Just to confirm, disconnections don't occur in Windows. I use Gnome-PPP to dial and it uses wvdial. It can't be killed. Once, there was a status 'uninterruptuble' with 'uart_close' message in System Monitor. Once, automatic redial succeed. But mostly, when a break occures, I have to hard reset laptop because everything is frozen. On 6/9/10, Nikolay Zhuravlev <xxor@xxxxxxx> wrote: > > The following suggests that the agrmodem messed up the kernel: > >> Jun ?8 23:34:48 t-u kernel: [ ?511.281023] kernel BUG at >> /build/buildd/linux-2.6.32/kernel/timer.c:791! > > and the kernel has to be rebooted. The 'rmmod' will not > do the trick. > > My guess is that the binary blob in the agrsmodem driver > may not be compatible with some of the power-saving > features in the recent linux kernels (2.6.32 and up). > Whether those features can be disabled or configured > not to interfere with the driver remains to be > investigated. > > -- > WBR, Nikolay Zhuravlev > > Wed, 9 Jun 2010 09:28:04 +1000 письмо от Joshua Gordon Crawford > <jgcrawford@xxxxxxxxx>: > >> On 9 June 2010 08:20, Timur Gadzo <gtimur@xxxxxxxxx> wrote: >> > Thank you for your reply. >> > I'm using the modem during that time, so it's not disconnection. >> >> Okay, well I can't suggest much else, sorry (I use a different agrsm >> driver, for a different modem). >> >> > When I try to remove modules, I get error message "Module agrserial is >> > in use" and "Module agrmodem is in use". >> >> Something is holding the modem open. Pppd or wvdial, etc. You'll need >> to kill it before you can reload the modules. >> >> > Here is part of my kern.log. >> > >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.017630] HDA Intel 0000:00:1b.0: >> > power state changed by ACPI to D0 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.017647] HDA Intel 0000:00:1b.0: PCI >> > INT A -> GSI 16 (level, low) -> IRQ 16 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.017695] HDA Intel 0000:00:1b.0: >> > setting latency timer to 64 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.042749] * Hello Agere Driver ** >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.042797] usbcore: registered new >> > interface driver agr12dec2006 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.122877] input: HDA Digital PCBeep >> > as /devices/pci0000:00/0000:00:1b.0/input/input7 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.236171] input: ImPS/2 Synaptics >> > TouchPad as /devices/platform/i8042/serio4/input/input8 >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.350072] type=1505 >> > audit(1276032400.350:5): ?operation="profile_load" pid=1038 >> > name="/usr/share/gdm/guest-session/Xsession" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.353912] type=1505 >> > audit(1276032400.354:6): ?operation="profile_replace" pid=1041 >> > name="/sbin/dhclient3" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.354465] type=1505 >> > audit(1276032400.354:7): ?operation="profile_replace" pid=1041 >> > name="/usr/lib/NetworkManager/nm-dhcp-client.action" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.354763] type=1505 >> > audit(1276032400.354:8): ?operation="profile_replace" pid=1041 >> > name="/usr/lib/connman/scripts/dhclient-script" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.386235] type=1505 >> > audit(1276032400.386:9): ?operation="profile_load" pid=1044 >> > name="/usr/bin/evince" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.402406] type=1505 >> > audit(1276032400.402:10): ?operation="profile_load" pid=1044 >> > name="/usr/bin/evince-previewer" >> > Jun ?8 23:26:40 t-u kernel: [ ? 23.419326] type=1505 >> > audit(1276032400.418:11): ?operation="profile_load" pid=1044 >> > name="/usr/bin/evince-thumbnailer" >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.690024] iwl3945 0000:10:00.0: >> > firmware: requesting iwlwifi-3945-2.ucode >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.838001] iwl3945 0000:10:00.0: >> > loaded firmware version 15.32.2.9 >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.838237] iwl3945 0000:10:00.0: Radio >> > disabled by HW RF Kill switch >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.839986] ? alloc irq_desc for 31 on >> > node -1 >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.839989] ? alloc