Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752542AbZG2IZu (ORCPT ); Wed, 29 Jul 2009 04:25:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751980AbZG2IZt (ORCPT ); Wed, 29 Jul 2009 04:25:49 -0400 Received: from mail.open.by ([193.232.92.17]:60597 "EHLO post.open.by" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750925AbZG2IZr (ORCPT ); Wed, 29 Jul 2009 04:25:47 -0400 X-SpamTest-Envelope-From: sergey.senozhatsky@mail.by X-SpamTest-Group-ID: 00000000 X-SpamTest-Info: Profiles 9186 [Jul 29 2009] X-SpamTest-Info: {relay has no DNS name} X-SpamTest-Method: none X-SpamTest-Rate: 55 X-SpamTest-SPF: softfail X-SpamTest-Status: Not detected X-SpamTest-Status-Extended: not_detected X-SpamTest-Version: SMTP-Filter Version 3.0.0 [0284], KAS30/Release Date: Wed, 29 Jul 2009 11:28:26 +0300 From: Sergey Senozhatsky To: James Morris Cc: Miloslav Trmac , Andrew Morton , linux-kernel@vger.kernel.org Subject: BUG: scheduling while atomic reintroduced Message-ID: <20090729082826.GA3208@localdomain.by> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J2SCkAp4GZ/dPZZf" Content-Disposition: inline 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: 5881 Lines: 126 --J2SCkAp4GZ/dPZZf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello, who is tty maintainer at the moment? kernel: [30720.827764] BUG: soft lockup - CPU#1 stuck for 61s! [pppd:3132] kernel: [30720.827766] Modules linked in: ppp_async crc_ccitt ppp_generic s= lhc 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_devic= e psmouse snd i2c_i801 serio_raw rng_core pcspkr soundcore snd_page_alloc a= sus_laptop evdev usbhid hid sg sd_mod sr_mod cdrom ata_generic pata_acpi ata_piix sdhci_pci ricoh_mmc i= de_pci_generic uhci_hcd sdhci mmc_core led_class ehci_hcd usbcore r8169 mii kernel: [30720.827766] irq event stamp: 17186 kernel: [30720.827766] hardirqs last enabled at (17185): [] _spi= n_unlock_irqrestore+0x75/0x90 kernel: [30720.827766] hardirqs last disabled at (17186): [] _spi= n_lock_irq+0x1b/0x90 kernel: [30720.827766] softirqs last enabled at (17058): [] ppp_= channel_push+0xab/0xd0 [ppp_generic] kernel: [30720.827766] softirqs last disabled at (17052): [] _rea= d_lock_bh+0x1a/0x90 kernel: [30720.827766]=20 kernel: [30720.827766] Pid: 3132, comm: pppd Not tainted (2.6.31-rc4-dbg-gi= t2 #1) F3JC =20 kernel: [30720.827766] EIP: 0060:[] EFLAGS: 00000202 CPU: 1 kernel: [30720.827766] EIP is at sub_preempt_count+0x80/0xb0 kernel: [30720.827766] EAX: 00000001 EBX: cdd677f4 ECX: 00000101 EDX: c27d8= 000 kernel: [30720.827766] ESI: cdd677ac EDI: 00000001 EBP: c27d9e98 ESP: c27d9= e94 kernel: [30720.827766] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 kernel: [30720.827766] CR0: 8005003b CR2: b73a5000 CR3: 0275a000 CR4: 00000= 6d0 kernel: [30720.827766] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000= 000 kernel: [30720.827766] DR6: ffff0ff0 DR7: 00000400 kernel: [30720.827766] Call Trace: kernel: [30720.827766] [] delay_tsc+0x7f/0xc0 kernel: [30720.827766] [] __delay+0x18/0x30 kernel: [30720.827766] [] _raw_spin_lock+0xf0/0x170 