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    SubjectRe: kernel 3.0: BUG: soft lockup: find_get_pages+0x51/0x110
    Date
    On poniedziałek, 15 sierpnia 2011 o 18:43:22 Justin Piszcz wrote:
    > Hello,
    >
    > What causes this(?) -- am I out of memory(?) or is this a kernel bug?
    >
    > [104147.717815] BUG: soft lockup - CPU#13 stuck for 23s! [kswapd0:934]
    > [104147.717820] Modules linked in: dm_mod tcp_diag parport_pc ppdev lp
    > parport inet_diag ub pl2303 ftdi_sio snd_usb_audio snd_pcm_oss
    > snd_mixer_oss snd_pcm snd_page_alloc snd_hwdep snd_usbmidi_lib
    > snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event
    > snd_seq snd_timer snd_seq_device snd soundcore usbserial cdc_acm nouveau
    > serio_raw ttm drm_kms_helper drm agpgart i2c_algo_bit mxm_wmi wmi
    > i7core_edac edac_core video [104147.717872] CPU 13
    > [104147.717874] Modules linked in: dm_mod tcp_diag parport_pc ppdev lp
    > parport inet_diag ub pl2303 ftdi_sio snd_usb_audio snd_pcm_oss
    > snd_mixer_oss snd_pcm snd_page_alloc snd_hwdep snd_usbmidi_lib
    > snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event
    > snd_seq snd_timer snd_seq_device snd soundcore usbserial cdc_acm nouveau
    > serio_raw ttm drm_kms_helper drm agpgart i2c_algo_bit mxm_wmi wmi
    > i7core_edac edac_core video [104147.717916]
    > [104147.717921] Pid: 934, comm: kswapd0 Not tainted 3.0.0 #4 Supermicro
    > X8DTH-i/6/iF/6F/X8DTH [104147.717928] RIP: 0010:[<ffffffff81081f71>]
    > [<ffffffff81081f71>] find_get_pages+0x51/0x110 [104147.717940] RSP:
    > 0018:ffff880626127ba0 EFLAGS: 00000246
    [...]

    It's regression? 2.6.39 works OK?

    Regards
    --
    Maciej Rutecki
    http://www.maciek.unixy.pl
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