kstat_irqs on node -1 >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.840013] tg3 0000:18:00.0: irq 31 >> > for MSI/MSI-X >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.869453] ADDRCONF(NETDEV_UP): eth0: >> > link is not ready >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.876717] Bridge firewalling registered >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.904816] virbr0: starting userspace >> > STP failed, starting kernel STP >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.915279] ip_tables: (C) 2000-2006 >> > Netfilter Core Team >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.917523] iwl3945 0000:10:00.0: Radio >> > disabled by HW RF Kill switch >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.978351] Loading module Agere Modem >> > Controller driver version 2.1.80 (2007-10-01) >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.978355] Disabling lock debugging >> > due to kernel taint >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.980378] serial8250_register_ports: >> > BaseAddress 0x4004 Irq 16 >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.980383] ttyAGS3 at I/O 0x4004 (irq >> > = 16) is a AgereModem >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.980770] agrserial - ret_val 0, >> > call: lt_modem_ops.init_modem >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.980773] Loading module Agere Modem >> > Interface driver version 2.1.80.0 (2007-10-01) >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.993237] nf_conntrack version 0.5.0 >> > (16384 buckets, 65536 max) >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.993425] CONFIG_NF_CT_ACCT is >> > deprecated and will be removed soon. Please use >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.993427] nf_conntrack.acct=1 kernel >> > parameter, acct=1 nf_conntrack module option or >> > Jun ?8 23:26:41 t-u kernel: [ ? 24.993429] sysctl >> > net.netfilter.nf_conntrack_acct=1 to enable it. >> > Jun ?8 23:26:42 t-u kernel: [ ? 25.270968] lo: Disabled Privacy >> > Extensions >> > Jun ?8 23:26:44 t-u kernel: [ ? 27.248142] device eth0 entered >> > promiscuous mode >> > Jun ?8 23:26:44 t-u kernel: [ ? 27.304031] device eth0 left promiscuous >> > mode >> > Jun ?8 23:26:44 t-u kernel: [ ? 27.329090] device eth0 entered >> > promiscuous mode >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.964835] vboxdrv: Trying to >> > deactivate the NMI watchdog permanently... >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.964835] vboxdrv: Successfully done. >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.964836] vboxdrv: Found 2 processor >> > cores. >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.965208] vboxdrv: fAsync=0 >> > offMin=0x19c offMax=0x715 >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.965699] vboxdrv: TSC mode is >> > 'synchronous', kernel timer mode is 'normal'. >> > Jun ?8 23:26:45 t-u kernel: [ ? 28.965701] vboxdrv: Successfully >> > loaded version 3.2.2 (interface 0x00140001). >> > Jun ?8 23:26:52 t-u kernel: [ ? 35.588098] virbr0: no IPv6 routers >> > present >> > Jun ?8 23:28:41 t-u kernel: [ ?144.977710] ==> codecType = 0x32 >> > Jun ?8 23:30:20 t-u kernel: [ ?243.656020] ltmodem: vxd - modem status >> > int >> > Jun ?8 23:30:42 t-u kernel: [ ?265.494645] PPP BSD Compression module >> > registered >> > Jun ?8 23:30:42 t-u kernel: [ ?265.518938] PPP Deflate Compression >> > module registered >> > Jun ?8 23:30:48 t-u kernel: [ ?271.540944] __ratelimit: 21 callbacks >> > suppressed >> > Jun ?8 23:30:48 t-u kernel: [ ?271.540975] operapluginwrap[2778]: >> > segfault at 0 ip (null) sp bfb9876c error 4 in >> > libXdmcp.so.6.0.0[110000+4000] >> > Jun ?8 23:30:48 t-u kernel: [ ?271.605590] operapluginwrap[2789]: >> > segfault at 0 ip (null) sp bfad78ac error 4 in >> > libXt.so.6.0.0[110000+4f000] >> > Jun ?8 23:30:48 t-u kernel: [ ?271.623335] operapluginwrap[2800]: >> > segfault at 0 ip (null) sp bf9f52cc error 4 in >> > libgcc_s.so.1[110000+1d000] >> > Jun ?8 23:30:48 t-u kernel: [ ?271.643349] operapluginwrap[2811]: >> > segfault at 0 ip (null) sp bfc3f07c error 4 in >> > libXext.so.6.4.0[110000+e000] >> > Jun ?8 23:34:43 t-u kernel: [ ?506.139271] ==> codecType = 0x32 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.224798] ==> codecType = 0x32 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.280992] ------------[ cut here >> > ]------------ >> > Jun ?8 23:34:48 t-u kernel: [ ?511.281023] kernel BUG at >> > /build/buildd/linux-2.6.32/kernel/timer.c:791! >> > Jun ?8 23:34:48 t-u kernel: [ ?511.281061] invalid opcode: 0000 [#1] SMP >> > Jun ?8 23:34:48 t-u kernel: [ ?511.281094] last sysfs file: >> > /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/C23B/voltage_now >> >> It's crashed here, after checking the battery status (and presumably >> trying to go into power-saving mode). So, the solution probably >> involves changing power-saving options, but I am not experienced in >> that area. You've already tried disabling power-saving on the sound >> (modem) card, so maybe the next step to try is disabling APM in the >> kernel or BIOS. >> >> > Jun ?8 23:34:48 t-u kernel: [ ?511.281145] Modules linked in: >> > ppp_deflate zlib_deflate bsd_comp ppp_async crc_ccitt binfmt_misc >> > vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat nf_nat >> > nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack agrserial >> > ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp >> > dm_crypt kvm_intel kvm snd_hda_codec_analog agrmodem snd_hda_intel >> > arc4 snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm >> > snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event >> > snd_seq snd_timer snd_seq_device iwl3945 ppdev iwlcore tpm_infineon >> > mac80211 parport_pc snd tpm tpm_bios hp_accel lis3lv02d input_polldev >> > led_class cfg80211 compat_firmware_class soundcore snd_page_alloc >> > psmouse serio_raw lp parport raid10 raid456 async_raid6_recov async_pq >> > raid6_pq async_xor async_memcpy async_tx raid1 raid0 multipath linear >> > dm_raid45 xor vesafb fbcon tileblit font bitblit softcursor i915 >> > drm_kms_helper drm intel_agp agpgart i2c_algo_bit video output tg3 >> > ahci ramzswap xvmalloc l >> > Jun ?8 23:34:48 t-u kernel: zo_decompress lzo_compress >> > Jun ?8 23:34:48 t-u kernel: [ ?511.281987] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282000] Pid: 2629, comm: wvdial >> > Tainted: P ? ? ? ? ? (2.6.32-22-generic #35-Ubuntu) HP Compaq 6710b >> > (KE124EA#AKN) >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282054] EIP: 0060:[<c015be38>] >> > EFLAGS: 00210282 CPU: 0 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282088] EIP is at add_timer+0x18/0x20 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282110] EAX: f9821940 EBX: f8aef114 >> > ECX: 00000000 EDX: f8aeee40 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282143] ESI: f8aef114 EDI: fffffff4 >> > EBP: edeffd70 ESP: edeffd70 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282176] ?DS: 007b ES: 007b FS: 00d8 >> > GS: 00e0 SS: 0068 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282206] Process wvdial (pid: 2629, >> > ti=edefe000 task=edcae680 task.ti=edefe000) >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282246] Stack: >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282260] ?edeffd78 f9719343 edeffd88 >> > f97d426c f97d4227 f8aef114 edeffda8 f97d42f5 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282329] <0> 000003e8 00000000 >> > 00000000 00000000 12345678 f8aef114 edeffdb0 f97196a2 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.282407] <0> edeffdc8 f8aedf40 >> > c01cf9fb 00000000 f0519998 f8aef114 edeffde0 c03dc75a >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] Call Trace: >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f9719343>] ? >> > lt_add_timer+0x33/0x40 [agrmodem] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f97d426c>] ? >> > VMODEM_Start_Timer+0x28/0x33 [agrmodem] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f97d4227>] ? >> > timertick_function+0x0/0x1d [agrmodem] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f97d42f5>] ? >> > vxdPortOpen+0x3b/0x42 [agrmodem] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f97196a2>] ? >> > modemPortOpen+0x12/0x20 [agrmodem] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<f8aedf40>] ? >> > serial8250_startup+0x1a0/0x370 [agrserial] >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c01cf9fb>] ? >> > __get_free_pages+0x2b/0x30 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c03dc75a>] ? >> > uart_startup+0x4a/0x130 