Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757327AbZF3V6T (ORCPT ); Tue, 30 Jun 2009 17:58:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753894AbZF3V6I (ORCPT ); Tue, 30 Jun 2009 17:58:08 -0400 Received: from mail.open.by ([193.232.92.17]:53264 "EHLO post.open.by" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753235AbZF3V6F (ORCPT ); Tue, 30 Jun 2009 17:58:05 -0400 X-SpamTest-Envelope-From: sergey.senozhatsky@mail.by X-SpamTest-Group-ID: 00000000 X-SpamTest-Info: Profiles 8889 [Jun 30 2009] X-SpamTest-Info: helo_type=3 X-SpamTest-Info: {HEADERS: header Content-Type found without required header Content-Transfer-Encoding} X-SpamTest-Info: {relay has no DNS name} X-SpamTest-Method: probable X-SpamTest-Rate: 65 X-SpamTest-SPF: softfail X-SpamTest-Status: Probable Spam X-SpamTest-Status-Extended: probable_spam X-SpamTest-Version: SMTP-Filter Version 3.0.0 [0284], KAS30/Release Date: Wed, 1 Jul 2009 00:59:49 +0300 From: Sergey Senozhatsky To: Arjan van de Ven Cc: Alan Cox , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List Subject: Re: [Bug #13522] BUG: scheduling while atomic Message-ID: <20090630215949.GA3194@localdomain.by> References: <6JJ2m5kyucK.A.D2D.VJASKB@chimera> <20090629154119.2c61f234@lxorguk.ukuu.org.uk> <20090629162853.GB3461@localdomain.by> <20090629221509.1d307184@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090629221509.1d307184@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 19506 Lines: 316 Hello, rc1-git6. Hope this will help. dmesg | ./scripts/markup_oops.pl *__get_cpu_var(tasklet_vec).tail = t; __get_cpu_var(tasklet_vec).tail = &(t->next); raise_softirq_irqoff(TASKLET_SOFTIRQ); local_irq_restore(flags); c104c4fb: f7 c6 00 02 00 00 test $0x200,%esi c104c501: 74 1d je c104c520 <__tasklet_schedule+0x80> c104c503: e8 78 b5 02 00 call c1077a80 return flags; } static inline void native_restore_fl(unsigned long flags) { asm volatile("push %0 ; popf" c104c508: 56 push %esi | %esi => 200246 c104c509: 9d popf } *c104c50a: 8b 45 f4 mov -0xc(%ebp),%eax | %eax = 0 <--- faulting instruction c104c50d: 65 33 05 14 00 00 00 xor %gs:0x14,%eax c104c514: 75 13 jne c104c529 <__tasklet_schedule+0x89> c104c516: 83 c4 04 add $0x4,%esp c104c519: 5b pop %ebx c104c51a: 5e pop %esi c104c51b: c9 leave c104c51c: c3 ret c104c51d: 8d 76 00 lea 0x0(%esi),%esi c104c520: 56 push %esi c104c521: 9d popf local_irq_save(flags); t->next = NULL; *__get_cpu_var(tasklet_vec).tail = t; __get_cpu_var(tasklet_vec).tail = &(t->next); raise_softirq_irqoff(TASKLET_SOFTIRQ); local_irq_restore(flags); c104c522: e8 29 7d 02 00 call c1074250 c104c527: eb e1 jmp c104c50a <__tasklet_schedule+0x6a> } c104c529: e8 c2 85 ff ff call c1044af0 <__stack_chk_fail> c104c52e: 66 90 xchg %ax,%ax c104c530 : if (!in_interrupt()) syslog: kernel: [47080.294012] BUG: scheduling while atomic: pptpgw/6053/0x10000400 kernel: [47080.294022] INFO: lockdep is turned off. kernel: [47080.294028] 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 pcspkr psmouse snd i2c_i801 rng_core serio_raw soundcore snd_page_alloc asus_laptop evdev sg usbhid sr_mod hid cdrom sd_mod ata_generic pata_acpi ata_piix ricoh_mmc sdhci_pci sdhci ide_pci_generic uhci_hcd mmc_core led_class ehci_hcd usbcore r8169 mii kernel: [47080.294165] kernel: [47080.294175] Pid: 6053, comm: pptpgw Not tainted (2.6.31-rc1-dbgnv-git6 #1) F3JC kernel: [47080.294184] EIP: 0060:[] EFLAGS: 00200246 CPU: 0 kernel: [47080.294198] EIP is at __tasklet_schedule+0x6a/0x90 kernel: [47080.294205] EAX: 00000000 EBX: c31cf17c ECX: 