Messages in this thread |  | | Date | Sun, 8 Sep 1996 01:53:26 +1200 (NZST) | From | Oliver Jowett <> | Subject | net-related oops in 2.0.14 |
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Just got this oops shortly after my modem had hung up and diald had reconnected my PPP link. I was opening a large mailbox in pine (gotta love all that linux-kernel traffic :) and ran a netstat -nto on another console. I also had a telnet open which was probably about to do a tcp retransmit because of my link going down...
This may or may not be relevant, but I just put in a secondary IDE controller for a new ATAPI cdrom drive; its sharing IRQ 14 with ide0 and seems to function fine.
Kernel 2.0.14, using kerneld and everything but the basics compiled as modules (including ppp). The machine seemed to continue to run for 5 mins or so without further ill effects, then I rebooted it.
Sep 7 16:39:19 chimera pppd[4341]: pppd 2.2.0 started by dialout, uid 0 Sep 7 16:39:19 chimera pppd[4341]: Using interface ppp0 Sep 7 16:39:19 chimera pppd[4341]: Connect: ppp0 <--> /dev/ttyS0 Sep 7 16:39:23 chimera pppd[4341]: local IP address 130.123.34.31 Sep 7 16:39:23 chimera pppd[4341]: remote IP address 130.123.34.22 Sep 7 16:40:21 chimera kernel: Unable to handle kernel NULL pointer dereference at virtual address c000003c Sep 7 16:40:22 chimera kernel: current->tss.cr3 = 00101000, `r3 = 00101000 Sep 7 16:40:22 chimera kernel: *pde = 00102067 Sep 7 16:40:22 chimera kernel: *pte = 00000027 Sep 7 16:40:22 chimera kernel: Oops: 0000 Sep 7 16:40:22 chimera kernel: CPU: 0 Sep 7 16:40:22 chimera kernel: EIP: 0010:[<010355f3>] Sep 7 16:40:22 chimera kernel: EFLAGS: 00010246 Sep 7 16:40:22 chimera kernel: eax: 004e3ee0 ebx: 003dced8 ecx: 00013288 edx: 010355e4 Sep 7 16:40:22 chimera kernel: esi: 00000000 edi: 004e3ee0 ebp: 003dced8 esp: 0018a834 Sep 7 16:40:22 chimera kernel: ds: 0018 es: 0018 fs: 002b gs: 0018 ss: 0018 Sep 7 16:40:22 chimera kernel: Process swapper (pid: 0, process nr: 0, stackpage=00188a68) Sep 7 16:40:22 chimera kernel: Stack: 00000000 004e3ee0 003dcf64 003dced8 0013b6a4 004e3ee0 003dced8 004e3ee0 Sep 7 16:40:22 chimera kernel: 004e3830 006bd410 003dced8 00000000 00000202 0013b6fa 004e3ee0 003dced8 Sep 7 16:40:22 chimera kernel: 00000000 00144ad3 004e3ee0 003dced8 00000000 004e3ee0 006bd410 004e3844 Sep 7 16:40:22 chimera kernel: Call Trace: [<0013b6a4>] [<0013b6fa>] [<00144ad3>] [<0014a8a5>] [<0014900c>] [<0014a1a7>] [<0014231f>] Sep 7 16:40:22 chimera kernel: [<0013b8dc>] [<001170bb>] [<0010a5db>] [<001096bc>] [<0010a652>] [<001093d0>] [<00109243>] Sep 7 16:40:22 chimera kernel: Code: 8b 6e 3c 85 ff 75 1a f6 46 0a 01 74 0d 68 4c 6b 03 01 e8 16 Sep 7 16:40:22 chimera kernel: Aiee, killing interrupt handler Sep 7 16:40:22 chimera kernel: kfree of non-kmalloced memory: 0018aab0, next= 00000000, order=0 Sep 7 16:40:22 chimera kernel: kfree of non-kmalloced memory: 0018aaa0, next= 00000000, order=0 Sep 7 16:40:22 chimera kernel: kfree of non-kmalloced memory: 0018afb4, next= 00000000, order=0 Sep 7 16:40:22 chimera kernel: idle task may not sleep Sep 7 16:40:22 chimera last message repeated 4 times Sep 7 04:40:23 chimera kerneld: error: Identifier removed
Running that through ksymoops:
Using `/boot/System.map' to map addresses to symbols.
Trace: 13b6a4 <do_dev_queue_xmit+184/1c0> Trace: 13b6fa <dev_queue_xmit+1a/30> Trace: 144ad3 <ip_queue_xmit+193/1f0> Trace: 14a8a5 <tcp_write_xmit+1a5/200> Trace: 14900c <tcp_ack+57c/8f0> Trace: 14a1a7 <tcp_rcv+717/860> Trace: 14231f <ip_rcv+3cf/500> Trace: 13b8dc <net_bh+ec/120> Trace: 1170bb <do_bottom_half+3b/70> Trace: 10a5db <handle_bottom_half+b/20> Trace: 1096bc <sys_idle+6c/80> Trace: 10a652 <system_call+52/80> Trace: 1093d0 <init> Trace: 109243 <start_kernel+163/170>
Code: movl 0x3c(%esi),%ebp Code: testl %edi,%edi Code: jne 00000021 <_EIP+21> Code: testb $0x1,0xa(%esi) Code: je 0000001a <_EIP+1a> Code: pushl $0x1036b4c Code: call 9090002d <gcc2_compiled.+9090002d>
Yell if you need any more info on this.
Oliver -- "C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, it blows away your whole leg."
-- Bjarne Stroustrup on C++
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