>Исходник скачал, пытаюсь разобраться, что к чему. Довольно тяжелая вещь.
>Может, попробуешь написать письмо с этим вопросом одному из разработчиков? Там в
>списке есть один человек из Харькова, может, подскажет, что там не
>так?
Я подготовил формальный отчет согласно файлу REPORTING-BUGS из кернеля с полной информацией которую смог насобирать.
Спасибо за помощь.
Юрий
PROBLEM: Hang system then I use modules of PCTEL CNR modem on VIA chipset
1. Hang system then I use modules of PCTEL CNR modem on VIA chipset
2. I have a PC-Chips motherboard 925 with Pentium 4 and VIA 8233 chipset
and got hang kernel when I use driver PC-Tel Winmodem with this motherboard and modem CNR.
I have modem working with Mandrake 8.x with kernel 2.4.8, and I wish that
functioning with kernel 2.4.19 - 2.4.20.
I now using Xandros Linux with kernel 2.4.19-x1, gcc 2.95.4.
With kernel 2.4.19 modem is able to touch phone number, connected in low speed,
and when modem is disconnecting my system is get freezed.
When I use minicom in console and minicom send initialization string to modem
ATZ
OK
and I send string
ATH1
OK
and later 5 - 10 seconds my system get freezed with message of kernel panic
3. keywords: pctel ptserial modem CNR driver
4. cat /proc/version
Linux version 2.4.19-x1 (root@build-expo) (gcc version 2.95.4 20011002 (Debian prerelease))
#1 Mon Sep 23 22:48:11 EDT 2002
5.
Message original from kernel then I use modem PCTEL:
---------------------------------------------------------------------------------
Unable to handle kernel paging request at virtual address ce999000
*pde = 0df71067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 1010:[<ce8c7573>] Tainted: P
EFLAGS: 00010003
eax: fff8e71f ebx: ce914c68 ecx: 3ffe3060 edx: 000733ad
esi: ce998ffd edi: ce917204 ebp: 0000001b esp: c0269ef8
ds: 1018 es: 1018 ss: 1018
Process swapper (pid: 0, stackpage=c0269000)
Stack: cb7666c0 04000001 0000000b c0269fac ce8f8ca0 ce8ffc60 3f666666 037f0001
cb7666c0 04000001 0000000b ce8b0a9b cb7666c0 cb7666c0 ce872fad ce8c72b0
0000000b ce99f089 c0269fac ce99a798 cb7666c0 04000001 0000000b c0269fac
Call Trace: [<ce8f8ca0>] [<ce8ffc60>] [<ce8b0a9b>] [<ce872fad>] [<ce8c72b0>]
[<ce99f089>] [<ce99a798>] [<c011a4d2>] [<c0110000>] [<c010abdd>] [<ce99f089>]
[<c010ad4e>] [<c0107ec0>] [<c010cf08>] [<c0107ec0>] [<c0107ee3>] [<c0107f47>]
[<c01060a7>]
Code: f3 a5 a8 02 74 02 66 a5 a8 01 74 01 a4 8d 3c 18 be 40 32 92
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
-----------------------------------------------------------------------------------
Message from kernel with symbols resolved: ksymoops < oops.txt
-----------------------------------------------------------------------------------
ksymoops 2.4.5 on i686 2.4.19-x1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.19-x1/ (default)
-m /boot/System.map-2.4.19-x1 (default)
Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.
Warning (compare_maps): mismatch on symbol V32U96eyeLocation , pctel says ce9e8f30, /lib/modules/2.4.19-x1/misc/pctel.o says ce9fee64. Ignoring /lib/modules/2.4.19-x1/misc/pctel.o entry
