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Date: Mon, 22 May 2006 05:19:36 -0700 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [Bugme-new] [Bug 6596] New: kernel bug at unloading pl2303 http://bugzilla.kernel.org/show_bug.cgi?id=6596 Summary: kernel bug at unloading pl2303 Kernel Version: 2.6.16 Status: NEW Severity: blocking Owner: [EMAIL PROTECTED] Submitter: [EMAIL PROTECTED] Most recent kernel where this bug did not occur: Distribution: Kanotix Hardware Environment: Thinkpad X31 Software Environment: Gnu/linux Unstable Problem Description: Attaching a serial-to-usb converter (pl2303) automatically loads the correct drivers. May 22 13:47:16 LaptopMB kernel: pl2303 1-1.2.1.2:1.0: pl2303 converter detected May 22 13:47:16 LaptopMB kernel: usb 1-1.2.1.2: pl2303 converter now attached to ttyUSB1 May 22 13:47:16 LaptopMB kernel: usbcore: registered new driver pl2303 May 22 13:47:16 LaptopMB kernel: drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver However, the driver gives an error and does not work with the device. Syslog says with every connection: May 22 13:47:16 LaptopMB kernel: pl2303 ttyUSB1: pl2303_open - failed submitting interrupt urb, error -28 When detaching the device, a kernel bug appears: May 22 13:47:22 LaptopMB kernel: usb 1-1.2.1: USB disconnect, address 6 May 22 13:47:22 LaptopMB kernel: usb 1-1.2.1.1: USB disconnect, address 7 May 22 13:47:22 LaptopMB kernel: usb 1-1.2.1.1.2: USB disconnect, address 9 May 22 13:47:22 LaptopMB kernel: drivers/usb/class/usblp.c: usblp0: removed May 22 13:47:22 LaptopMB kernel: usb 1-1.2.1.2: USB disconnect, address 8 May 22 13:47:22 LaptopMB kernel: ------------[ cut here ]------------ May 22 13:47:22 LaptopMB kernel: kernel BUG at kernel/workqueue.c:109! May 22 13:47:22 LaptopMB kernel: invalid opcode: 0000 [#1] May 22 13:47:22 LaptopMB kernel: PREEMPT May 22 13:47:22 LaptopMB kernel: Modules linked in: pl2303 radeon drm rfcomm l2cap bluetooth lp ftdi_sio usbserial thermal fan button battery ac usblp capifs cryptoloop af_packet xt_tcpudp xt_state ip6table_filter ip6_tables ipv6 iptable_filter ip_tables x_tables ip_conntrack_tftp ip_conntrack_proto_sctp ip_conntrack_pptp ip_conntrack_netlink ip_nat ip_conntrack_netbios_ns ip_conntrack_irc ip_conntrack_ftp ip_conntrack_amanda ip_conntrack nfnetlink ibm_acpi nvram speedstep_centrino freq_table processor eth1394 pcmcia tsdev e100 mii yenta_socket ohci1394 ipw2100 ieee80211 ieee80211_crypt ieee1394 rsrc_nonstatic pcmcia_core irtty_sir sir_dev irda crc_ccitt parport_pc snd_intel8x0 parport snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm 8250_pnp psmouse serio_raw snd_timer pcspkr snd soundcore snd_page_alloc i2c_i801 hw_random shpchp pci_hotplug intel_agp agpgart 8250_pci 8250 serial_core evdev usbmouse usbhid usbkbd uhci_hcd ehci_hcd usbcore May 22 13:47:22 LaptopMB kernel: CPU: 0 May 22 13:47:22 LaptopMB kernel: EIP: 0060:[queue_work+85/96] Tainted: P VLI May 22 13:47:22 LaptopMB