From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755789AbZG1WR6 (ORCPT ); Tue, 28 Jul 2009 18:17:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755323AbZG1WR5 (ORCPT ); Tue, 28 Jul 2009 18:17:57 -0400 Received: from mail.open.by ([193.232.92.17]:59958 "EHLO post.open.by" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755116AbZG1WR5 (ORCPT ); Tue, 28 Jul 2009 18:17:57 -0400 X-SpamTest-Envelope-From: sergey.senozhatsky@mail.by X-SpamTest-Group-ID: 00000000 X-SpamTest-Info: Profiles 9182 [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 01:18:42 +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: <20090728221842.GD3223@localdomain.by> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="T7mxYSe680VjQnyC" 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 --T7mxYSe680VjQnyC Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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] [] ? printk+0x23/0x36 kernel: [16662.855325] [] __schedule_bug+0x75/0x80 kernel: [16662.855336] [] schedule+0x5c8/0xb70 kernel: [16662.855347] [] ? sched_clock_cpu+0x16b/0x1f0 kernel: [16662.855357] [] ? _spin_lock+0x1b/0x50 kernel: [16662.855367] [] ? task_rq_lock+0x42/0x90 kernel: [16662.855380] [] ? ep_poll_callback+0xa1/0xe0 kernel: [16662.855391] [] __mutex_lock_slowpath+0xe4/0x190 kernel: [16662.855401] [] mutex_lock+0x25/0x50 kernel: [16662.855411] [] tty_throttle+0x23/0x70 kernel: [16662.855422] [] n_tty_receive_buf+0x407/0x1200 kernel: [16662.855432] [] ? tcp_v4_do_rcv+0x258/0x390 kernel: [16662.855443] [] ? __inet_lookup_established+0x2bc/0x2f0 kernel: [16662.855454] [] ? _spin_unlock+0x1e/0x60 kernel: [16662.855463] [] ? tcp_v4_rcv+0x56f/0x7a0 kernel: [16662.855475] [] ? move_native_irq+0x20/0x70 kernel: [16662.855485] [] ? _spin_unlock_irqrestore+0x20/0x60 kernel: [16662.855494] [] ? tty_ldisc_try+0x42/0x60 kernel: [16662.855504] [] flush_to_ldisc+0xf5/0x1f0 kernel: [16662.855514] [] tty_flip_buffer_push+0x7b/0x90 kernel: [16662.855524] [] pty_write+0x55/0x80 kernel: [16662.855537] [] ppp_async_push+0x397/0x480 [ppp_async] kernel: [16662.855551] [] ppp_async_process+0x85/0x98 [ppp_async] kernel: [16662.855561] [] tasklet_action+0xe3/0xf0 kernel: [16662.855570] [] __do_softirq+0xa7/0x210 kernel: [16662.855580] [] do_softirq+0x4d/0x60 kernel: [16662.855589] [] ksoftirqd+0x82/0x1a0 kernel: [16662.855598] [] ? ksoftirqd+0x0/0x1a0 kernel: [16662.855608] [] kthread+0x84/0x90 kernel: [16662.855618] [] ? kthread+0x0/0x90 kernel: [16662.855629] [] kernel_thread_helper+0x7/0x18 commit 26a2e20f4a966bebc312836aeb4423fbfd4e33e2 commit 38db89799bdf11625a831c5af33938dcb11908b6 Sergey --T7mxYSe680VjQnyC 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) iJwEAQECAAYFAkpveUIACgkQfKHnntdSXjQqAQP/bbCYBpmdUOpQ4pBUMG4wAtM4 KV3m2mJs2t/4Whl4CMAKzRMchTMHeFN85O+YQKk5++19zNBKG0Z4mV7KfB+68NOv JY+CuvPBc/J6yk+hsqZKceujSwU+KbyjvDLHFlKjz8moQB7VPx8LkwckdD+FN+ad E9swxGPAKHW6DzrqWqM= =kkSQ -----END PGP SIGNATURE----- --T7mxYSe680VjQnyC--