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!