kernel: EFLAGS: 00210286 (2.6.16.16-kanotix-up-1 #1) May 22 13:47:22 LaptopMB kernel: EIP is at queue_work+0x55/0x60 May 22 13:47:22 LaptopMB kernel: eax: f519713c ebx: 00000000 ecx: dffd33c0 edx: f5197138 May 22 13:47:22 LaptopMB kernel: esi: ecfdc340 edi: ecfdc340 ebp: dfb2e214 esp: c1d33e78 May 22 13:47:22 LaptopMB kernel: ds: 007b es: 007b ss: 0068 May 22 13:47:22 LaptopMB kernel: Process khubd (pid: 355, threadinfo=c1d32000 task=c1da5560) May 22 13:47:22 LaptopMB kernel: Stack: <0>00000000 f930ab37 f5197000 dfb2e200 f93ac040 f93ac064 dfb2e214 f8e89106 May 22 13:47:22 LaptopMB kernel: dfb2e200 dfb2e27c dfb2e214 c02fe0ff dfb2e214 dfb2e214 dfb2e214 f8e9a060 May 22 13:47:22 LaptopMB kernel: c02fe308 dfb2e214 c02fdaa9 dfb2e214 dfb2e25c dfb2e214 f14b3858 00000000 May 22 13:47:22 LaptopMB kernel: Call Trace: May 22 13:47:22 LaptopMB kernel: [pg0+953723703/1067967488] usb_serial_disconnect+0x47/0xb0 [usbserial] May 22 13:47:22 LaptopMB kernel: [pg0+948998406/1067967488] usb_unbind_interface+0x36/0x80 [usbcore] May 22 13:47:22 LaptopMB kernel: [__device_release_driver+79/112] __device_release_driver+0x4f/0x70 May 22 13:47:22 LaptopMB kernel: [device_release_driver+24/48] device_release_driver+0x18/0x30 May 22 13:47:22 LaptopMB kernel: [bus_remove_device+137/176] bus_remove_device+0x89/0xb0 May 22 13:47:22 LaptopMB kernel: [device_del+57/112] device_del+0x39/0x70 May 22 13:47:22 LaptopMB kernel: [pg0+948994406/1067967488] usb_disable_device+0xb6/0x110 [usbcore] May 22 13:47:22 LaptopMB kernel: [pg0+948969907/1067967488] usb_disconnect+0x83/0xf0 [usbcore] May 22 13:47:22 LaptopMB kernel: [pg0+948969889/1067967488] usb_disconnect+0x71/0xf0 [usbcore] May 22 13:47:22 LaptopMB kernel: [pg0+948979308/1067967488] hub_thread+0x3bc/0xc84 [usbcore] May 22 13:47:22 LaptopMB kernel: [autoremove_wake_function+0/64] autoremove_wake_function+0x0/0x40 May 22 13:47:22 LaptopMB kernel: [kthread+139/192] kthread+0x8b/0xc0 May 22 13:47:22 LaptopMB kernel: [pg0+948978352/1067967488] hub_thread+0x0/0xc84 [usbcore] May 22 13:47:22 LaptopMB kernel: [kthread+183/192] kthread+0xb7/0xc0 May 22 13:47:22 LaptopMB kernel: [kthread+0/192] kthread+0x0/0xc0 May 22 13:47:22 LaptopMB kernel: [kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10 May 22 13:47:22 LaptopMB kernel: Code: 14 8b 40 08 a8 08 75 1a 89 d8 5b c3 8d 42 04 3b 42 04 75 17 8b 01 bb 01 00 00 00 e8 d6 fa ff ff eb d1 e8 9f 1f 2e 00 89 d8 5b c3 <0f> 0b 6d 00 a1 dd 43 c0 eb df 90 89 c2 a1 78 de 54 c0 e9 94 ff May 22 13:47:22 LaptopMB kernel: <6>note: khubd[355] exited with preempt_count 1 Steps to reproduce: Difficult, I guess, as my Desktop running the same distro and the same kernel does not have this problem. I hope the syslog helps a bit. Maybe one addition: I also have another serial-to-usb device connected (no pl2303), so this one is the second. The first one uses the fddi_sio driver and has never shown any problems. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
