWER_OFF.
      
      With the following patch:
      shutdown         OK
      disk/shutdown    OK
      disk/platform    OK
      kexec            OK
      Signed-off-by: default avatarTobias Diedrich <ranma+kernel@tdiedrich.de>
      Tested-by: default avatarPhilipp Matthias Hahn <pmhahn@titan.lahn.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      34edaa88
  4. 13 Feb, 2009 21 commits
  5. 11 Feb, 2009 11 commits
  6. 09 Feb, 2009 2 commits
    • Herbert Xu's avatar
      bridge: Fix LRO crash with tun · 4906f998
      Herbert Xu authored
      > Kernel BUG at drivers/net/tun.c:444
      > invalid opcode: 0000 [1] SMP
      > last sysfs file: /class/net/lo/ifindex
      > CPU 0
      > Modules linked in: tun ipt_MASQUERADE iptable_nat ip_nat xt_state ip_conntrack
      > nfnetlink ipt_REJECT xt_tcpudp iptable_filter d
      > Pid: 6912, comm: qemu-kvm Tainted: G      2.6.18-128.el5 #1
      > RIP: 0010:[<ffffffff886f57b0>]  [<ffffffff886f57b0>]
      > :tun:tun_chr_readv+0x2b1/0x3a6
      > RSP: 0018:ffff8102202c5e48  EFLAGS: 00010246
      > RAX: 0000000000000000 RBX: ffff8102202c5e98 RCX: 0000000004010000
      > RDX: ffff810227063680 RSI: ffff8102202c5e9e RDI: ffff8102202c5e92
      > RBP: 0000000000010ff6 R08: 0000000000000000 R09: 0000000000000001
      > R10: ffff8102202c5e94 R11: 0000000000000202 R12: ffff8102275357c0
      > R13: ffff81022755e500 R14: 0000000000000000 R15: ffff8102202c5ef8
      > FS:  00002ae4398db980(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000
      > CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
      > CR2: 00002ae4ab514000 CR3: 0000000221344000 CR4: 00000000000026e0
      > Process qemu-kvm (pid: 6912, threadinfo ffff8102202c4000, task
      > ffff81022e58d820)
      > Stack:  00000000498735cb ffff810229d1a3c0 0000000000000000 ffff81022e58d820
      >  ffffffff8008a461 ffff81022755e528 ffff81022755e528 ffffffff8009f925
      >  000005ea05ea0000 ffff8102209d0000 00001051143e1600 ffffffff8003c00e
      > Call Trace:
      >  [<ffffffff8008a461>] default_wake_function+0x0/0xe
      >  [<ffffffff8009f925>] enqueue_hrtimer+0x55/0x70
      >  [<ffffffff8003c00e>] hrtimer_start+0xbc/0xce
      >  [<ffffffff886f58bf>] :tun:tun_chr_read+0x1a/0x1f
      >  [<ffffffff8000b3f3>] vfs_read+0xcb/0x171
      >  [<ffffffff800117d4>] sys_read+0x45/0x6e
      >  [<ffffffff8005d116>] system_call+0x7e/0x83
      >
      >
      > Code: 0f 0b 68 40 62 6f 88 c2 bc 01 f6 42 0a 08 74 0c 80 4c 24 41
      > RIP  [<ffffffff886f57b0>] :tun:tun_chr_readv+0x2b1/0x3a6
      >  RSP <ffff8102202c5e48>
      >  <0>Kernel panic - not syncing: Fatal exception
      
      This crashed when an LRO packet generated by bnx2x reached a
      tun device through the bridge.  We're supposed to drop it at
      the bridge.  However, because the check was placed in br_forward
      instead of __br_forward, it's only effective if we are sending
      the packet through a single port.
      
      This patch fixes it by moving the check into __br_forward.
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4906f998
    • Noriaki TAKAMIYA's avatar
      IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created. · 20461c17
      Noriaki TAKAMIYA authored
      When the user creates IPv6 over IPv6 tunnel, the device name created
      by the kernel isn't set to t->parm.name, which is referred as the
      result of ioctl().
      Signed-off-by: default avatarNoriaki TAKAMIYA <takamiya@po.ntts.co.jp>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      20461c17