kernel: [30720.827766] [] _spin_lock_bh+0x6c/0x90 kernel: [30720.827766] [] ? ppp_channel_push+0x24/0xd0 [ppp_gene= ric] kernel: [30720.827766] [] ppp_channel_push+0x24/0xd0 [ppp_generi= c] kernel: [30720.827766] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [30720.827766] [] vfs_write+0xba/0x1b0 kernel: [30720.827766] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [30720.827766] [] sys_write+0x53/0xa0 kernel: [30720.827766] [] sysenter_do_call+0x12/0x32 kernel: [30786.327758] BUG: soft lockup - CPU#1 stuck for 61s! [pppd:3132] kernel: [30786.327760] Modules linked in: ppp_async crc_ccitt ppp_generic s= lhc 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_devic= e psmouse snd i2c_i801 serio_raw rng_core pcspkr soundcore snd_page_alloc a= sus_laptop evdev usbhid hid sg sd_mod sr_mod cdrom ata_generic pata_acpi ata_piix sdhci_pci ricoh_mmc i= de_pci_generic uhci_hcd sdhci mmc_core led_class ehci_hcd usbcore r8169 mii kernel: [30786.327760] irq event stamp: 17186 kernel: [30786.327760] hardirqs last enabled at (17185): [] _spi= n_unlock_irqrestore+0x75/0x90 kernel: [30786.327760] hardirqs last disabled at (17186): [] _spi= n_lock_irq+0x1b/0x90 kernel: [30786.327760] softirqs last enabled at (17058): [] ppp_= channel_push+0xab/0xd0 [ppp_generic] kernel: [30786.327760] softirqs last disabled at (17052): [] _rea= d_lock_bh+0x1a/0x90 kernel: [30786.327760]=20 kernel: [30786.327760] Pid: 3132, comm: pppd Not tainted (2.6.31-rc4-dbg-gi= t2 #1) F3JC =20 kernel: [30786.327760] EIP: 0060:[] EFLAGS: 00000282 CPU: 1 kernel: [30786.327760] EIP is at delay_tsc+0x2b/0xc0 kernel: [30786.327760] EAX: 00000001 EBX: c24d46f0 ECX: 00000001 EDX: 00000= 000 kernel: [30786.327760] ESI: 324bdcc1 EDI: 00000001 EBP: c27d9eb4 ESP: c27d9= ea0 kernel: [30786.327760] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 kernel: [30786.327760] CR0: 8005003b CR2: b73a5000 CR3: 0275a000 CR4: 00000= 6d0 kernel: [30786.327760] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000= 000 kernel: [30786.327760] DR6: ffff0ff0 DR7: 00000400 kernel: [30786.327760] Call Trace: kernel: [30786.327760] [] __delay+0x18/0x30 kernel: [30786.327760] [] _raw_spin_lock+0xf0/0x170 kernel: [30786.327760] [] _spin_lock_bh+0x6c/0x90 kernel: [30786.327760] [] ? ppp_channel_push+0x24/0xd0 [ppp_gene= ric] kernel: [30786.327760] [] ppp_channel_push+0x24/0xd0 [ppp_generi= c] kernel: [30786.327760] [] ppp_write+0xd7/0xe0 [ppp_generic] kernel: [30786.327760] [] vfs_write+0xba/0x1b0 kernel: [30786.327760] [] ? ppp_write+0x0/0xe0 [ppp_generic] kernel: [30786.327760] [] sys_write+0x53/0xa0 kernel: [30786.327760] [] sysenter_do_call+0x12/0x32 Sergey --J2SCkAp4GZ/dPZZf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iJwEAQECAAYFAkpwCCoACgkQfKHnntdSXjR4yAP/ZCfogLICJEswoHKYxjgynR3l 6Dj1qqYOXO/aZOTv7ZpI3RiZJCtRIYQZMujsqnPF3VkzKCP99q9+NU6LbxXmdl/6 UMe+4c33oce17DjyRhF0xdfhM+zKTx9HKmMzRhJbNBcOn4EYUHAv28fyxdRhADyX VXEmLf2NbK+NKqkpbrw= =SheH -----END PGP SIGNATURE----- --J2SCkAp4GZ/dPZZf-- -- 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/