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Message-ID: <4AD71FA3.8080801@wpkg.org> Date: Thu, 15 Oct 2009 15:12:03 +0200 From: Tomasz Chmielewski <mangoo@...g.org> To: linux-kernel@...r.kernel.org Subject: 2.6.31.4: WARNING: at drivers/usb/serial/usb-serial.c:446 serial_unthrottle I see my minicom segfaulted for some reason (probably as I closed konsole window without exiting minicom first). And I see this warning in dmesg - anything useful? [12966.137519] minicom[16738]: segfault at 624fff ip 00000000004174d9 sp 00007ffff5e81b30 error 4 in minicom[400000+26000] [12966.512773] ------------[ cut here ]------------ [12966.512785] WARNING: at drivers/usb/serial/usb-serial.c:446 serial_unthrottle+0xab/0xb0 [usbserial]() [12966.512787] Hardware name: [12966.512788] Modules linked in: bridge stp tun af_packet radeon drm ipv6 coretemp binfmt_misc loop dm_mod cpufreq_ondemand cpufreq_conservative cpufreq_powersave acpi_cpufreq freq_table kvm_intel kvm snd_hda_codec_atihdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_seq_dummy snd_hwdep snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device e1000e pl2303 snd_pcm_oss i2c_i801 snd_pcm usbserial serio_raw pcspkr snd_timer sr_mod sg joydev i2c_core wmi snd_mixer_oss evdev thermal processor button snd iTCO_wdt iTCO_vendor_support soundcore snd_page_alloc ata_piix ahci libata sd_mod scsi_mod crc_t10dif raid1 ext4 jbd2 crc16 uhci_hcd ohci_hcd ehci_hcd usbhid hid usbcore [last unloaded: scsi_wait_scan] [12966.512818] Pid: 16738, comm: minicom Not tainted 2.6.31.4-server-0.rc2.1mnb #1 [12966.512819] Call Trace: [12966.512825] [<ffffffff8106cc95>] warn_slowpath_common+0x85/0xd0 [12966.512828] [<ffffffff8106cd07>] warn_slowpath_null+0x27/0x50 [12966.512832] [<ffffffffa02444bb>] serial_unthrottle+0xab/0xb0 [usbserial] [12966.512835] [<ffffffff812d3ce4>] tty_unthrottle+0x54/0x80 [12966.512838] [<ffffffff812d2024>] reset_buffer_flags+0xe4/0x120 [12966.512841] [<ffffffff812d208c>] n_tty_flush_buffer+0x2c/0xb0 [12966.512843] [<ffffffff812d4f6d>] ? tty_ldisc_try+0x5d/0x80 [12966.512845] [<ffffffff812d5715>] tty_ldisc_flush+0x45/0x80 [12966.512847] [<ffffffff812d6d3a>] tty_port_close_end+0x3a/0x120 [12966.512851] [<ffffffffa0244a91>] serial_close+0xa1/0xe0 [usbserial] [12966.512854] [<ffffffff812ceb93>] tty_release_dev+0x163/0x600 [12966.512858] [<ffffffff81235f78>] ? _atomic_dec_and_lock+0x78/0xa0 [12966.512860] [<ffffffff81235f78>] ? _atomic_dec_and_lock+0x78/0xa0 [12966.512862] [<ffffffff812cf05d>] tty_release+0x2d/0x50 [12966.512866] [<ffffffff81151ace>] __fput+0xee/0x220 [12966.512868] [<ffffffff81151c2d>] fput+0x2d/0x50 [12966.512870] [<ffffffff8114d3cc>] filp_close+0x6c/0xb0 [12966.512873] [<ffffffff8106f52f>] put_files_struct+0x8f/0x110 [12966.512875] [<ffffffff8106f608>] exit_files+0x58/0x80 [12966.512877] [<ffffffff81070141>] do_exit+0x161/0x7d0 [12966.512880] [<ffffffff81081003>] ? __dequeue_signal+0xf3/0x220 [12966.512882] [<ffffffff81070810>] do_group_exit+0x60/0xe0 [12966.512884] [<ffffffff8108174c>] get_signal_to_deliver+0x1bc/0x3c0 [12966.512888] [<ffffffff8101268b>] do_notify_resume+0xeb/0x7f0 [12966.512890] [<ffffffff8123cb88>] ? rb_erase+0x1e8/0x350 [12966.512894] [<ffffffff81043226>] ? bad_area+0x26/0x50 [12966.512898] [<ffffffff81430799>] ? do_page_fault+0x379/0x3a0 [12966.512901] [<ffffffff81013e1c>] retint_signal+0x48/0x8c [12966.512903] ---[ end trace 9324d74be25813f7 ]--- -- Tomasz Chmielewski http://wpkg.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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