Re: [Bug #13522] BUG: scheduling while atomic

From: Sergey Senozhatsky
Date: Tue Jul 07 2009 - 12:26:16 EST

On (07/07/09 02:00), Rafael J. Wysocki wrote:
>
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.30. Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13522
> Subject : BUG: scheduling while atomic
> Submitter : Sergey Senozhatsky <sergey.senozhatsky@xxxxxxx>
> Date : 2009-06-12 19:29 (25 days old)
> References : http://lkml.org/lkml/2009/6/29/237
>

Hello Rafael,
it should be listed.

kernel: [ 1048.295158] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000506
kernel: [ 1048.295169] INFO: lockdep is turned off.
kernel: [ 1048.295176] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1048.295334] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1048.295342] Call Trace:
kernel: [ 1048.295361] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1048.295375] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1048.295388] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.295403] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.295416] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1048.295428] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.295438] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.295451] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1048.295461] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.295472] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1048.295483] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1048.295495] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.295507] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.295519] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.295531] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.295550] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.295561] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.295573] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.295585] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.295596] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1048.295608] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1048.295624] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1048.295639] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1048.295655] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1048.295670] [<f8097816>] ? ppp_xmit_process+0x26/0x570 [ppp_generic]
kernel: [ 1048.295685] [<f8097816>] ? ppp_xmit_process+0x26/0x570 [ppp_generic]
kernel: [ 1048.295702] [<f809784a>] ppp_xmit_process+0x5a/0x570 [ppp_generic]
kernel: [ 1048.295717] [<f8097fa5>] ? ppp_channel_push+0x95/0xd0 [ppp_generic]
kernel: [ 1048.295733] [<f8097fb4>] ppp_channel_push+0xa4/0xd0 [ppp_generic]
kernel: [ 1048.295748] [<f8097ffe>] ppp_output_wakeup+0x1e/0x40 [ppp_generic]
kernel: [ 1048.295760] [<f80b43f0>] ppp_async_process+0x90/0xa0 [ppp_async]
kernel: [ 1048.295773] [<c104ee15>] tasklet_action+0xf5/0x110
kernel: [ 1048.295784] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1048.295795] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1048.295807] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1048.295817] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1048.295831] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1048.295843] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1048.295855] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1048.296425] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1048.296431] INFO: lockdep is turned off.
kernel: [ 1048.296437] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1048.296648] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1048.296661] Call Trace:
kernel: [ 1048.296685] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1048.296706] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1048.296723] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.296741] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.296759] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1048.296779] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.296794] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.296811] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1048.296828] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.296842] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1048.296858] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1048.296872] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.296885] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1048.296899] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.296916] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.296937] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.296955] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.296973] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.296989] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.297007] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.297023] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.297041] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1048.297057] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1048.297074] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1048.297096] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1048.297113] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1048.297135] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1048.297150] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.297168] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.297185] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1048.297204] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1048.297224] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.297238] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1048.297259] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1048.297274] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1048.297290] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1048.297305] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1048.297321] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1048.297342] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1048.297356] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1048.297375] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1048.297389] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1048.297401] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1048.297413] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1048.297433] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1048.297453] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1048.298100] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1048.298115] INFO: lockdep is turned off.
kernel: [ 1048.298127] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1048.298482] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1048.298490] Call Trace:
kernel: [ 1048.298507] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1048.298527] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1048.298544] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.298562] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.298580] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1048.298594] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.298608] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.298626] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1048.298641] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1048.298662] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1048.298683] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1048.298698] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.298716] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1048.298732] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.298750] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.298764] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1048.298780] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.298799] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.298817] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1048.298834] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.298849] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.298866] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1048.298882] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1048.298897] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1048.298916] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1048.298944] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1048.298963] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1048.298980] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.299000] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1048.299013] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1048.299038] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1048.299054] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1048.299074] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1048.299092] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1048.299110] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1048.299130] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1048.299145] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1048.299168] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1048.299186] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1048.299208] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1048.299226] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1048.299240] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1048.299253] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1048.299268] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1048.299288] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1048.299301] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1067.299845] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000506