Unable to handle kernel paging request at virtual address ce999000
*pde = 0df71067
Oops: 0000
CPU: 0
EIP: 1010:[<ce8c7573>] Tainted: P
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010003
eax: fff8e71f ebx: ce914c68 ecx: 3ffe3060 edx: 000733ad
esi: ce998ffd edi: ce917204 ebp: 0000001b esp: c0269ef8
ds: 1018 es: 1018 ss: 1018
Process swapper (pid: 0, stackpage=c0269000)
Stack: cb7666c0 04000001 0000000b c0269fac ce8f8ca0 ce8ffc60 3f666666 037f0001
cb7666c0 04000001 0000000b ce8b0a9b cb7666c0 cb7666c0 ce872fad ce8c72b0
0000000b ce99f089 c0269fac ce99a798 cb7666c0 04000001 0000000b c0269fac
Call Trace: [<ce8f8ca0>] [<ce8ffc60>] [<ce8b0a9b>] [<ce872fad>] [<ce8c72b0>]
[<ce99f089>] [<ce99a798>] [<c011a4d2>] [<c0110000>] [<c010abdd>] [<ce99f089>]
[<c010ad4e>] [<c0107ec0>] [<c010cf08>] [<c0107ec0>] [<c0107ee3>] [<c0107f47>]
[<c01060a7>]
Code: f3 a5 a8 02 74 02 66 a5 a8 01 74 01 a4 8d 3c 18 be 40 32 92
>>EIP; ce8c7573 <[reiserfs].bss.end+2bb4/af6a1> <=====
>>eax; fff8e71f <END_OF_CODE+314a345c/????>
>>ebx; ce914c68 <[reiserfs].bss.end+502a9/af6a1>
>>ecx; 3ffe3060 Before first symbol
>>edx; 000733ad Before first symbol
>>esi; ce998ffd <[pctel]class1_online+409/8d0>
>>edi; ce917204 <[reiserfs].bss.end+52845/af6a1>
>>esp; c0269ef8 <init_task_union+1ef8/2000>
Trace; ce8f8ca0 <[reiserfs].bss.end+342e1/af6a1>
Trace; ce8ffc60 <[reiserfs].bss.end+3b2a1/af6a1>
Trace; ce8b0a9b <[reiserfs]leaf_cut_from_buffer+2df/404>
Trace; ce872fad <[scsi_mod]scsi_proc_info+11/c0>
Trace; ce8c72b0 <[reiserfs].bss.end+28f1/af6a1>
Trace; ce99f089 <[pctel]V34OrgHand+ef9/1a64>
Trace; ce99a798 <[pctel]initSys+6a8/1220>
Trace; c011a4d2 <bh_action+1a/40>
Trace; c0110000 <pci_bios_write_config_word+8/3c>
Trace; c010abdd <handle_IRQ_event+31/5c>
Trace; ce99f089 <[pctel]V34OrgHand+ef9/1a64>
Trace; c010ad4e <do_IRQ+72/b4>
Trace; c0107ec0 <default_idle+0/28>
Trace; c010cf08 <call_do_IRQ+5/d>
Trace; c0107ec0 <default_idle+0/28>
Trace; c0107ee3 <default_idle+23/28>
Trace; c0107f47 <cpu_idle+3f/54>
Trace; c01060a7 <rest_init+27/28>
Code; ce8c7573 <[reiserfs].bss.end+2bb4/af6a1>
00000000 <_EIP>:
Code; ce8c7573 <[reiserfs].bss.end+2bb4/af6a1> <=====
0: f3 a5 repz movsl %ds:(%esi),%es:(Мi) <=====
Code; ce8c7575 <[reiserfs].bss.end+2bb6/af6a1>
2: a8 02 test $0x2,%al
Code; ce8c7577 <[reiserfs].bss.end+2bb8/af6a1>
4: 74 02 je 8 <_EIP+0x8> ce8c757b <[reiserfs].bss.end+2bbc/af6a1>
Code; ce8c7579 <[reiserfs].bss.end+2bba/af6a1>
6: 66 a5 movsw %ds:(%esi),%es:(Мi)
Code; ce8c757b <[reiserfs].bss.end+2bbc/af6a1>
8: a8 01 test $0x1,%al
Code; ce8c757d <[reiserfs].bss.end+2bbe/af6a1>
a: 74 01 je d <_EIP+0xd> ce8c7580 <[reiserfs].bss.end+2bc1/af6a1>
Code; ce8c757f <[reiserfs].bss.end+2bc0/af6a1>
c: a4 movsb %ds:(%esi),%es:(Мi)
Code; ce8c7580 <[reiserfs].bss.end+2bc1/af6a1>
d: 8d 3c 18 lea (Йx,Кx,1),Мi
Code; ce8c7583 <[reiserfs].bss.end+2bc4/af6a1>
10: be 40 32 92 00 mov $0x923240,%esi
<0>Kernel panic: Aiee, killing interrupt handler!
2 warnings issued. Results may not be reliable.
-----------------------------------------------------------------------------------
6.