00000000 EDX: 00000000 kernel: [47080.294213] ESI: 00200246 EDI: 00000fff EBP: c3271e60 ESP: c3271e54 kernel: [47080.294220] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 kernel: [47080.294228] CR0: 8005003b CR2: b7462000 CR3: 29de4000 CR4: 000006d0 kernel: [47080.294235] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 kernel: [47080.294242] DR6: ffff0ff0 DR7: 00000400 kernel: [47080.294248] Call Trace: kernel: [47080.294263] [] ppp_asynctty_wakeup+0x6b/0x80 [ppp_async] kernel: [47080.294276] [] tty_wakeup+0x72/0x90 kernel: [47080.294287] [] pty_unthrottle+0x23/0x50 kernel: [47080.294296] [] tty_unthrottle+0x42/0x70 kernel: [47080.294306] [] n_tty_read+0x48f/0x730 kernel: [47080.294320] [] ? default_wake_function+0x0/0x40 kernel: [47080.294332] [] tty_read+0xa0/0xe0 kernel: [47080.294341] [] ? n_tty_read+0x0/0x730 kernel: [47080.294352] [] vfs_read+0xbb/0x1c0 kernel: [47080.294362] [] ? tty_read+0x0/0xe0 kernel: [47080.294372] [] sys_read+0x58/0xa0 kernel: [47080.294383] [] sysenter_do_call+0x12/0x32 kernel: [47080.294401] BUG: scheduling while atomic: pptpgw/6053/0x00000400 kernel: [47080.294408] INFO: lockdep is turned off. kernel: [47080.294413] 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 pcspkr psmouse snd i2c_i801 rng_core serio_raw soundcore snd_page_alloc asus_laptop evdev sg usbhid sr_mod hid cdrom sd_mod ata_generic pata_acpi ata_piix ricoh_mmc sdhci_pci sdhci ide_pci_generic uhci_hcd mmc_core led_class ehci_hcd usbcore r8169 mii kernel: [47080.294548] kernel: [47080.294555] Pid: 6053, comm: pptpgw Not tainted (2.6.31-rc1-dbgnv-git6 #1) F3JC kernel: [47080.294564] EIP: 0060:[] EFLAGS: 00200246 CPU: 0 kernel: [47080.294572] EIP is at __tasklet_schedule+0x6a/0x90 kernel: [47080.294579] EAX: 00000000 EBX: c31cf17c ECX: 00000000 EDX: 00000000 kernel: [47080.294586] ESI: 00200246 EDI: 00000fff EBP: c3271e60 ESP: c3271e54 kernel: [47080.294593] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 kernel: [47080.294600] CR0: 8005003b CR2: b7462000 CR3: 29de4000 CR4: 000006d0 kernel: [47080.294607] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 kernel: [47080.294614] DR6: ffff0ff0 DR7: 00000400 kernel: [47080.294619] Call Trace: kernel: [47080.294631] [] ppp_asynctty_wakeup+0x6b/0x80 [ppp_async] kernel: [47080.294641] [] tty_wakeup+0x72/0x90 kernel: [47080.294651] [] pty_unthrottle+0x23/0x50 kernel: [47080.294661] [] tty_unthrottle+0x42/0x70 kernel: [47080.294670] [] n_tty_read+0x48f/0x730 kernel: [47080.294683] [] ? default_wake_function+0x0/0x40 kernel: [47080.294695] [] tty_read+0xa0/0xe0 kernel: [47080.294704] [] ? n_tty_read+0x0/0x730 kernel: [47080.294714] [] vfs_read+0xbb/0x1c0 kernel: [47080.294724] [] ? tty_read+0x0/0xe0 kernel: [47080.294733] [] sys_read+0x58/0xa0 kernel: [47080.294744] [] sysenter_do_call+0x12/0x32 pptp[6064]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received. kernel: [47113.649464] INFO: RCU detected CPU 1 stall (t=14044096/3000 jiffies) kernel: [47113.649464] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47113.649464] Call Trace: kernel: [47113.649464] [] ? printk+0x23/0x36 kernel: [47113.649464] [] __rcu_pending+0x140/0x210 kernel: [47113.649464] [] rcu_pending+0x2a/0x70 kernel: [47113.649464] [] update_process_times+0x3f/0x80 kernel: [47113.649464] [] tick_sched_timer+0x6f/0xf0 kernel: [47113.649464] [] __run_hrtimer+0x56/0xe0 kernel: [47113.649464] [] ? tick_sched_timer+0x0/0xf0 kernel: [47113.649464] [] ? tick_sched_timer+0x0/0xf0 kernel: [47113.649464] [] hrtimer_interrupt+0x145/0x270 