From: Luca Ognibene <ognibene@antek.it>
To: linux-kernel@vger.kernel.org
Subject: ftdi error in /var/log/messages when connecting to gprs
Date: Thu, 06 Jul 2006 17:35:27 +0200 [thread overview]
Message-ID: <44AD2DBF.4060200@antek.it> (raw)
Hi, i have an error very often when using a USB modem (from Hamlet) to
connect to gprs. This is the log from /var/log/messages:
Jul 6 17:06:51 aylook012 chat[4783]: Failed (NO CARRIER)
Jul 6 17:06:52 aylook012 pppd[4756]: Modem hangup
Jul 6 17:06:52 aylook012 pppd[4756]: Exit.
Jul 6 17:06:52 aylook012 pppd[4795]: pppd 2.4.3 started by root, uid 0
Jul 6 17:06:52 aylook012 kernel: c01e58c5
Jul 6 17:06:52 aylook012 kernel: Modules linked in: ppp_deflate
zlib_deflate bsd_comp ppp_async crc_ccitt ppp_generic slhc ftdi_sio
usbserial bttv video_buf firmware_class v4l2_common btcx_risc tveeprom
videodev i2c_algo_bit i2c_core snd_intel8x0 snd_ac97_codec snd_pcm_oss
snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc sd_mod
pcmcia yenta_socket rsrc_nonstatic pcmcia_core ipv6 ipt_REJECT ipt_LOG
ipt_state ipt_pkttype ipt_recent ipt_iprange ipt_physdev ipt_multiport
ipt_conntrack iptable_mangle ip_nat_irc ip_nat_tftp ip_nat_ftp
iptable_nat ip_conntrack_irc ip_conntrack_tftp ip_conntrack_ftp ip_conntrack
iptable_filter ip_tables ohci_hcd usbcore sata_sis libata scsi_mod
8139too mii ide_cd cdrom rtc ext3 jbd ide_disk ide_generic via82cxxx
trm290 triflex slc90e66 sis5513 siimage serverworks sc1200 rz1000 piix
pdc202xx_old opti621 ns87415 hpt366 hpt34x
generic cy82c693 cs5530 cs5520 cmd64x atiixp amd74xx alim15x3 aec62xx
pdc202xx_new ide_core unix fbcon tileblit font bitblit
vesafb cfbcopyarea cfbimgblt
Jul 6 17:06:52 aylook012 kernel: fbfillrect softcursor capability commoncap
Jul 6 17:06:52 aylook012 kernel: CPU: 0
Jul 6 17:06:52 aylook012 kernel: EIP: 0060:[tty_get_baud_rate+5/76]
Not tainted VLI
Jul 6 17:06:52 aylook012 kernel: EFLAGS: 00010282 (2.6.12-1-386)
Jul 6 17:06:52 aylook012 kernel: EIP is at tty_get_baud_rate+0x5/0x4c
Jul 6 17:06:52 aylook012 pppd[4797]: pppd 2.4.3 started by root, uid 0
Jul 6 17:06:52 aylook012 pppd[4797]: Removed stale lock on modem (pid 4795)
Jul 6 17:06:52 aylook012 kernel: eax: cb14ca00 ebx: 00000000 ecx:
cef2f080 edx: cef2a000
Jul 6 17:06:52 aylook012 kernel: esi: cb14ca00 edi: cb14f580 ebp:
cef2f080 esp: c42a5e34
Jul 6 17:06:52 aylook012 kernel: ds: 007b es: 007b ss: 0068
Jul 6 17:06:52 aylook012 kernel: Process pppd (pid: 4795,
threadinfo=c42a4000 task=c26ee020)
Jul 6 17:06:52 aylook012 kernel: Stack: cea28f40 cfb3e279 00000000
cea28f40 cb14ca00 cb14f580 cfb3e205 cb14ca00
Jul 6 17:06:52 aylook012 kernel: 00000008 80000cbd cb14f580
ce712c00 cfb3ff15 cb14ca00 00000000 8000007b
Jul 6 17:06:52 aylook012 kernel: cb14f580 cb14ca00 cb14ca00
ce712c00 cfb3eecb cb14ca00 c42a5e90 ce53695c
Jul 6 17:06:52 aylook012 kernel: Call Trace:
Jul 6 17:06:52 aylook012 kernel: [pg0+259613305/1069900800]
get_ftdi_divisor+0x15/0x2b8 [ftdi_sio]
Jul 6 17:06:52 aylook012 kernel: [pg0+259613189/1069900800]
change_speed+0x29/0x88 [ftdi_sio]
Jul 6 17:06:52 aylook012 kernel: [pg0+259620629/1069900800]
ftdi_set_termios+0x201/0x574 [ftdi_sio]
Jul 6 17:06:52 aylook012 kernel: [pg0+259616459/1069900800]
ftdi_open+0x77/0x160 [ftdi_sio]
Jul 6 17:06:52 aylook012 kernel: [link_path_walk+86/244]
link_path_walk+0x56/0xf4
Jul 6 17:06:52 aylook012 kernel: [pg0+259654503/1069900800]
serial_open+0x7b/0xfc [usbserial]
Jul 6 17:06:52 aylook012 kernel: [tty_open+250/700] tty_open+0xfa/0x2bc
Jul 6 17:06:52 aylook012 kernel: [chrdev_open+107/304]
chrdev_open+0x6b/0x130
Jul 6 17:06:52 aylook012 kernel: [dentry_open+178/460]
dentry_open+0xb2/0x1cc
Jul 6 17:06:52 aylook012 kernel: [filp_open+70/80] filp_open+0x46/0x50
Jul 6 17:06:52 aylook012 kernel: [__fput+157/236] __fput+0x9d/0xec
Jul 6 17:06:52 aylook012 kernel: [sys_open+47/104] sys_open+0x2f/0x68
Jul 6 17:06:52 aylook012 kernel: [syscall_call+7/11] syscall_call+0x7/0xb
Jul 6 17:06:52 aylook012 kernel: Code: ef 89 43 08 8b 04 95 20 52 30 c0
5b c3 90 8d 4a 0f 3b 0d 9c 52 30 c0 77 e5 89 ca 8b 04 95 20 52 30 c0 5b
c3 89 f6 53 8b 5c 24 08 <ff> 73 68 e8 af ff ff ff 5a 3d 00 96 00 00 74
03 5b c3 90 8b 93
Jul 6 17:06:52 aylook012 kernel: <1>Unable to handle kernel NULL
pointer dereference at virtual address 00000084
Jul 6 17:06:52 aylook012 kernel: cfb48bac
Motherboard: Asus P5S800-VM
Modem (from lsusb):
Bus 002 Device 002: ID 0403:6001 Future Technology Devices
International, Ltd 8-bit FIFO
Linux: i'm using a Debian sarge (kernel 2.6.8), i've also tried with a
2.6.16 from debian backport (the log is using 2.6.16)
Any idea on what can be wrong?
(please CC me as i'm not subscribed to the list)
ciao
Luca
next reply other threads:[~2006-07-06 15:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-06 15:35 Luca Ognibene [this message]
2006-07-07 14:00 ` ftdi error in /var/log/messages when connecting to gprs Luiz Fernando N. Capitulino
2006-07-10 10:04 ` Luca Ognibene
2006-07-10 10:04 ` Luca Ognibene
2006-07-13 10:46 ` Luca Ognibene
2006-07-13 12:46 ` Luiz Fernando N. Capitulino
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