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SubjectPROBLEM: Linux reboot when using Deflate with compression set to 8
Hello,

I think that I have found a bug, and as I haven't found any information about this problem on the
web, so I post this problem.
I think I have post all necessary info. If you need more info, fell free to contact me.

[1.] One line summary of the problem:

Linux reboot when using Deflate with compression set to 8

[2.] Full description of the problem/report:

When we use pppd with deflate compression enabled and to to the min for compressor (8), after a
short use of the session (read of a web page) linux reboot.
I haven't find any message or log about it.

[3.] Keywords (i.e., modules, networking, kernel):

kernel, modules, ppp, deflate

[4.] Kernel version (from /proc/version):

I have try this on two version that I can't upgrade because there are used for other development.

[1st computer]
Linux version 2.2.5-22 (root@porky.devel.redhat.com) (gcc version egcs-2.91.66 19990314/Linux
(egcs-1.1.2 release)) #1 Wed Jun 2 09:17:03 EDT 1999

[2nd computer]
Linux version 2.2.12-20 (root@porky.devel.redhat.com) (gcc version egcs-2.91.66 19990314/Linux
(egcs-1.1.2 release)) #1 Mon Sep 27 10:25:54 EDT 1999

[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)

I haven't find Oops message

[6.] A small shell script or example program which triggers the
problem (if possible)

Set pppd options :
deflate 8,15

connect and use it.

[7.] Environment

[1st computer]
RH 6.0 PII266 128Mo RAM

[2nd computer]
RH 6.1 P120 80Mo RAM

[7.1.] Software (add the output of the ver_linux script here)

[1st computer]
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux rapanui.eur.palm.com 2.2.5-22 #1 Wed Jun 2 09:17:03 EDT 1999 i686 unknown
Kernel modules 2.1.121
Gnu C egcs-2.91.66
Binutils 2.9.1.0.23
Linux C Library 2.1.1
Dynamic linker ldd (GNU libc) 2.1.1
Procps 2.0.2
Mount 2.9o
Net-tools (1999-04-20)
Kbd [option...]
Sh-utils 1.16
Modules Loaded ppp_deflate bsd_comp ppp slhc sound soundlow soundcore 3c59x

[2nd computer]
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux rapanui2.mtp.eur.palm.com 2.2.12-20 #1 Mon Sep 27 10:25:54 EDT 1999 i586 unknown
Kernel modules 2.1.121
Gnu C egcs-2.91.66
Binutils 2.9.1.0.24
Linux C Library 2.1.2
Dynamic linker ldd (GNU libc) 2.1.2
Procps 2.0.4
Mount 2.9u
Net-tools 1.53
Console-tools 1999.03.02
Sh-utils 2.0
Sh-utils Parker.
Sh-utils
Sh-utils Inc.
Sh-utils NO
Sh-utils PURPOSE.
Modules Loaded ppp_deflate ppp slhc 3c59x

[7.2.] Processor information (from /proc/cpuinfo):

[1st computer]
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 3
model name : Pentium II (Klamath)
stepping : 3
cpu MHz : 266.618732
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_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 mmx
bogomips : 266.24

[2nd computer]
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 2
model name : Pentium 75 - 200
stepping : 6
cpu MHz : 119.754428
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : yes
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 47.82

[7.3.] Module information (from /proc/modules):

[1st computer]
ppp_deflate 40548 0 (autoclean)
bsd_comp 3632 0 (autoclean)
ppp 18316 0 (autoclean) [ppp_deflate bsd_comp]
slhc 4328 0 (autoclean) [ppp]
sound 57208 0 (autoclean) (unused)
soundlow 300 0 (autoclean) [sound]
soundcore 2372 3 (autoclean) [sound]
3c59x 18920 1 (autoclean)

[2nd computer]
ppp_deflate 40548 2 (autoclean)
ppp 20012 2 (autoclean) [ppp_deflate]
slhc 4328 1 (autoclean) [ppp]
3c59x 19112 1 (autoclean)

[7.4.] SCSI information (from /proc/scsi/scsi)

Attached devices: none

[7.5.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):

my options file for pppd :

[1st computer]
### GENERAL OPTIONS ###
debug
debug
debug
debug
debug
kdebug 1
usehostname
nodetach
nodefaultroute
proxyarp
netmask 255.255.255.0

### PPP OPTIONS ###
mru 1500
mtu 1500
asyncmap 000A0000

### Compression Options ###
vj-max-slots 16
bsdcomp 15,15
deflate 8,8

### Authentication OPTIONS ###
require-chap
require-pap

### IPCP options ###
ms-dns 172.17.21.103
ms-dns 64.28.144.1

[2nd computer]
### GENERAL OPTIONS ###
debug
debug
debug
debug
debug
kdebug 1
usehostname
nodetach
nodefaultroute
proxyarp
netmask 255.255.255.0

### PPP OPTIONS ###
mru 3000
mtu 3000
asyncmap 0FFFFFFF

### Compression Options ###
nobsdcomp
deflate 8,15

### Authentication OPTIONS ###
require-chap
require-pap

### IPCP options ###
ms-dns 172.17.21.103
ms-dns 64.28.144.1

[X.] Other notes, patches, fixes, workarounds:

--
-----------------------------------------------
Danis Frederic PALM COMPUTING EUROPE SARL
Software engineer
Mail : mailto:frederic_danis@palm.com
-----------------------------------------------
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