pppd Crashes Serial Port
I have had a persistent problem ever since I started using debian a few
months ago.
When I'm doing something with pppd up and moving data ... netscaping,
ftping, lynxing, etc. the mouse locks up (well it doesn't stop entirely
but acts like it is swamped. There is a long delay before mouse clicks
are registered and the cursor jumps when it does finally decide to
move.) and the data I'm trying to get over the ppp connection stalls.
The frequency of crashing seems random. Sometimes it happens after I'm
online for 15 seconds, sometimes after I've been on line for half an
hour. To get the mouse working again, I have to reboot.
I've checked the IRQ settings for the mouse port (serial 0, IRQ 4) and
the modem port (serial 1, IRQ 3). There appears to be no conflict. This
is reflected in my startup messages:
Nov 12 16:00:17 debian kernel: Serial driver version 4.13 with no serial
options enabled
Nov 12 16:00:17 debian kernel: tty00 at 0x03f8 (irq = 4) is a 16550A
Nov 12 16:00:17 debian kernel: tty01 at 0x02f8 (irq = 3) is a 16550A
(Thanks to John Hasler for pointing this out as a potential problem)
I've attached the contents of /var/log/messages from the crash through
system reboot.
The console displays the following messages from the startup of pppd to
the mouse lock up (also attached):
Nov 12 15:48:40 debian pppd[279]: Connect: ppp0 <--> /dev/ttyS1
Nov 12 15:48:42 debian pppd[279]: local IP address 168.122.14.85
Nov 12 15:48:42 debian pppd[279]: remote IP address 168.122.14.3
Nov 12 15:58:16 debian kernel: segment not present: 0011
Nov 12 15:58:16 debian kernel: CPU: 0
Nov 12 15:58:16 debian kernel: EIP: 0010:[sys_idle+91/112]
Nov 12 15:58:16 debian kernel: EFLAGS: 00010246
Nov 12 15:58:16 debian kernel: eax: 00000001 ebx: 0001644f ecx:
fffffc18 edx: 0024dfc8
Nov 12 15:58:16 debian kernel: esi: 0024d7f0 edi: 00000000 ebp:
0000010e esp: 0024d7a4
Nov 12 15:58:16 debian kernel: ds: 0018 es: 0018 fs: 002b gs:
0018 ss: 0018
Nov 12 15:58:16 debian kernel: Process swapper (pid: 0, process nr: 0,
stackpage=0024b814)
Nov 12 15:58:16 debian kernel: Stack: 0024dfc8 0010ac15 00000100
0010976c 0024f744 0024d7f0 00000000 0000010e
Nov 12 15:58:16 debian kernel: ffffffda 00000018 00000018
00000018 00000018 00000070 00109333 00000010
Nov 12 15:58:16 debian kernel: 00000246 00109527 00000000
756e6547 0009e200 00101ffc 00000000 0024aba8
Nov 12 15:58:16 debian kernel: Call Trace: [system_call+85/124]
[init+0/864] [start_kernel+487/500]
Nov 12 15:58:16 debian kernel: Code: f4 83 3d 00 b8 24 00 00 74 02 31 db
e8 4c 93 00 00 eb b2 89
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024d85c,
next= 00000000, order=0
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024d84c,
next= 00000000, order=0
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024dd60,
next= 00000000, order=0
Nov 12 15:58:16 debian kernel: idle task may not sleep
Nov 12 15:58:16 debian last message repeated 4 times
If you need particulars about my system let me know, I'll be happy to
supply them.
I'm running debian 2.1 r2 on a Pentium 90 (Zeos Pantera).
Thanks for the help, it's a real bummer to have to boot into win95 to
download debs!
