Kernel Oops in 2.0.6 and 2.0.3

Andreas Koppenhoefer (
16 Jul 1996 11:21:50 +0200


Hello Dear,

every night my linux host dials up the university and starts news and
mail transfer. About once per week pppd crashes while being connected
for some time with the following Oops. After this diald and pppd is no
longer able to start a new connection (pppd keeps failing with 'Fatal
signal 11'). After several dialup retries (triggered by diald) linux
crashes or hangs followed by panic reboot or software watchdog reboot.
After reboot everything is ok again. Up to now this had happened with
Linux 2.0.3 and 2.0.6.

Anybody else seen this? What's wrong? Tell me, if you need more info.

Thanks in advance.

- - Andreas

PS: This kernel oops is from Linux 2.0.6; ppp, slip and slhc loaded as
modules (without kerneld); bsd_comp module not used.

pppd[627]: pppd 2.2.0 started by dialout, uid 0
pppd[627]: Connect: ppp0 <--> /dev/ttyS3
kernel: Unable to handle kernel paging request at virtual address e07d2091
kernel: current->tss.cr3 = 00101000, ^\r3 = 00101000
kernel: *pde = 00000000
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[slhc_compress_R5d6838a9+208/1728]
kernel: EFLAGS: 00010246
kernel: eax: 00000010 ebx: 005d5068 ecx: 01248018 edx: 00000005
kernel: esi: 005d507c edi: 005d5068 ebp: 207d207d esp: 001c73a0
kernel: ds: 0018 es: 0018 fs: 002b gs: 0018 ss: 0018
kernel: Process swapper (pid: 0, process nr: 0, stackpage=001c5564)
kernel: Stack: 005d541c 00000028 005d54ec 00000021 0057e0cc 0057e0cc 005d541c 005d541c
kernel: 0172c410 00000246 00000246 005d507c 005d5068 001c73e0 00000028 00000000
kernel: 00d347e4 012f9808 00000246 00b87000 0204b478 01248018 005d5068 00000028
kernel: Call Trace: [ppp_dev_xmit_ip+372/480] [ppp_dev_xmit+232/272] [do_dev_queue_xmit+404/464] [dev_tint+106/160] [dev_transmit+31/48] [net_bh+9/288] [do_bottom_half+59/112]
kernel: [schedule+58/688] [sys_idle+108/128] [sys_idle+124/128] [system_call+82/128] [init+0/544] [init_status+808/1376] [start_kernel+375/400] [it_real_fn+0/80]
kernel: [schedule+588/688]
kernel: Code: 8b 45 14 8b 4c 24 30 39 41 0c 75 13 8b 45 18 39 41 10 75 0b
kernel: Aiee, killing interrupt handler
kernel: kfree of non-kmalloced memory: 001c75ac, next= 00090001, order=593404
kernel: kfree of non-kmalloced memory: 001c759c, next= 00090001, order=593404
kernel: kfree of non-kmalloced memory: 001c7ab0, next= 00090001, order=593404
kernel: idle task may not sleep
last message repeated 4 times
pppd[627]: Fatal signal 11
route: ppp0 down dst:* gw:* mask:* metric:0, flags:00
kernel: kfree of non-kmalloced memory: 0057d810, next= 00000000, order=6
kernel: kfree of non-kmalloced memory: 0057e018, next= 7d207d7a, order=2099281184
pppd[920]: pppd 2.2.0 started by dialout, uid 0
pppd[920]: Connect: ppp0 <--> /dev/ttyS3
pppd[920]: Fatal signal 11

Version: 2.6.2i
Comment: Processed by Mailcrypt 3.3, an Emacs/PGP interface


Andreas Koppenhoefer, Student der Universitaet Stuttgart, BR Deutschland
Franz-Schubert-Str. 2, 97616 Bad Neustadt; Phone +49 9771 7943, Fax/Data 7947
<>; PGP-Key available at
URL <>