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Red Hat Bugzilla – Attachment 153596 Details for
Bug 234746
reading/writing ftdi_sio's device attributes through sysfs produces Oops
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call trace from dmesg output
ftdi-bug.txt (text/plain), 2.72 KB, created by
Tuomas Mursu
on 2007-04-27 10:28:00 UTC
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Description:
call trace from dmesg output
Filename:
MIME Type:
Creator:
Tuomas Mursu
Created:
2007-04-27 10:28:00 UTC
Size:
2.72 KB
patch
obsolete
>usbcore: registered new interface driver usbserial >drivers/usb/serial/usb-serial.c: USB Serial support registered for generic >usbcore: registered new interface driver usbserial_generic >drivers/usb/serial/usb-serial.c: USB Serial Driver core >drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB Serial Device >ftdi_sio 3-2:1.0: FTDI USB Serial Device converter detected >BUG: unable to handle kernel NULL pointer dereference at virtual address 00000014 > printing eip: >f8b69484 >*pde = 3c4f1067 >Oops: 0002 [#1] >SMP >last sysfs file: /block/sda/sda3/dev >Modules linked in: ftdi_sio usbserial snd_seq_oss snd_seq_midi_event snd_seq i2c_viapro parport rtc_core rtc_lib pcspkr snd_pcm_oss i2c_core via_rhine mii snd_mixer_oss snd_pcm emu10k1_gp gameport snd_seq_device snd_timer snd_page_alloc snd_util_mem snd_hwdep fw_ohci fw_core snd soundcore sg ext3 jbd mbcache squashfs dm_snapshot dm_mod loop sr_mod cdrom ata_generic sd_mod ehci_hcd uhci_hcd pata_via sata_via libata scsi_mod >CPU: 0 >EIP: 0060:[<f8b69484>] Not tainted VLI >EFLAGS: 00210246 (2.6.20-1.3104.fc7 #1) >EIP is at ftdi_USB_UIRT_setup+0x37/0x52 [ftdi_sio] >eax: 00000000 ebx: dfe6255c ecx: f8b6fd20 edx: f8b6944d >esi: f8b6fd20 edi: f8b69a22 ebp: f6a3cc60 esp: f6a3cc50 >ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 >Process modprobe (pid: 2088, ti=f6a3c000 task=f6a59550 task.ti=f6a3c000) >Stack: f6a3cc68 c04f51a1 00000000 f6b2b4f0 f6a3cc68 f8b680c4 f6a3cd80 f8b5ebe2 > f8b60a07 f8b6b082 c1f86750 f8b6b62b c1f86608 f6c41400 dfe62be4 00000000 > 00000008 c1fa840c f8b6fd20 f656d944 00000000 00000000 00000001 00000001 >Call Trace: > [<c04061e9>] show_trace_log_lvl+0x1a/0x2f > [<c0406299>] show_stack_log_lvl+0x9b/0xa3 > [<c0406459>] show_registers+0x1b8/0x289 > [<c0406657>] die+0x12d/0x242 > [<c0618046>] do_page_fault+0x3ee/0x4ba > [<c06167dc>] error_code+0x7c/0x84 > [<f8b680c4>] ftdi_sio_attach+0x12/0x16 [ftdi_sio] > [<f8b5ebe2>] usb_serial_probe+0xb9f/0x1045 [usbserial] > [<c057a6af>] usb_probe_interface+0x60/0x83 > [<c0562b69>] really_probe+0xc7/0x150 > [<c0562c87>] driver_probe_device+0x95/0xa1 > [<c0562daf>] __driver_attach+0x76/0xaf > [<c056213d>] bus_for_each_dev+0x3a/0x5f > [<c05629d3>] driver_attach+0x19/0x1b > [<c0562424>] bus_add_driver+0x6a/0x170 > [<c0562fdc>] driver_register+0x79/0x7e > [<c057a1fa>] usb_register_driver+0x7e/0xe5 > [<f8adf094>] ftdi_init+0x94/0xc2 [ftdi_sio] > [<c044976d>] sys_init_module+0x159b/0x16ea > [<c0405078>] syscall_call+0x7/0xb > ======================= >Code: 11 b7 f8 00 74 1c c7 44 24 08 ac a7 b6 f8 c7 44 24 04 bf a9 b6 f8 c7 04 24 dd a9 b6 f8 e8 ee ea 8b c7 8b 43 14 8b 80 7c 02 00 00 <83> 48 14 30 c7 40 08 4d 00 00 00 c7 80 b0 00 00 00 0f 00 00 00 >EIP: [<f8b69484>] ftdi_USB_UIRT_setup+0x37/0x52 [ftdi_sio] SS:ESP 0068:f6a3cc50
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