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[debian-users:38250] Bug#JP/1607: ｍｉｎｉｃｏｍ終了時にＵＳＢシリアルが復旧しない
Package: kernel-source
Version: 2.4.20-3woody.11
Package: minicom
Version: 1.83.1-4.5
USB Device: USB-RSAQ2 (I.O DATA)
minicom終了時にttyUSB*がリセットされません。
ロック(/var/lock)は解除されているようです。
なお、下記syslogの日時とホスト名は省略してあります。
----- IO DATAのUSB-RSAQ2を接続したときのsyslogメッセージ -----
kernel: usbserial.c: PL-2303 converter detected
kernel: usbserial.c: PL-2303 converter now attached to ttyUSB0 (or usb/tts/0
for devfs)
kernel: hub.c: new USB device 00:1f.2-2, assigned address 5
kernel: usbserial.c: PL-2303 converter detected
kernel: usbserial.c: PL-2303 converter now attached to ttyUSB1 (or usb/tts/1
for devfs)
----- minicomを終了させたときのsyslogメッセージ -----
kernel: Unable to handle kernel NULL pointer dereference at virtual address
00000014
kernel: printing eip:
kernel: c02040f9
kernel: *pde = 00000000
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[uhci_reset_interrupt+37/160] Not tainted
kernel: EFLAGS: 00010006
kernel: eax: cfe13200 ebx: ffffff8d ecx: cfc1f400 edx: 00000000
kernel: esi: cfc391e0 edi: 00000000 ebp: 00000246 esp: cc343e64
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process minicom (pid: 407, stackpage=cc343000)
kernel: Stack: ffffff8d cfc391e0 00000000 00000282 c0205858 cfc391e0
cfc391e8 cfc391e0
kernel: 00000286 c12f0560 00000001 00000000 cfe13a00 c13fd1d4
c0204d70 cfc391e0
kernel: cfc1f400 ffffffff cfc1f41c cfc1f400 c13fd1d4 c01f93fe
cfc391e0 c0209319
kernel: Call Trace: [uhci_call_completion+368/432]
[uhci_unlink_urb+344/356] [usb_unlink_urb+38/48] [pl2303_close+317/364]
[__serial_close+76/124]
kernel: [serial_close+139/160] [release_dev+584/1284]
[ext2_delete_inode+0/152] [ext2_delete_inode+0/152] [destroy_inode+38/44]
[iput+495/504]
kernel: [d_delete+76/124] [tty_release+10/16] [fput+76/224]
[filp_close+85/96] [sys_close+67/84] [system_call+51/56]
kernel:
kernel: Code: 8b 52 14 8b 42 e8 8b 7a ec 25 00 00 00 2f 0d 00 00 80 01 89
-----