I think I discovered some kind of bug:
Linux chrashes sometimes - I have an Atari running STinG (an tcp/ip stack for
TOS). It#s connected to my second ethernet device. I have IP-Masquerading
configured on my Linux Box nad when I use e.g. an http client on the atari,
I get sometimes messages like the following:
+48/64] [vsprintf+857/1056] [ip_fw_demasquerade+786/1012] [ip_options_compile+262/1496] [ip_forward+185/1960] [inet_select+2/44] [ip_free+69/160]
Apr 8 17:40:56 deepthought kernel: [dev_ioctl+224/504] [sys_adjtimex+695/1060] [lcall7+63/96] [do_page_fault+593/712] [do_exit+7/488] [die_if_kernel+515/732] [<05000000>] [<04800000>]
Apr 8 17:40:56 deepthought kernel: [burst_bridge+268/392] [do_page_fault+322/712] [mem_init+212/488] [v86_signal_return+48/64] [vsprintf+852/1056] [ip_fw_demasquerade+786/1012] [ip_options_compile+262/1496] [ip_forward+185/1960]
Apr 8 17:40:56 deepthought kernel: [inet_select+2/44] [ip_free+69/160] [dev_ioctl+224/504] [sys_adjtimex+695/1060] [lcall7+63/96] [will_become_orphaned_pgrp+18/92] [exit_notify+432/472] [die_if_kernel+515/732]
Apr 8 17:40:56 deepthought kernel: [<05000000>] [<04800000>] [burst_bridge+268/392] [do_page_fault+322/712] [mem_init+212/488] [v86_signal_return+48/64] [vsprintf+867/1056] [ip_fw_demasquerade+786/1012]
Apr 8 17:40:56 deepthought kernel: [ip_options_compile+262/1496] [ip_forward+185/1960] [dev_ioctl+224/504] [sys_adjtimex+695/1060] [lcall7+63/96] [exit_thread+1/76] [exit_notify+404/472] [die_if_kernel+515/732]
Apr 8 17:40:56 deepthought kernel: [<05000000>] [<04800000>] [burst_bridge+268/392] [do_page_fault+322/712] [mem_init+212/488] [v86_signal_return+48/64] [vsprintf+862/1056] [ip_fw_demasquerade+786/1012]
Apr 8 17:40:56 deepthought kernel: [ip_options_compile+262/1496]
Apr 8 17:40:56 deepthought kernel: Code: 8b 5e 0c 11 d8 8b 5e 10 11 d8 8b 5e 14 11 d8 8b 5e 18 11 d8
Apr 8 17:40:56 deepthought kernel: Aiee, killing interrupt handler
Of course, this is caused by the client, but Linux shouldn# crash whatever a
http client sends :(
Matthias
the tcpdump of the interface:
17:40:53.471257 deepthought.61079 > 194.230.42.124.http: . ack 8435 win 5000
17:40:53.551257 194.230.42.124.http > marina.1188: . 8435:9895(1460) ack 155 win 8760 (DF)
17:40:53.591257 deepthought.61079 > 194.230.42.124.http: . ack 9895 win 3540
17:40:53.591257 deepthought.61079 > 194.230.42.124.http: . ack 9895 win 5000
17:40:53.681257 194.230.42.124.http > marina.1188: . 9895:11355(1460) ack 155 win 8760 (DF)
17:40:53.741257 deepthought.61079 > 194.230.42.124.http: . ack 11355 win 3540
17:40:53.741257 deepthought.61079 > 194.230.42.124.http: . ack 11355 win 5000
17:40:53.941257 194.230.42.124.http > marina.1188: . 11355:12815(1460) ack 155 win 8760 (DF)
17:40:53.981257 deepthought.61079 > 194.230.42.124.http: . ack 12815 win 3540
17:40:53.981257 deepthought.61079 > 194.230.42.124.http: . ack 12815 win 5000
17:40:54.071257 194.230.42.124.http > marina.1188: . 12815:14275(1460) ack 155 win 8760 (DF)
17:40:54.101257 deepthought.61079 > 194.230.42.124.http: . ack 14275 win 3540
17:40:54.101257 deepthought.61079 > 194.230.42.124.http: . ack 14275 win 5000
17:40:54.211257 194.230.42.124.http > marina.1188: . 14275:15735(1460) ack 155 win 8760 (DF)
17:40:54.251257 deepthought.61079 > 194.230.42.124.http: . ack 15735 win 3540
17:40:54.251257 deepthought.61079 > 194.230.42.124.http: . ack 15735 win 5000
17:40:54.331257 194.230.42.124.http > marina.1188: FP 15735:16940(1205) ack 155 win 8760 (DF)
17:40:54.371257 deepthought.61079 > 194.230.42.124.http: . ack 16941 win 3795
17:40:54.371257 deepthought.61079 > 194.230.42.124.http: . ack 16941 win 5000
17:40:54.401257 deepthought.61079 > 194.230.42.124.http: F 154:154(0) ack 16941 win 5000
17:40:54.431257 deepthought.61079 > 194.230.42.124.http: F 154:154(0) ack 16941 win 5000
17:40:54.581257 deepthought.61079 > 194.230.42.124.http: F 154:154(0) ack 16941 win 5000
17:40:54.581257 194.230.42.124.http > marina.1188: . ack 156 win 8760 (DF)
17:40:55.301257 deepthought.61080 > 194.230.42.124.http: S 41258580:41258580(0) win 5000 <mss 1460>
17:40:55.421257 deepthought.61080 > 194.230.42.124.http: S 41258580:41258580(0) win 5000 <mss 1460>