Best regards,
Jeff Sciortino
Nov 12 15:48:40 debian pppd[279]: Connect: ppp0 <--> /dev/ttyS1
Nov 12 15:48:42 debian pppd[279]: local IP address 168.122.14.85
Nov 12 15:48:42 debian pppd[279]: remote IP address 168.122.14.3
Nov 12 15:58:16 debian kernel: segment not present: 0011
Nov 12 15:58:16 debian kernel: CPU: 0
Nov 12 15:58:16 debian kernel: EIP: 0010:[sys_idle+91/112]
Nov 12 15:58:16 debian kernel: EFLAGS: 00010246
Nov 12 15:58:16 debian kernel: eax: 00000001 ebx: 0001644f ecx: fffffc18 edx: 0024dfc8
Nov 12 15:58:16 debian kernel: esi: 0024d7f0 edi: 00000000 ebp: 0000010e esp: 0024d7a4
Nov 12 15:58:16 debian kernel: ds: 0018 es: 0018 fs: 002b gs: 0018 ss: 0018
Nov 12 15:58:16 debian kernel: Process swapper (pid: 0, process nr: 0, stackpage=0024b814)
Nov 12 15:58:16 debian kernel: Stack: 0024dfc8 0010ac15 00000100 0010976c 0024f744 0024d7f0 00000000 0000010e
Nov 12 15:58:16 debian kernel: ffffffda 00000018 00000018 00000018 00000018 00000070 00109333 00000010
Nov 12 15:58:16 debian kernel: 00000246 00109527 00000000 756e6547 0009e200 00101ffc 00000000 0024aba8
Nov 12 15:58:16 debian kernel: Call Trace: [system_call+85/124] [init+0/864] [start_kernel+487/500]
Nov 12 15:58:16 debian kernel: Code: f4 83 3d 00 b8 24 00 00 74 02 31 db e8 4c 93 00 00 eb b2 89
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024d85c, next= 00000000, order=0
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024d84c, next= 00000000, order=0
Nov 12 15:58:16 debian kernel: kfree of non-kmalloced memory: 0024dd60, next= 00000000, order=0
Nov 12 15:58:16 debian kernel: idle task may not sleep
Nov 12 15:58:16 debian last message repeated 4 times
Nov 12 15:58:26 debian pppd[279]: Terminating on signal 15.
Nov 12 15:58:43 debian Font Server[184]: terminating
Nov 12 15:58:44 debian kernel: Kernel logging (proc) stopped.
Nov 12 15:58:44 debian kernel: Kernel log daemon terminating.
Nov 12 15:58:44 debian exiting on signal 15
Nov 12 16:00:16 debian syslogd 1.3-3#31: restart.
Nov 12 16:00:16 debian kernel: klogd 1.3-3#31, log source = /proc/kmsg started.
Nov 12 16:00:16 debian kernel: Inspecting /boot/System.map-2.0.36
Nov 12 16:00:17 debian kernel: Loaded 5716 symbols from /boot/System.map-2.0.36.
Nov 12 16:00:17 debian kernel: Symbols match kernel version 2.0.36.
Nov 12 16:00:17 debian kernel: Loaded 46 symbols from 14 modules.
Nov 12 16:00:17 debian kernel: Memory: sized by int13 0e801h
Nov 12 16:00:17 debian kernel: Console: 16 point font, 400 scans
Nov 12 16:00:17 debian kernel: Console: colour VGA+ 80x25, 1 virtual console (max 63)
Nov 12 16:00:17 debian kernel: pcibios_init : BIOS32 Service Directory structure at 0x000fff70
Nov 12 16:00:17 debian kernel: pcibios_init : BIOS32 Service Directory entry at 0xfda78
Nov 12 16:00:17 debian kernel: pcibios_init : PCI BIOS revision 2.00 entry at 0xfdad9
Nov 12 16:00:17 debian kernel: Probing PCI hardware.
Nov 12 16:00:17 debian kernel: Calibrating delay loop.. ok - 35.94 BogoMIPS
Nov 12 16:00:17 debian kernel: Memory: 78692k/81920k available (1136k kernel code, 384k reserved, 1708k data)
Nov 12 16:00:17 debian kernel: Swansea University Computer Society NET3.035 for Linux 2.0
Nov 12 16:00:17 debian kernel: NET3: Unix domain sockets 0.13 for Linux NET3.035.
Nov 12 16:00:17 debian kernel: Swansea University Computer Society TCP/IP for NET3.034
Nov 12 16:00:17 debian kernel: IP Protocols: IGMP, ICMP, UDP, TCP
Nov 12 16:00:17 debian kernel: VFS: Diskquotas version dquot_5.6.0 initialized^M
Nov 12 16:00:17 debian kernel: Checking 386/387 coupling... Hmm, FDIV bug i586 system
Nov 12 16:00:17 debian kernel: Checking 'hlt' instruction... Ok.