7. Enviroment
7.1 Software: sh /usr/src/linux/scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux PCTELXANDROS 2.4.19-x1 #1 Mon Sep 23 22:48:11 EDT 2002 i686 unknown
Gnu C 2.95.4
Gnu make 3.79.1
util-linux 2.11n
mount 2.11n
modutils 2.4.15
e2fsprogs 1.27
pcmcia-cs 3.2.0
PPP 2.4.1
Linux C Library 2.2.5
Dynamic linker (ldd) 2.2.5
Procps 2.0.7
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 2.0.11
Modules Loaded autofs parport_pc lp ide-cd serial isa-pnp sd_mod ide-floppy ide-tape ptserial pctel reiserfs nls_iso8859-1 nls_cp437 usb-uhci sr_mod cdrom ide-scsi scsi_mod via-rhine mii floppy parport mousedev keybdev hid usbcore input rtc
7.2 Procesor information: cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 1
model name : Intel(R) Pentium(R) 4 CPU 1.50GHz
stepping : 2
cpu MHz : 1500.096
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 2994.99
7.3 Module information: cat /proc/modules
autofs 8900 2 (autoclean)
parport_pc 24968 1 (autoclean)
lp 6368 0 (autoclean)
ide-cd 26848 0 (autoclean)
serial 42368 0 (autoclean)
isa-pnp 28028 0 (autoclean) [serial]
sd_mod 10172 0 (autoclean) (unused)
ide-floppy 11712 0 (autoclean)
ide-tape 48704 0 (autoclean)
ptserial 38016 0
pctel 1230144 0 [ptserial]
reiserfs 158144 1 (autoclean)
nls_iso8859-1 2880 1 (autoclean)
nls_cp437 4384 1 (autoclean)
usb-uhci 20964 0 (unused)
sr_mod 13688 0
cdrom 27456 0 [ide-cd sr_mod]
ide-scsi 7552 0
scsi_mod 50700 3 [sd_mod sr_mod ide-scsi]
via-rhine 11716 1
mii 1104 0 [via-rhine]
floppy 45888 0
parport 22976 1 [parport_pc lp]
mousedev 3872 0 (unused)
keybdev 1664 0 (unused)
hid 18144 0 (unused)
usbcore 54976 1 [usb-uhci hid]
input 3328 0 [mousedev keybdev hid]
rtc 5916 0 (autoclean)
7.4 Loaded driver and hardware information: cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0378-037a : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
d800-d8ff : VIA Technologies, Inc. VT6102 [Rhine-II]
d800-d8ff : via-rhine
dc00-dc1f : VIA Technologies, Inc. UHCI USB
dc00-dc1f : usb-uhci
e000-e01f : VIA Technologies, Inc. UHCI USB (#2)
e000-e01f : usb-uhci
e400-e41f : VIA Technologies, Inc. UHCI USB (#3)
e400-e41f : usb-uhci
e800-e8ff : VIA Technologies, Inc. VT8233 AC97 Audio Controller
ec00-ecff : VIA Technologies, Inc. AC97 Modem Controller
fc00-fc0f : VIA Technologies, Inc. Bus Master IDE
fc00-fc07 : ide0
fc08-fc0f : ide1
cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-0dfeffff : System RAM
00100000-00201367 : Kernel code
00201368-0026638f : Kernel data
0dff0000-0dff7fff : ACPI Tables
0dff8000-0dffffff : ACPI Non-volatile Storage
cfb00000-dfbfffff : PCI Bus #01
d0000000-d7ffffff : PCI device 5333:8d04 (S3 Inc.)
dfd00000-dfefffff : PCI Bus #01
dfe80000-dfefffff : PCI device 5333:8d04 (S3 Inc.)
dfffff00-dfffffff : VIA Technologies, Inc. VT6102 [Rhine-II]
dfffff00-dfffffff : via-rhine
e8000000-ebffffff : PCI device 1106:3148 (VIA Technologies, Inc.)
fff80000-ffffffff : reserved
7.5 PCI information: lspci -vvv
00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 3148
Subsystem: VIA Technologies, Inc.: Unknown device 0000
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 8
Region 0: Memory at e8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: dfd00000-dfefffff
Prefetchable memory behind bridge: cfb00000-dfbfffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
Subsystem: VIA Technologies, Inc.: Unknown device 0000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. Bus Master IDE
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 14
Region 4: I/O ports at fc00 [size=16]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b) (prog-if 00 [UHCI])
Subsystem: Unknown device 0925:1234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at dc00 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b) (prog-if 00 [UHCI])
Subsystem: Unknown device 0925:1234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at e000 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.4 USB Controller: VIA Technologies, Inc. UHCI USB (rev 1b) (prog-if 00 [UHCI])
Subsystem: Unknown device 0925:1234
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at e400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 30)
Subsystem: VIA Technologies, Inc.: Unknown device 4161
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin C routed to IRQ 11
Region 0: I/O ports at e800 [size=256]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:11.6 Communication controller: VIA Technologies, Inc. AC97 Modem Controller (rev 70)
Subsystem: SILICON Laboratories: Unknown device 4c21
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin C routed to IRQ 11
Region 0: I/O ports at ec00 [size=256]
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:12.0 Ethernet controller: VIA Technologies, Inc. Ethernet Controller (rev 70)
Subsystem: VIA Technologies, Inc.: Unknown device 0102
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (750ns min, 2000ns max), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at d800 [size=256]
Region 1: Memory at dfffff00 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
01:00.0 VGA compatible controller: S3 Inc.: Unknown device 8d04 (prog-if 00 [VGA])
Subsystem: S3 Inc.: Unknown device 8d04
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (1000ns min, 63750ns max), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at dfe80000 (32-bit, non-prefetchable) [size=512K]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at dfe70000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW- Rate=<none>
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
7.6 SCSI information: cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: _NEC Model: NR-7700A Rev: 1.25
Type: CD-ROM ANSI SCSI revision: 02
7.7 Other information:
PCTel modem driver version 0.9.6
The hardware is very stable and reliable.
Never I got my system freezed except when I use this driver for PCTel modem.
--
-----------------------------------------------------------
Юрий