kernel: [47113.649464] [] ? tick_program_event+0x36/0x60 kernel: [47113.649464] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47113.649464] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47113.649464] [] apic_timer_interrupt+0x36/0x3c kernel: [47113.649464] [] ? delay_tsc+0x26/0x80 kernel: [47113.649464] [] __delay+0x18/0x30 kernel: [47113.649464] [] _raw_spin_lock+0xf6/0x170 kernel: [47113.649464] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47113.649464] [] _spin_lock_bh+0x62/0x90 kernel: [47113.649464] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47113.649464] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47113.649464] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47113.649464] [] vfs_write+0xbe/0x1c0 kernel: [47113.649464] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47113.649464] [] sys_write+0x58/0xa0 kernel: [47113.649464] [] sysenter_do_call+0x12/0x32 /USR/SBIN/CRON[6450]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1) kernel: [47143.649461] INFO: RCU detected CPU 1 stall (t=14053096/12000 jiffies) kernel: [47143.649461] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47143.649461] Call Trace: kernel: [47143.649461] [] ? printk+0x23/0x36 kernel: [47143.649461] [] __rcu_pending+0x140/0x210 kernel: [47143.649461] [] rcu_pending+0x2a/0x70 kernel: [47143.649461] [] update_process_times+0x3f/0x80 kernel: [47143.649461] [] tick_sched_timer+0x6f/0xf0 kernel: [47143.649461] [] __run_hrtimer+0x56/0xe0 kernel: [47143.649461] [] ? tick_sched_timer+0x0/0xf0 kernel: [47143.649461] [] ? tick_sched_timer+0x0/0xf0 kernel: [47143.649461] [] hrtimer_interrupt+0x145/0x270 kernel: [47143.649461] [] ? tick_program_event+0x36/0x60 kernel: [47143.649461] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47143.649461] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47143.649461] [] apic_timer_interrupt+0x36/0x3c kernel: [47143.649461] [] ? delay_tsc+0x45/0x80 kernel: [47143.649461] [] __delay+0x18/0x30 kernel: [47143.649461] [] _raw_spin_lock+0xf6/0x170 kernel: [47143.649461] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47143.649461] [] _spin_lock_bh+0x62/0x90 kernel: [47143.649461] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47143.649461] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47143.649461] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47143.649461] [] vfs_write+0xbe/0x1c0 kernel: [47143.649461] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47143.649461] [] sys_write+0x58/0xa0 kernel: [47143.649461] [] sysenter_do_call+0x12/0x32 pptp[6064]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received. pptp[6064]: anon log[logecho:pptp_ctrl.c:679]: no more Echo Reply/Request packets will be reported. kernel: [47173.649458] INFO: RCU detected CPU 1 stall (t=14062096/21000 jiffies) kernel: [47173.649458] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47173.649458] Call Trace: kernel: [47173.649458] [] ? printk+0x23/0x36 kernel: [47173.649458] [] __rcu_pending+0x140/0x210 kernel: [47173.649458] [] rcu_pending+0x2a/0x70 kernel: [47173.649458] [] update_process_times+0x3f/0x80 kernel: [47173.649458] [] tick_sched_timer+0x6f/0xf0 kernel: [47173.649458] [] __run_hrtimer+0x56/0xe0 kernel: [47173.649458] [] ? tick_sched_timer+0x0/0xf0 kernel: [47173.649458] [] ? tick_sched_timer+0x0/0xf0 kernel: [47173.649458] [] hrtimer_interrupt+0x145/0x270 kernel: [47173.649458] [] ? tick_program_event+0x36/0x60 kernel: [47173.649458] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47173.649458] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47173.649458] [] apic_timer_interrupt+0x36/0x3c kernel: [47173.649458] [] ? delay_tsc+0x45/0x80 kernel: [47173.649458] [] __delay+0x18/0x30 kernel: [47173.649458] [] _raw_spin_lock+0xf6/0x170 kernel: [47173.649458] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47173.649458] [] _spin_lock_bh+0x62/0x90 kernel: [47173.649458] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47173.649458] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47173.649458] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47173.649458] [] vfs_write+0xbe/0x1c0 kernel: [47173.649458] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47173.649458] [] sys_write+0x58/0xa0 kernel: [47173.649458] [] sysenter_do_call+0x12/0x32 kernel: [47203.649454] INFO: RCU detected CPU 1 stall (t=14071096/30000 jiffies) kernel: [47203.649456] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47203.649456] Call Trace: kernel: [47203.649456] [] ? printk+0x23/0x36 kernel: [47203.649456] [] __rcu_pending+0x140/0x210 kernel: [47203.649456] [] rcu_pending+0x2a/0x70 kernel: [47203.649456] [] update_process_times+0x3f/0x80 kernel: [47203.649456] [] tick_sched_timer+0x6f/0xf0 kernel: [47203.649456] [] __run_hrtimer+0x56/0xe0 kernel: [47203.649456] [] ? tick_sched_timer+0x0/0xf0 kernel: [47203.649456] [] ? tick_sched_timer+0x0/0xf0 kernel: [47203.649456] [] hrtimer_interrupt+0x145/0x270 kernel: [47203.649456] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47203.649456] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47203.649456] [] apic_timer_interrupt+0x36/0x3c kernel: [47203.649456] [] ? delay_tsc+0x45/0x80 kernel: [47203.649456] [] __delay+0x18/0x30 kernel: [47203.649456] [] _raw_spin_lock+0xf6/0x170 kernel: [47203.649456] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47203.649456] [] _spin_lock_bh+0x62/0x90 kernel: [47203.649456] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47203.649456] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47203.649456] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47203.649456] [] vfs_write+0xbe/0x1c0 kernel: [47203.649456] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47203.649456] [] sys_write+0x58/0xa0 kernel: [47203.649456] [] sysenter_do_call+0x12/0x32 kernel: [47233.649451] INFO: RCU detected CPU 1 stall (t=14080096/39000 jiffies) kernel: [47233.649452] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47233.649452] Call Trace: kernel: [47233.649452] [] ? printk+0x23/0x36 kernel: [47233.649452] [] __rcu_pending+0x140/0x210 kernel: [47233.649452] [] rcu_pending+0x2a/0x70 kernel: [47233.649452] [] update_process_times+0x3f/0x80 kernel: [47233.649452] [] tick_sched_timer+0x6f/0xf0 kernel: [47233.649452] [] __run_hrtimer+0x56/0xe0 kernel: [47233.649452] [] ? tick_sched_timer+0x0/0xf0 kernel: [47233.649452] [] ? tick_sched_timer+0x0/0xf0 kernel: [47233.649452] [] hrtimer_interrupt+0x145/0x270 kernel: [47233.649452] [] ? tick_program_event+0x36/0x60 kernel: [47233.649452] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47233.649452] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47233.649452] [] apic_timer_interrupt+0x36/0x3c kernel: [47233.649452] [] ? delay_tsc+0x43/0x80 kernel: [47233.649452] [] __delay+0x18/0x30 kernel: [47233.649452] [] _raw_spin_lock+0xf6/0x170 kernel: [47233.649452] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47233.649452] [] _spin_lock_bh+0x62/0x90 kernel: [47233.649452] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47233.649452] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47233.649452] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47233.649452] [] vfs_write+0xbe/0x1c0 kernel: [47233.649452] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47233.649452] [] sys_write+0x58/0xa0 kernel: [47233.649452] [] sysenter_do_call+0x12/0x32 kernel: [47263.649448] INFO: RCU detected CPU 1 stall (t=14089096/48000 jiffies) kernel: [47263.649449] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47263.649449] Call Trace: kernel: [47263.649449] [] ? printk+0x23/0x36 kernel: [47263.649449] [] __rcu_pending+0x140/0x210 kernel: [47263.649449] [] rcu_pending+0x2a/0x70 kernel: [47263.649449] [] update_process_times+0x3f/0x80 kernel: [47263.649449] [] tick_sched_timer+0x6f/0xf0 kernel: [47263.649449] [] __run_hrtimer+0x56/0xe0 kernel: [47263.649449] [] ? tick_sched_timer+0x0/0xf0 kernel: [47263.649449] [] ? tick_sched_timer+0x0/0xf0 kernel: [47263.649449] [] hrtimer_interrupt+0x145/0x270 kernel: [47263.649449] [] ? tick_program_event+0x36/0x60 kernel: [47263.649449] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47263.649449] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47263.649449] [] apic_timer_interrupt+0x36/0x3c kernel: [47263.649449] [] ? delay_tsc+0x45/0x80 kernel: [47263.649449] [] __delay+0x18/0x30 kernel: [47263.649449] [] _raw_spin_lock+0xf6/0x170 kernel: [47263.649449] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47263.649449] [] _spin_lock_bh+0x62/0x90 kernel: [47263.649449] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47263.649449] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47263.649449] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47263.649449] [] vfs_write+0xbe/0x1c0 kernel: [47263.649449] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47263.649449] [] sys_write+0x58/0xa0 kernel: [47263.649449] [] sysenter_do_call+0x12/0x32 kernel: [47293.649445] INFO: RCU detected CPU 1 stall (t=14098096/57000 jiffies) kernel: [47293.649446] Pid: 6052, comm: pppd Not tainted 2.6.31-rc1-dbgnv-git6 #1 kernel: [47293.649446] Call Trace: kernel: [47293.649446] [] ? printk+0x23/0x36 kernel: [47293.649446] [] __rcu_pending+0x140/0x210 kernel: [47293.649446] [] rcu_pending+0x2a/0x70 kernel: [47293.649446] [] update_process_times+0x3f/0x80 kernel: [47293.649446] [] tick_sched_timer+0x6f/0xf0 kernel: [47293.649446] [] __run_hrtimer+0x56/0xe0 kernel: [47293.649446] [] ? tick_sched_timer+0x0/0xf0 kernel: [47293.649446] [] ? tick_sched_timer+0x0/0xf0 kernel: [47293.649446] [] hrtimer_interrupt+0x145/0x270 kernel: [47293.649446] [] ? tick_program_event+0x36/0x60 kernel: [47293.649446] [] smp_apic_timer_interrupt+0x5c/0xb0 kernel: [47293.649446] [] ? trace_hardirqs_off_thunk+0xc/0x14 kernel: [47293.649446] [] apic_timer_interrupt+0x36/0x3c kernel: [47293.649446] [] ? delay_tsc+0x28/0x80 kernel: [47293.649446] [] __delay+0x18/0x30 kernel: [47293.649446] [] _raw_spin_lock+0xf6/0x170 kernel: [47293.649446] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47293.649446] [] _spin_lock_bh+0x62/0x90 kernel: [47293.649446] [] ? ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47293.649446] [] ppp_channel_push+0x24/0xd0 [ppp_generic] kernel: [47293.649446] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [47293.649446] [] vfs_write+0xbe/0x1c0 kernel: [47293.649446] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [47293.649446] [] sys_write+0x58/0xa0 kernel: [47293.649446] [] sysenter_do_call+0x12/0x32 Sergey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/