Messages in this thread | | | From | Richard Bouska <> | Date | Mon, 12 Jul 1999 11:11:40 +0200 (CEST) | Subject | Can kill any 2.2.x kernel (When compiled with address translation) |
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Hello,
I've got kernel panic in kernels 2.2.4 - 2.2.10 (those I've tested) on both gcc and egcs compiled kernels. This is possible that it does not work in the older kernels but those I've not tested.
I am using ip utility for seting up networking (NAT)
ip lin set lo up ip lin set eth0 up ip lin set eth1 up ip lin set eth2 up ip addr add 127.0.0.1/8 dev lo brd + scope host ip addr add 10.0.0.1/16 dev eth0 brd + ip addr add 10.1.0.1/24 dev eth1 brd + ip addr add 192.168.0.20/24 dev eth2 brd + ip route add 0.0.0.0/0 via 192.168.0.1 scope global
ip route add nat 192.168.0.23/32 via 10.0.0.23 ip rule add prio 32 from 10.0.0.23 nat 192.168.0.23
the 192.168- simulates for me external netowrk and the 10.0 the internal
Any ping -R through the NAT fiirewal causes oops. Othervise the configuration works well (traceroute , ping, ping -f tracepath - everithing work as it should.) The only ping -R is a devil.
For example when I try to ping -R from 10.0.0.23 to "internet" (In my example some computer on 192.168.x.y the kernel oopses.
Options used: -V (default) -o /lib/modules/2.2.10/ (default) -k /proc/ksyms (default) -l /proc/modules (default) -m /boot/System.map (specified) -c 1 (default)
Unable to handle kernel NULL pointer dereference at virtual address 0000008c current->tss.cr3 = 00101000, %cr3 = 00101000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c0166829>] EFLAGS: 00010246 eax: 00000000 ebx: 00000000 ecx: 00000000 edx: c0ffb320 esi: 0300010a edi: 000000fe ebp: c2dcf834 esp: c01d5e74 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 0, process nr: 0, stackpage=c01d5000) Stack: 00000002 c016955e 00000000 0300010a 000000fe c0152342 c01d5e9c c3d99ecc c3d99ecc 00000000 c3c5fd88 fe0aa920 c0ffb320 c01caaa0 c015664b c2dcf847 c2c81140 c3d99ecc c2dcf820 00000002 c01d5f00 c0155630 c2dcf820 c2c81140 Call Trace: [<c016955e>] [<c0152342>] [<c015664b>] [<c0155630>] [<c015577d>] [<c0145fdd>] [<c0154abd>] [<c01477ed>] [<c0115d41>] [<c0108c13>] [<c0107a70>] [<c0106281>] [<c0106000>] [<c01062a4>] [<c01079b4>] [<c0106000>] [<c010607b>] [<c0106000>] [<c0100176>] Code: 8b 81 8c 00 00 00 85 c0 74 7d 8b 50 04 eb 1c 31 c0 8a 42 1c
>>EIP: c0166829 <inet_select_addr+11/a0> Trace: c016955e <__fib_res_prefsrc+1a/20> Trace: c0152342 <ip_rt_get_source+42/74> Trace: c015664b <ip_forward_options+5b/178> Trace: c0155630 <ip_forward+2e0/550> Trace: c015577d <ip_forward+42d/550> Trace: c0145fdd <__kfree_skb+a1/a8> Trace: c01477ed <net_bh+179/1d4> Trace: c0106000 <get_options+0/74> Trace: c0106000 <get_options+0/74> Code: c0166829 <inet_select_addr+11/a0> 00000000 <_EIP>: <=== Code: c0166829 <inet_select_addr+11/a0> 0: 8b 81 8c 00 00 movl 0x8c(%ecx),%eax <=== Code: c016682e <inet_select_addr+16/a0> 5: 00 Code: c016682f <inet_select_addr+17/a0> 6: 85 c0 testl %eax,%eax Code: c0166831 <inet_select_addr+19/a0> 8: 74 7d je c01668b0 <inet_select_addr+98/a0> Code: c0166833 <inet_select_addr+1b/a0> a: 8b 50 04 movl 0x4(%eax),%edx Code: c0166836 <inet_select_addr+1e/a0> d: eb 1c jmp c0166854 <inet_select_addr+3c/a0> Code: c0166838 <inet_select_addr+20/a0> f: 31 c0 xorl %eax,%eax Code: c016683a <inet_select_addr+22/a0> 11: 8a 42 1c movb 0x1c(%edx),%al
Aiee, killing interrupt handler Kernel panic. Attempted to kill the idle task! In swapper task - not syncing
1 warning issued. Results may not be reliable.
Richard Bouska Richard@Bouska.cz
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