kernel: [ 1067.299854] INFO: lockdep is turned off.
kernel: [ 1067.299860] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1067.300216] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1067.300229] Call Trace:
kernel: [ 1067.300249] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1067.300270] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1067.300289] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.300306] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.300324] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1067.300347] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.300365] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.300384] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1067.300400] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.300418] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1067.300438] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1067.300452] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.300468] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.300485] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.300502] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.300518] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.300535] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.300554] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1067.300569] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1067.300585] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1067.300600] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1067.300621] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1067.300640] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1067.300665] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1067.300687] [<f8097816>] ? ppp_xmit_process+0x26/0x570 [ppp_generic]
kernel: [ 1067.300709] [<f8097816>] ? ppp_xmit_process+0x26/0x570 [ppp_generic]
kernel: [ 1067.300731] [<f809784a>] ppp_xmit_process+0x5a/0x570 [ppp_generic]
kernel: [ 1067.300746] [<f8097fa5>] ? ppp_channel_push+0x95/0xd0 [ppp_generic]
kernel: [ 1067.300763] [<f8097fb4>] ppp_channel_push+0xa4/0xd0 [ppp_generic]
kernel: [ 1067.300781] [<f8097ffe>] ppp_output_wakeup+0x1e/0x40 [ppp_generic]
kernel: [ 1067.300804] [<f80b43f0>] ppp_async_process+0x90/0xa0 [ppp_async]
kernel: [ 1067.300822] [<c104ee15>] tasklet_action+0xf5/0x110
kernel: [ 1067.300841] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1067.300855] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1067.300873] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1067.300886] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1067.300901] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1067.300918] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1067.300937] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1067.301595] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1067.301608] INFO: lockdep is turned off.
kernel: [ 1067.301617] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1067.301969] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1067.301981] Call Trace:
kernel: [ 1067.301998] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1067.302018] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1067.302031] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.302052] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.302072] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1067.302092] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.302110] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.302126] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1067.302139] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1067.302152] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1067.302167] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1067.302188] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1067.302203] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1067.302219] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.302234] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.302251] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1067.302268] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.302284] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.302301] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1067.302319] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1067.302339] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1067.302352] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1067.302370] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1067.302389] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1067.302412] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1067.302437] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1067.302454] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1067.302473] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1067.302490] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1067.302503] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1067.302526] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1067.302541] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1067.302558] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1067.302577] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1067.302601] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1067.302622] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1067.302640] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1067.302654] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1067.302675] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1067.302698] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1067.302713] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1067.302728] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1067.302745] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1067.302761] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1067.302783] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1067.302798] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1076.490281] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1076.490290] INFO: lockdep is turned off.
kernel: [ 1076.490296] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1076.490452] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1076.490460] Call Trace:
kernel: [ 1076.490478] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1076.490492] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1076.490506] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.490521] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.490534] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1076.490545] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.490556] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.490568] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1076.490579] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.490590] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1076.490601] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1076.490613] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.490625] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1076.490636] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.490648] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.490659] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.490672] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.490682] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.490693] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.490705] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.490717] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.490728] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1076.490741] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1076.490757] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1076.490774] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1076.490790] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1076.490802] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1076.490815] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.490835] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.490846] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1076.490861] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1076.490874] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.490885] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1076.490900] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1076.490912] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1076.490925] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1076.490937] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1076.490948] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1076.490960] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1076.490972] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1076.490984] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1076.490995] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1076.491005] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1076.491017] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1076.491029] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1076.491041] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1076.491622] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1076.491629] INFO: lockdep is turned off.
kernel: [ 1076.491635] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1076.491786] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1076.491794] Call Trace:
kernel: [ 1076.491807] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1076.491818] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1076.491829] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.491842] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.491856] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1076.491867] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.491877] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.491889] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1076.491900] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1076.491910] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1076.491921] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1076.491933] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.491945] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1076.491955] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.491967] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.491979] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1076.491991] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.492001] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.492012] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1076.492024] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.492035] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.492047] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1076.492058] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1076.492072] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1076.492088] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1076.492103] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1076.492114] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1076.492126] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.492138] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1076.492149] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1076.492164] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1076.492176] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1076.492187] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1076.492202] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1076.492213] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1076.492225] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1076.492236] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1076.492248] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1076.492259] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1076.492270] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1076.492282] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1076.492292] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1076.492302] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1076.492313] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1076.492325] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1076.492336] [<c1004217>] kernel_thread_helper+0x7/0x70
kernel: [ 1117.962740] BUG: scheduling while atomic: ksoftirqd/0/4/0x00000406
kernel: [ 1117.962750] INFO: lockdep is turned off.
kernel: [ 1117.962756] Modules linked in: ppp_deflate zlib_deflate 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 snd_timer snd_seq_device snd psmouse i2c_i801 pcspkr serio_raw rng_core soundcore snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi uhci_hcd ricoh_mmc sdhci_pci sdhci ata_piix ide_pci_generic mmc_core led_class ehci_hcd usbcore r8169 mii
kernel: [ 1117.962910] Pid: 4, comm: ksoftirqd/0 Not tainted 2.6.31-rc2-pnv-git1-00254-ga4e2f0a-dirty #2
kernel: [ 1117.962918] Call Trace:
kernel: [ 1117.962937] [<c1035f55>] __schedule_bug+0x95/0xa0
kernel: [ 1117.962950] [<c14394f2>] schedule+0x962/0xb60
kernel: [ 1117.962963] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1117.962978] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1117.962991] [<c143a3df>] __mutex_lock_common+0x17f/0x450
kernel: [ 1117.963002] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1117.963013] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1117.963025] [<c143a754>] mutex_lock_nested+0x24/0x40
kernel: [ 1117.963035] [<c1300355>] ? tty_throttle+0x25/0x70
kernel: [ 1117.963046] [<c1300355>] tty_throttle+0x25/0x70
kernel: [ 1117.963057] [<c12fecd7>] n_tty_receive_buf+0x3a7/0x11c0
kernel: [ 1117.963069] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1117.963081] [<c1033273>] ? __wake_up+0x53/0x70
kernel: [ 1117.963092] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1117.963103] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1117.963115] [<c107b015>] ? print_lock_contention_bug+0x25/0x100
kernel: [ 1117.963127] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1117.963138] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1117.963149] [<c13012b5>] ? tty_ldisc_try+0x25/0x60
kernel: [ 1117.963161] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1117.963172] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1117.963184] [<c13012d2>] ? tty_ldisc_try+0x42/0x60
kernel: [ 1117.963195] [<c13038dd>] pty_write+0x7d/0x90
kernel: [ 1117.963210] [<f80b3c8a>] ppp_async_push+0x3da/0x4d0 [ppp_async]
kernel: [ 1117.963263] [<f80b3dc8>] ppp_async_send+0x48/0x70 [ppp_async]
kernel: [ 1117.963285] [<f8097086>] ppp_push+0x176/0x5f0 [ppp_generic]
kernel: [ 1117.963304] [<c1397436>] ? skb_dequeue+0x26/0x80
kernel: [ 1117.963319] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1117.963335] [<c143c5f7>] ? _spin_unlock_irqrestore+0x47/0x90
kernel: [ 1117.963350] [<c1397463>] ? skb_dequeue+0x53/0x80
kernel: [ 1117.963369] [<f8097bcd>] ppp_xmit_process+0x3dd/0x570 [ppp_generic]
kernel: [ 1117.963385] [<c107c709>] ? trace_hardirqs_on+0x19/0x40
kernel: [ 1117.963403] [<c1397311>] ? skb_queue_tail+0x41/0x60
kernel: [ 1117.963420] [<f8097ec7>] ppp_start_xmit+0x167/0x1b0 [ppp_generic]
kernel: [ 1117.963440] [<c13b8522>] ? __qdisc_run+0x192/0x260
kernel: [ 1117.963459] [<c13a466c>] dev_hard_start_xmit+0x21c/0x3c0
kernel: [ 1117.963473] [<c143bdae>] ? _spin_lock+0x6e/0x90
kernel: [ 1117.963489] [<c13b853c>] __qdisc_run+0x1ac/0x260
kernel: [ 1117.963502] [<c13a38e7>] net_tx_action+0xf7/0x170
kernel: [ 1117.963521] [<c104f9ea>] __do_softirq+0xba/0x240
kernel: [ 1117.963536] [<c1272008>] ? trace_hardirqs_on_thunk+0xc/0x10
kernel: [ 1117.963552] [<c104fbe5>] do_softirq+0x75/0x90
kernel: [ 1117.963569] [<c10502e2>] ksoftirqd+0x82/0x1a0
kernel: [ 1117.963585] [<c1050260>] ? ksoftirqd+0x0/0x1a0
kernel: [ 1117.963602] [<c10646e4>] kthread+0x84/0x90
kernel: [ 1117.963624] [<c1064660>] ? kthread+0x0/0x90
kernel: [ 1117.963641] [<c1004217>] kernel_thread_helper+0x7/0x70

Sergey

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