17:40:55.501257 194.230.42.124.http > marina.1189: S 2777115045:2777115045(0) ack 41258581 win 8760 <mss 1460> (DF)
17:40:55.541257 deepthought.61080 > 194.230.42.124.http: . ack 2777115046 win 5000
17:40:55.541257 deepthought.61080 > 194.230.42.124.http: P 0:153(153) ack 1 win 5000
17:40:55.571257 deepthought.61080 > 194.230.42.124.http: P 0:153(153) ack 1 win 5000
17:40:55.651257 194.230.42.124.http > marina.1189: S 2777115045:2777115045(0) ack 41258581 win 8760 <mss 1460> (DF)
17:40:55.861257 194.230.42.124.http > marina.1189: . ack 154 win 8607 (DF)
17:40:55.871257 194.230.42.124.http > marina.1189: . ack 154 win 8760 (DF)
17:40:55.901257 deepthought.61080 > 194.230.42.124.http: P 153:155(2) ack 1 win 5000
17:40:55.991257 deepthought.61080 > 194.230.42.124.http: P 153:155(2) ack 1 win 5000
17:40:56.161257 194.230.42.124.http > marina.1189: P 1:243(242) ack 156 win 8760 (DF)
17:40:56.161257 194.230.42.124.http > marina.1189: F 243:243(0) ack 156 win 8760 (DF)
17:40:56.201257 deepthought.61080 > 194.230.42.124.http: . ack 243 win 4758
17:40:56.201257 deepthought.61080 > 194.230.42.124.http: . ack 244 win 4758
17:40:56.201257 deepthought.61080 > 194.230.42.124.http: . ack 244 win 5000
17:40:56.201257 deepthought.61080 > 194.230.42.124.http: F 155:155(0) ack 244 win 5000
17:40:56.201257 194.230.42.124.http > marina.1189: . ack 156 win 8760 (DF)
17:40:56.261257 truncated-tcp 19
17:40:56.521257 194.230.42.124.http > marina.1189: . ack 157 win 8760 (DF)
17:40:56.561257 deepthought.61081 > 194.230.42.124.http: S 41508632:41508632(0) win 5000 <mss 1460>
17:40:56.681257 deepthought.61081 > 194.230.42.124.http: S 41508632:41508632(0) win 5000 <mss 1460>
17:40:56.801257 deepthought.61081 > 194.230.42.124.http: S 41508632:41508632(0) win 5000 <mss 1460>
17:40:56.901257 194.230.42.124.http > marina.1190: S 2777385769:2777385769(0) ack 41508633 win 8760 <mss 1460> (DF)
17:40:56.951257 deepthought.61081 > 194.230.42.124.http: . ack 2777385770 win 5000
17:40:56.951257 deepthought.61081 > 194.230.42.124.http: P 0:152(152) ack 1 win 5000
17:40:57.071257 194.230.42.124.http > marina.1190: S 2777385769:2777385769(0) ack 41508633 win 8760 <mss 1460> (DF)
17:40:57.131257 deepthought.61081 > 194.230.42.124.http: . ack 1 win 5000
17:40:57.221257 deepthought.61081 > 194.230.42.124.http: P 0:154(154) ack 1 win 5000
17:40:57.241257 194.230.42.124.http > marina.1190: S 2777385769:2777385769(0) ack 41508633 win 8760 <mss 1460> (DF)
17:40:57.291257 194.230.42.124.http > marina.1190: . ack 153 win 8608 (DF)
17:40:57.341257 deepthought.61081 > 194.230.42.124.http: . ack 1 win 5000
17:40:57.781257 194.230.42.124.http > marina.1190: P 1:1461(1460) ack 155 win 8760 (DF)
17:40:57.821257 deepthought.61081 > 194.230.42.124.http: . ack 1461 win 3540
17:40:57.821257 deepthought.61081 > 194.230.42.124.http: . ack 1461 win 5000
17:40:58.271257 194.230.42.124.http > marina.1190: . 1461:2921(1460) ack 155 win 8760 (DF)
17:40:58.301257 194.230.42.124.http > marina.1190: P 2921:4097(1176) ack 155 win 8760 (DF)
17:40:58.331257 deepthought.61081 > 194.230.42.124.http: . ack 2921 win 3540
17:40:58.331257 deepthought.61081 > 194.230.42.124.http: . ack 2921 win 5000
17:40:58.361257 deepthought.61081 > 194.230.42.124.http: . ack 4097 win 3824
17:40:58.361257 deepthought.61081 > 194.230.42.124.http: . ack 4097 win 5000
17:40:58.851257 194.230.42.124.http > marina.1190: . 4097:5557(1460) ack 155 win 8760 (DF)
17:40:58.901257 deepthought.61081 > 194.230.42.124.http: . ack 5557 win 3540
17:40:58.901257 deepthought.61081 > 194.230.42.124.http: . ack 5557 win 5000
17:40:58.961257 194.230.42.124.http > marina.1190: . 7017:8435(1418) ack 155 win 8760 (DF)
17:40:59.301257 194.230.42.124.http > marina.1190: . 8435:9895(1460) ack 155 win 8760 (DF)
--
Matthias Bilger # http://wwwcip.rus.uni-stuttgart.de/~tpe10589
zuhause wieder unter: http://deepthought.wh.uni-stuttgart.de/
Billman@studbox.uni-stuttgart.de # 0177/2296419
You'll learn something about men and women -- the way they're supposed
to be. Caring for each other, being happy with each other, being good
to each other. That's what we call love. You'll like that a lot.
-- Kirk, "The Apple", stardate 3715.6
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