From: Sergey Senozhatsky <sergey.senozhatsky@mail.by>
To: James Morris <jmorris@namei.org>
Cc: Miloslav Trmac <mitr@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: BUG: scheduling while atomic reintroduced
Date: Wed, 29 Jul 2009 01:18:42 +0300 [thread overview]
Message-ID: <20090728221842.GD3223@localdomain.by> (raw)
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something is wrong with tty->termios_mutex
kernel: [16662.855163] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000203
kernel: [16662.855172] Modules linked in: usb_storage ppp_async crc_ccitt ppp_generic slhc ipv6 fuse loop snd_hda_codec_si3054 snd_hda_codec_realtek
snd_hda_intel snd_hda_codec snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq asus_laptop rng_core snd_timer snd_seq_device snd i2c_i801 soundcore snd_page_alloc psmouse
evdev pcspkr serio_raw usbhid hid sg sd_mod sr_mod cdrom sdhci_pci sdhci ata_generic mmc_core pata_acpi uhci_hcd ricoh_mmc led_class ehci_hcd ata_piix ide_pci_generic usbcore
r8169 mii
kernel: [16662.855292] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc4-git2 #1
kernel: [16662.855298] Call Trace:
kernel: [16662.855313] [<c140265f>] ? printk+0x23/0x36
kernel: [16662.855325] [<c103a865>] __schedule_bug+0x75/0x80
kernel: [16662.855336] [<c14031f8>] schedule+0x5c8/0xb70
kernel: [16662.855347] [<c1068d4b>] ? sched_clock_cpu+0x16b/0x1f0
kernel: [16662.855357] [<c14058eb>] ? _spin_lock+0x1b/0x50
kernel: [16662.855367] [<c10327a2>] ? task_rq_lock+0x42/0x90
kernel: [16662.855380] [<c112e5b1>] ? ep_poll_callback+0xa1/0xe0
kernel: [16662.855391] [<c1404234>] __mutex_lock_slowpath+0xe4/0x190
kernel: [16662.855401] [<c1404035>] mutex_lock+0x25/0x50
kernel: [16662.855411] [<c12d3443>] tty_throttle+0x23/0x70
kernel: [16662.855422] [<c12d1d17>] n_tty_receive_buf+0x407/0x1200
kernel: [16662.855432] [<c13b9348>] ? tcp_v4_do_rcv+0x258/0x390
kernel: [16662.855443] [<c13a22bc>] ? __inet_lookup_established+0x2bc/0x2f0
kernel: [16662.855454] [<c140608e>] ? _spin_unlock+0x1e/0x60
kernel: [16662.855463] [<c13b99ef>] ? tcp_v4_rcv+0x56f/0x7a0
kernel: [16662.855475] [<c109ccf0>] ? move_native_irq+0x20/0x70
kernel: [16662.855485] [<c1405f70>] ? _spin_unlock_irqrestore+0x20/0x60
kernel: [16662.855494] [<c12d4352>] ? tty_ldisc_try+0x42/0x60
kernel: [16662.855504] [<c12d55e5>] flush_to_ldisc+0xf5/0x1f0
kernel: [16662.855514] [<c12d575b>] tty_flip_buffer_push+0x7b/0x90
kernel: [16662.855524] [<c12d68b5>] pty_write+0x55/0x80
kernel: [16662.855537] [<f8095c57>] ppp_async_push+0x397/0x480 [ppp_async]
kernel: [16662.855551] [<f80964f5>] ppp_async_process+0x85/0x98 [ppp_async]
kernel: [16662.855561] [<c104cad3>] tasklet_action+0xe3/0xf0
kernel: [16662.855570] [<c104d417>] __do_softirq+0xa7/0x210
kernel: [16662.855580] [<c104d5cd>] do_softirq+0x4d/0x60
kernel: [16662.855589] [<c104d662>] ksoftirqd+0x82/0x1a0
kernel: [16662.855598] [<c104d5e0>] ? ksoftirqd+0x0/0x1a0
kernel: [16662.855608] [<c10618b4>] kthread+0x84/0x90
kernel: [16662.855618] [<c1061830>] ? kthread+0x0/0x90
kernel: [16662.855629] [<c1003e7f>] kernel_thread_helper+0x7/0x18
commit 26a2e20f4a966bebc312836aeb4423fbfd4e33e2
commit 38db89799bdf11625a831c5af33938dcb11908b6
Sergey
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next reply other threads:[~2009-07-28 22:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-28 22:18 Sergey Senozhatsky [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-07-29 8:28 Sergey Senozhatsky
2009-07-29 11:45 ` Alan Cox
2009-07-28 19:47 Sergey Senozhatsky
2009-07-28 18:00 Sergey Senozhatsky
2009-07-28 19:20 ` Alan Cox
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