Hi, I can reproduce this on 10.04.01.
$ uname -a Linux newslut 2.6.32-24-generic #39-Ubuntu SMP Wed Jul 28 05:14:15 UTC 2010 x86_64 GNU/Linux 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) The board is a Gigabyte ga-d525tud. I see the following messages about 4 or 5 times and then the box will completely hang and need a power cycle to restore it. Oct 11 23:06:55 newslut kernel: [ 6446.804013] ------------[ cut here ]------------ Oct 11 23:06:55 newslut kernel: [ 6446.804028] WARNING: at /build/buildd/linux-2.6.32/net/ipv4/tcp.c:1514 tcp_recvmsg+0xc09/0xe80() Oct 11 23:06:55 newslut kernel: [ 6446.804046] Hardware name: D525TUD Oct 11 23:06:55 newslut kernel: [ 6446.804056] Modules linked in: binfmt_misc snd_hda_codec_realtek fbcon tileblit font bitblit softcursor vga16fb vgastate snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq ppdev i915 snd_timer snd_seq_device drm_kms_helper psmouse serio_raw parport_pc snd drm i2c_algo_bit soundcore intel_agp snd_page_alloc video output lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov hid_apple raid6_pq usbhid hid usb_storage async_tx sata_sil raid1 pata_jmicron r8169 ahci mii raid0 multipath linear Oct 11 23:06:55 newslut kernel: [ 6446.804319] Pid: 2237, comm: nc Tainted: G W 2.6.32-24-generic #39-Ubuntu Oct 11 23:06:55 newslut kernel: [ 6446.804334] Call Trace: Oct 11 23:06:55 newslut kernel: [ 6446.804348] [<ffffffff81066dbb>] warn_slowpath_common+0x7b/0xc0 Oct 11 23:06:55 newslut kernel: [ 6446.804366] [<ffffffff81066e14>] warn_slowpath_null+0x14/0x20 Oct 11 23:06:55 newslut kernel: [ 6446.804383] [<ffffffff8149f109>] tcp_recvmsg+0xc09/0xe80 Oct 11 23:06:55 newslut kernel: [ 6446.804401] [<ffffffff8104bc49>] ? __wake_up_common+0x59/0x90 Oct 11 23:06:55 newslut kernel: [ 6446.804421] [<ffffffff81450879>] sock_common_recvmsg+0x39/0x50 Oct 11 23:06:55 newslut kernel: [ 6446.804440] [<ffffffff81450469>] sock_aio_read+0x159/0x160 Oct 11 23:06:55 newslut kernel: [ 6446.804457] [<ffffffff8114c462>] ? pipe_write+0x2d2/0x650 Oct 11 23:06:55 newslut kernel: [ 6446.804474] [<ffffffff81143a6a>] do_sync_read+0xfa/0x140 Oct 11 23:06:55 newslut kernel: [ 6446.804492] [<ffffffff810fc35d>] ? free_hot_page+0x2d/0x60 Oct 11 23:06:55 newslut kernel: [ 6446.804510] [<ffffffff81085430>] ? autoremove_wake_function+0x0/0x40 Oct 11 23:06:55 newslut kernel: [ 6446.804529] [<ffffffff8101179c>] ? __switch_to+0x1ac/0x320 Oct 11 23:06:55 newslut kernel: [ 6446.804547] [<ffffffff81058670>] ? finish_task_switch+0x50/0xe0 Oct 11 23:06:55 newslut kernel: [ 6446.804566] [<ffffffff81253076>] ? security_file_permission+0x16/0x20 Oct 11 23:06:55 newslut kernel: [ 6446.804585] [<ffffffff81144451>] vfs_read+0x181/0x1a0 Oct 11 23:06:55 newslut kernel: [ 6446.804601] [<ffffffff81144541>] sys_read+0x51/0x80 Oct 11 23:06:55 newslut kernel: [ 6446.804618] [<ffffffff8115607c>] ? sys_poll+0x7c/0x110 Oct 11 23:06:55 newslut kernel: [ 6446.804636] [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b Oct 11 23:06:55 newslut kernel: [ 6446.804651] ---[ end trace 136e41b2b0f59766 ]--- ** Changed in: linux (Ubuntu) Status: Invalid => New -- WARNING: at /build/buildd/linux-2.6.32/net/ipv4/tcp.c:1452 tcp_recvmsg+0xb08/0xbc0() https://bugs.launchpad.net/bugs/525174 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs