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SubjectRe: NULL pointer dereference with 2.0.17


I had this error on one of our machines, it was bacause /dev/console
was not major 4, minor 0...

The cause was Slackware 3.1, which has now been corrected... pull
a new version of MAKEDEV and recreate the devs.

Simon Greenaway

On Tue, 3 Sep 1996, Alfredo Sanjuan wrote:

>
> Something is broken with 2.0.17. What's the meaning of this?:
>
> Sep 3 13:42:46 pulp pppd[1133]: pppd 2.2.0 started by alfre, uid 500
> Sep 3 13:43:12 pulp pppd[1133]: Serial connection established.
> Sep 3 13:43:13 pulp pppd[1133]: Using interface ppp0
> Sep 3 13:43:13 pulp pppd[1133]: Connect: ppp0 <--> /dev/modem
> Sep 3 13:43:13 pulp pppd[1133]: Remote message:
> Sep 3 13:43:14 pulp pppd[1133]: local IP address 194.224.182.89
> Sep 3 13:43:14 pulp pppd[1133]: remote IP address 172.16.1.14
> Sep 3 13:43:14 pulp ip-up: ppp0: 194.224.182.89 172.16.1.14 /dev/modem 38400 jet PPID=1133
> Sep 3 13:45:26 pulp kernel: Warning: dev (04:c2) tty->count(1) != #fd's(2) in do_tty_hangup
> Sep 3 13:45:26 pulp kernel: Unable to handle kernel NULL pointer dereference at virtual address c0000010
> Sep 3 13:45:26 pulp kernel: current->tss.cr3 = 00ed9000, 8r3 = 00ed9000
> Sep 3 13:45:26 pulp kernel: *pde = 00102067
> Sep 3 13:45:26 pulp kernel: *pte = 00000027
> Sep 3 13:45:26 pulp kernel: Oops: 0000
> Sep 3 13:45:26 pulp kernel: CPU: 0
> Sep 3 13:45:27 pulp kernel: EIP: 0010:[tty_fasync+19/320]
> Sep 3 13:45:27 pulp kernel: EFLAGS: 00010246
> Sep 3 13:45:27 pulp kernel: eax: 00000000 ebx: 00855000 ecx: 001be7e4 edx: 00db4c0c
> Sep 3 13:45:27 pulp kernel: esi: 00910a80 edi: 00000000 ebp: 00000000 esp: 009e6f04
> Sep 3 13:45:27 pulp kernel: ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
> Sep 3 13:45:27 pulp kernel: Process xterm (pid: 1034, process nr: 29, stackpage=009e6000)
> Sep 3 13:45:27 pulp kernel: Stack: 00910a80 00000071 001c6cb4 00855000 0017e401 00000000 00910a80 00000000
> Sep 3 13:45:27 pulp kernel: 002a0000 00000002 00910c40 00855000 0017e58f 00855000 001c6cb4 00187b10
> Sep 3 13:45:27 pulp kernel: 00855000 002a0000 0017f43f 002a0000 00910c40 00910c40 00dc8894 00dc8894
> Sep 3 13:45:27 pulp kernel: Call Trace: [do_tty_hangup+97/480] [tty_hangup+15/32] [pty_close+160/176] [release_dev+671/1248] [tty_release+10/16] [__fput+28/64] [close_fp+88/112]
> Sep 3 13:45:27 pulp kernel: [sys_close+68/80] [system_call+82/128]
> Sep 3 13:45:27 pulp kernel: Code: 66 8b 47 10 85 db 75 25 68 6a 4b 1b 00 25 ff ff 00 00 50 e8
>
> This happen with 2.0.15 and 2.0.17 with no system load...
>
> Regards - Alfredo
> ---
> Alfredo Sanjuan, Director Tecnico <alfre@ibd.es>
> Internet Business Development S.L. <http://www.ibd.es/>
> Dir. : San Martin 53, 4-Of.6 20007 Donostia (Euskadi)
> Tlf. : +34-43-474930 Fax: +34-43-459949
>
>
>


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