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c03dd2c4>] ? >> > uart_open+0x104/0x210 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c03b51a3>] ? >> > __tty_open+0x1b3/0x480 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c021a751>] ? >> > dput+0x91/0x130 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c03b5494>] ? >> > tty_open+0x24/0x40 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c020b295>] ? >> > chrdev_open+0xf5/0x200 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c016ed2a>] ? >> > in_group_p+0x2a/0x30 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0205e75>] ? >> > __dentry_open+0xe5/0x290 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c02f551d>] ? >> > security_inode_permission+0x1d/0x30 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0210d7e>] ? >> > inode_permission+0x9e/0xb0 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c020611d>] ? >> > nameidata_to_filp+0x5d/0x70 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c020b1a0>] ? >> > chrdev_open+0x0/0x200 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0214742>] ? >> > do_filp_open+0x4d2/0x990 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0207934>] ? >> > do_sync_write+0xc4/0x100 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0205bd5>] ? >> > do_sys_open+0x55/0x160 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c020956d>] ? >> > fput+0x1d/0x30 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0205a8c>] ? >> > filp_close+0x4c/0x80 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c0205d4e>] ? >> > sys_open+0x2e/0x40 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] ?[<c01033ec>] ? >> > syscall_call+0x7/0xb >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] Code: 75 f3 8b 03 e9 93 fe >> > ff ff 0f 0b eb fe 8d b6 00 00 00 00 55 89 e5 0f 1f 44 00 00 8b 10 85 >> > d2 75 0a 8b 50 08 e8 0a fe ff ff 5d c3 <0f> 0b eb fe 8d 74 26 00 55 89 >> > e5 0f 1f 44 00 00 e8 d3 52 ff ff >> > Jun ?8 23:34:48 t-u kernel: [ ?511.284970] EIP: [<c015be38>] >> > add_timer+0x18/0x20 SS:ESP 0068:edeffd70 >> > Jun ?8 23:34:48 t-u kernel: [ ?511.350842] ---[ end trace >> > 705390fbc6d14c83 ]--- >> > Jun ?8 23:58:48 t-u kernel: Kernel logging (proc) stopped. >> > >> > >> > >> > On 6/8/10, Joshua Gordon Crawford <jgcrawford@xxxxxxxxx> wrote: >> >> On 7 June 2010 18:28, Timur Gadzo <gtimur@xxxxxxxxx> wrote: >> >>> Hello >> >> >> >> G'day, >> >> >> >>> According to ModemData attached here, I downloaded and installed >> >>> http://linmodems.technion.ac.il/packages/ltmodem/11c11040/agrsm-11c11040_20091225_i386.deb >> >>> on my HP Compaq 6710b with Ubuntu 10.04, kernel 2.6.32-22-generic. >> >>> Modem started to work, but it only works for about 10-15 minutes and >> >>> than it disconnects. Redial does not work, I have to restart laptop. >> >> >> >> Are you actively using the modem during that time? It could be your >> >> ISP disconnecting an idle user. If that's the case, and you want to >> >> keep the connection alive, just do a little network activity >> >> occasionally. E.g., use cron to ping your ISP's homepage (or some >> >> other reliable site) once every 5 minutes. >> >> >> >> Also, it's usually not necessary to reboot the system unless you >> >> change the kernel. Unloading and reloading the appropriate modules >> >> should be enough to reactivate the modem: >> >> $ sudo rmmod agrserial >> >> $ sudo rmmod agrmodem >> >> $ sudo modprobe agrmodem >> >> $ sudo modprobe agrserial >> >> >> >> Note, the order is important in those commands: agrserial runs on top >> >> of agrmodem. >> >> >> >>> In my ?/etc/modprobe.d/alsa-base.conf there wasn't a line with >> >>> "options snd-hda-intel power_save=10". Nevertheless, I added ?"options >> >>> snd-hda-intel power_save=0". It didn't help with disconnects. >> >>> >> >>> Regards >> >>> Timur Gadzo >> >>> Sarajevo >> >>> >> >> >> >> >> >> >> >> -- >> >> Joshua Crawford ... http://geocities.com/mortarn >> >> >> >> http://www.rewardscentral.com.au/Join/Default.aspx?refer=mortarn >> >> Be rewarded! Join RewardsCentral today! >> >> >> > >> >> >> >> -- >> Joshua Crawford ... http://geocities.com/mortarn >> >> http://www.rewardscentral.com.au/Join/Default.aspx?refer=mortarn >> Be rewarded! Join RewardsCentral today! > >
