linux-kernel - Re: [Bug #13522] BUG: scheduling while atomic

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Date:	Tue, 30 Jun 2009 10:20:38 +0300
From:	Sergey Senozhatsky <sergey.senozhatsky@...l.by>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>
Subject: Re: [Bug #13522] BUG: scheduling while atomic

On (06/29/09 22:15), Arjan van de Ven wrote:
> > ...
> > Hello Alan, Rafael,
> > 
> > BUG is still here...
> 
> 
> can you enable CONFIG_DEBUG_INFO, and then run this through
> scripts/markup_oops.pl ? With a bit of luck it'll point to the exact
> code that's going wrong...
> 

Hello Arjan. Sure. I'll try.

btw, I've updated bug description:

kernel: [  984.626653] BUG: scheduling while atomic: pptpgw/3347/0x10000500
kernel: [  984.626661] 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 soundcore pcspkr psmouse rng_core serio_raw i2c_i801 snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi ricoh_mmc sdhci_pci uhci_hcd sdhci mmc_core led_class ehci_hcd r8169 mii ata_piix ide_pci_generic usbcore
kernel: [  984.626763] 
kernel: [  984.626771] Pid: 3347, comm: pptpgw Not tainted (2.6.31-rc1-dbgnv-git5 #2) F3JC                
kernel: [  984.626780] EIP: 0060:[<c103a1fc>] EFLAGS: 00200246 CPU: 0
kernel: [  984.626794] EIP is at finish_task_switch+0x4c/0xc0
kernel: [  984.626800] EAX: 00000000 EBX: c1eaa380 ECX: 00000001 EDX: c1407ee0
kernel: [  984.626807] ESI: f5c72200 EDI: f72fc070 EBP: e4f87f20 ESP: e4f87f0c
kernel: [  984.626813]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
kernel: [  984.626819] CR0: 8005003b CR2: b6f399ae CR3: 24f80000 CR4: 000006d0
kernel: [  984.626825] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
kernel: [  984.626831] DR6: ffff0ff0 DR7: 00000400
kernel: [  984.626836] Call Trace:
kernel: [  984.626848]  [<c13fcfef>] schedule+0x41f/0xb20
kernel: [  984.626859]  [<c10ecdb8>] ? sys_read+0x58/0xa0
kernel: [  984.626869]  [<c10033a2>] work_resched+0x5/0x1a
kernel: [ 1051.216759] BUG: scheduling while atomic: pptpgw/3347/0x10000500
kernel: [ 1051.216768] 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 soundcore pcspkr psmouse rng_core serio_raw i2c_i801 snd_page_alloc
asus_laptop evdev usbhid hid sg sr_mod cdrom sd_mod ata_generic pata_acpi ricoh_mmc sdhci_pci uhci_hcd sdhci mmc_core led_class ehci_hcd r8169 mii ata_piix ide_pci_generic usbcore
kernel: [ 1051.216869] 
kernel: [ 1051.216878] Pid: 3347, comm: pptpgw Not tainted (2.6.31-rc1-dbgnv-git5 #2) F3JC                
kernel: [ 1051.216886] EIP: 0060:[<c1049883>] EFLAGS: 00200246 CPU: 0
kernel: [ 1051.216901] EIP is at __tasklet_schedule+0x53/0x80
kernel: [ 1051.216907] EAX: 00000000 EBX: 00200246 ECX: 00000000 EDX: 00000000
kernel: [ 1051.216914] ESI: 00000000 EDI: e556dd10 EBP: e4f87e70 ESP: e4f87e68
kernel: [ 1051.216921]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
kernel: [ 1051.216927] CR0: 8005003b CR2: b7085000 CR3: 24f80000 CR4: 000006d0
kernel: [ 1051.216934] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
kernel: [ 1051.216939] DR6: ffff0ff0 DR7: 00000400
kernel: [ 1051.216945] Call Trace:
kernel: [ 1051.216960]  [<f80b376c>] ppp_asynctty_receive+0x3dc/0x510 [ppp_async]
kernel: [ 1051.216975]  [<c12d161d>] pty_write+0x7d/0x90
kernel: [ 1051.216985]  [<c12cbd13>] n_tty_write+0x303/0x410
kernel: [ 1051.216996]  [<c103d8f0>] ? default_wake_function+0x0/0x40
kernel: [ 1051.217005]  [<c12c8ef3>] tty_write+0x173/0x250
kernel: [ 1051.217015]  [<c10ebcaf>] ? rw_verify_area+0x6f/0xf0
kernel: [ 1051.217025]  [<c12cba10>] ? n_tty_write+0x0/0x410
kernel: [ 1051.217034]  [<c10ec89e>] vfs_write+0xbe/0x1c0
kernel: [ 1051.217043]  [<c12c8d80>] ? tty_write+0x0/0x250
kernel: [ 1051.217052]  [<c10ecaa8>] sys_write+0x58/0xa0
kernel: [ 1051.217062]  [<c100324b>] sysenter_do_call+0x12/0x22


	Sergey
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