Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755657AbYK2A1y (ORCPT ); Fri, 28 Nov 2008 19:27:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753001AbYK2A1o (ORCPT ); Fri, 28 Nov 2008 19:27:44 -0500 Received: from ti-out-0910.google.com ([209.85.142.191]:3406 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750856AbYK2A1n (ORCPT ); Fri, 28 Nov 2008 19:27:43 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:reply-to:to:content-type:date:message-id:mime-version :x-mailer:content-transfer-encoding; b=Y677wsjZZ3UjLO7IRjCW6t1AxoXn5hD//KNqeAwVLIox6vO4/azumBUJJy6TaV2NGC ocVBzD9+vNyGhyhTSzaq8PNz0gb37UofaN/0VGhjGQc5t/TtnnIC0ymnG98b+5gSoggf Ye2fsNt8u9xuNPl0qCzdWclE2Lsk6JJ6Zv1kA= Subject: warning at usb-serial.c (2.6.27.7) From: satish Reply-To: eerpini@gmail.com To: LKML Content-Type: text/plain Date: Sat, 29 Nov 2008 05:57:11 +0530 Message-Id: <1227918431.2915.3.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3305 Lines: 74 I get the following error often when i use my ZTE AC8700 USB modem. It usually shows up when the pppd dies or when the modem is not able to connect because of some other problem , ...... is this any serious ?? WARNING: at drivers/usb/serial/usb-serial.c:324 serial_write_room +0x47/0x5b [usbserial]() Modules linked in: ppp_async crc_ccitt ppp_generic slhc fuse rfcomm l2cap ipt_REJECT nf_conntrack_ipv4 iptable_filter ip_tables ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables x_tables cpufreq_ondemand acpi_cpufreq dm_multipath i915 drm ipv6 snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq arc4 ecb snd_seq_device iwl3945 snd_pcm_oss sr_mod snd_mixer_oss cdrom mac80211 snd_pcm b44 ppdev pata_acpi firewire_ohci usb_storage ssb snd_timer ata_generic firewire_core serio_raw joydev snd_page_alloc iTCO_wdt parport_pc pcspkr ata_piix mii snd_hwdep option iTCO_vendor_support sg crc_itu_t parport snd video usbserial output hci_usb wmi battery cfg80211 soundcore ac button bluetooth ahci libata sd_mod scsi_mod sha256_generic cbc aes_i586 aes_generic dm_crypt crypto_blkcipher dm_snapshot dm_zero dm_mirror dm_log dm_mod ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode] Pid: 0, comm: swapper Tainted: G W 2.6.27.7 #1 [] ? printk+0xf/0x13 [] warn_on_slowpath+0x41/0x65 [] ? complete_signal+0x17a/0x18c [] ? __group_send_sig_info+0xa/0xc [] ? group_send_sig_info+0x53/0x5c [] ? send_sigio+0x134/0x190 [] ? usb_submit_urb+0x1e1/0x1fd [] ? option_write+0x11c/0x1a1 [option] [] serial_write_room+0x47/0x5b [usbserial] [] tty_write_room+0x18/0x1a [] opost+0x14/0x1bb [] n_tty_receive_buf+0xb2c/0xfe1 [] ? __enqueue_entity+0xe3/0xeb [] ? enqueue_entity+0x203/0x20b [] ? enqueue_task_fair+0x3b/0x3f [] ? enqueue_task+0x4c/0x58 [] ? resched_task+0x20/0x64 [] ? tty_ldisc_try+0x2d/0x33 [] flush_to_ldisc+0xf1/0x17c [] tty_flip_buffer_push+0x41/0x51 [] option_indat_callback+0x92/0xe8 [option] [] usb_hcd_giveback_urb+0x63/0x93 [] uhci_giveback_urb+0xe7/0x15e [uhci_hcd] [] uhci_scan_schedule+0x52e/0x767 [uhci_hcd] [] uhci_irq+0x110/0x125 [uhci_hcd] [] usb_hcd_irq+0x3a/0x7c [] handle_IRQ_event+0x2a/0x5a [] handle_fasteoi_irq+0x85/0xc0 [] ? handle_fasteoi_irq+0x0/0xc0 [] do_IRQ+0x9a/0xc4 [] common_interrupt+0x23/0x28 [] ? acpi_idle_enter_simple+0x1ba/0x231 [] ? menu_select+0x38/0x86 [] cpuidle_idle_call+0x62/0x92 [] cpu_idle+0xe8/0x10b [] rest_init+0x4e/0x50 ======================= ---[ end trace f067aa1dcef227bb ]--- if it would help , lsusb for my modem gives the following : Bus 004 Device 002: ID 05c6:6000 Qualcomm, Inc. Thanks Satish -- http://satish.playdrupal.com -- 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/