Nov 12 16:00:17 debian kernel: Intel Pentium with F0 0F bug - workaround enabled.
Nov 12 16:00:17 debian kernel: alias mapping IDT readonly ... ... done
Nov 12 16:00:17 debian kernel: Linux version 2.0.36 (root@gondor) (gcc version 2.7.2.3) #2 Sun Feb 21 15:55:27 EST 1999
Nov 12 16:00:17 debian kernel: Starting kswapd v 1.4.2.2
Nov 12 16:00:17 debian kernel: Real Time Clock Driver v1.09
Nov 12 16:00:17 debian kernel: tpqic02: Runtime config, $Revision: 0.4.1.5 $, $Date: 1994/10/29 02:46:13 $
Nov 12 16:00:17 debian kernel: tpqic02: DMA buffers: 20 blocks, at address 0x282600 (0x28254c)
Nov 12 16:00:17 debian kernel: Ramdisk driver initialized : 16 ramdisks of 4096K size
Nov 12 16:00:17 debian kernel: loop: registered device at major 7
Nov 12 16:00:17 debian kernel: ide0: buggy RZ1000 interface: disabled read-ahead
Nov 12 16:00:17 debian kernel: hda: Maxtor 91024U4, 9765MB w/2048kB Cache, CHS=1244/255/63
Nov 12 16:00:17 debian kernel: hdc: FX810T, ATAPI CDROM drive
Nov 12 16:00:17 debian kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Nov 12 16:00:17 debian kernel: ide1 at 0x170-0x177,0x376 on irq 15
Nov 12 16:00:17 debian kernel: Floppy drive(s): fd0 is 1.44M
Nov 12 16:00:17 debian kernel: FDC 0 is a post-1991 82077
Nov 12 16:00:17 debian kernel: md driver 0.36.3 MAX_MD_DEV=4, MAX_REAL=8
Nov 12 16:00:17 debian kernel: aha152x: BIOS test: passed, detected 0 controller(s)
Nov 12 16:00:17 debian kernel: Failed initialization of WD-7000 SCSI card!
Nov 12 16:00:17 debian kernel: scsi : 0 hosts.
Nov 12 16:00:17 debian kernel: scsi : detected total.
Nov 12 16:00:17 debian kernel: Partition check:
Nov 12 16:00:17 debian kernel: hda: [EZD] [remap 0->1] [1244/255/63] hda1 hda2 < hda5 hda6 hda7 hda8 hda9 > hda3
Nov 12 16:00:17 debian kernel: VFS: Mounted root (ext2 filesystem) readonly.
Nov 12 16:00:17 debian kernel: Unable to find swap-space signature
Nov 12 16:00:17 debian kernel: linear personality registered
Nov 12 16:00:17 debian kernel: Module inserted $Id: cdrom.c,v 0.8 1996/08/10 10:52:11 david Exp $
Nov 12 16:00:17 debian kernel: paride: version 1.02 installed
Nov 12 16:00:17 debian kernel: paride: comm registered as protocol 0
Nov 12 16:00:17 debian kernel: lp: Driver configured but no interfaces found.
Nov 12 16:00:17 debian kernel: Serial driver version 4.13 with no serial options enabled
Nov 12 16:00:17 debian kernel: tty00 at 0x03f8 (irq = 4) is a 16550A
Nov 12 16:00:17 debian kernel: tty01 at 0x02f8 (irq = 3) is a 16550A
Nov 12 16:00:17 debian kernel: CSLIP: code copyright 1989 Regents of the University of California
Nov 12 16:00:17 debian kernel: PPP: version 2.2.0 (dynamic channel allocation)
Nov 12 16:00:17 debian kernel: PPP Dynamic channel allocation code copyright 1995 Caldera, Inc.
Nov 12 16:00:17 debian kernel: PPP line discipline registered.
Nov 12 16:00:17 debian kernel: Unable to load NLS charset cp437(nls_cp437)
Nov 12 16:00:17 debian kernel: Unable to load NLS charset cp437(nls_cp437)
Nov 12 16:00:17 debian kernel: Unable to find swap-space signature
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