Fwd: Re: SUSPECT: Re: [pso] [tema2]linux - eroare in intrerupere

Wed Apr 18 19:29:33 EEST 2007

Am rezolvat prb asta.

--- Octavian Purdila <tavi at cs.pub.ro> wrote:

> 
> 
> ----------  Forwarded Message  ----------
> 
> Subject: Re: SUSPECT: Re: [pso] [tema2]linux -
> eroare in intrerupere
> Date: Wednesday 18 April 2007 18:31
> From: omar Chouydary <chouydary at yahoo.com>
> To: Octavian Purdila <tavi at cs.pub.ro>
> 
> Am reusit sa instalez netconsole. Pentru cei care nu
> l-au folosit sau care nu stiu aici e link-ul cu
> informatia:
>   http://www.debian-administration.org/articles/492
>   De asemeni in windows se poate folosi netcat
> (search google netcat windows) si merge ok.
>   Dump-ul este acesta:
>   uart_driver loaded
> Tipu= 0 si size= 0
> slab error in verify_redzone_free(): cache
> `size-32': double free detected
>  [<c0104936>] show_trace_log_lvl+0x176/0x190
>  [<c0104f0d>] show_trace+0xd/0x10
>  [<c0104fc9>] dump_stack+0x19/0x20
>  [<c0157ef8>] __slab_error+0x18/0x20
>  [<c0158664>] cache_free_debugcheck+0x1d4/0x2d0
>  [<c0158909>] kfree+0x79/0xf0
>  [<d883d69f>] uart16550_close+0x9f/0xe0 [uart16550]
>  [<c015dc4c>] __fput+0xac/0x1e0
>  [<c015ddd8>] fput+0x18/0x20
>  [<c015b1ce>] filp_close+0x3e/0x70
>  [<c0118fc1>] put_files_struct+0xb1/0xc0
>  [<c011a102>] do_exit+0x182/0x940
>  [<c011a8eb>] do_group_exit+0x2b/0x80
>  [<c011a950>] sys_exit_group+0x10/0x20
>  [<c010316d>] sysenter_past_esp+0x56/0x99
>  [<b7fad410>] 0xb7fad410
> cd5fd9ac: redzone 1:0x5a2cf071, redzone
> 2:0x5a2cf071.
> ------------[ cut here ]------------
> kernel BUG at mm/slab.c:2747!
> invalid opcode: 0000 [#1]
> PREEMPT DEBUG_PAGEALLOC
> Modules linked in: uart16550 netconsole vmhgfs
> vmxnet
> CPU:    0
> EIP:    0060:[<c0158731>]    Tainted: P      VLI
> EFLAGS: 00010006   (2.6.18 #6)
> EIP is at cache_free_debugcheck+0x2a1/0x2d0
> eax: 000fe528   ebx: 80052c00   ecx: 00001000   edx:
> 00000000
> esi: cdb93000   edi: d7eef800   ebp: d56a5d30   esp:
> d56a5d00
> ds: 007b   es: 007b   ss: 0068
> Process syslogd (pid: 2196, ti=d56a5000
> task=d56a4580 task.ti=d56a5000)
> Stack: 000fe528 c02b84cd 00181760 cd5fd9b0 00000246
> 00000002 00000002 cc0bb000
>        00000246 d7eef800 d7ee0f38 cc0bbef8 d56a5d48
> c0158909 00000282 d57b2f5c
>        d57b2f5c d56a5d9c d56a5d58 c02b84cd d57b2f5c
> d57b2f5c d56a5d64 c02b82bb
> Call Trace:
>  [<c0158909>] kfree+0x79/0xf0
>  [<c02b84cd>] skb_release_data+0x4d/0x90
>  [<c02b82bb>] kfree_skbmem+0xb/0x80
>  [<c02b838e>] __kfree_skb+0x5e/0xd0
>  [<c02b8419>] kfree_skb+0x19/0x30
>  [<c02ba6fa>] skb_free_datagram+0xa/0x10
>  [<c030e310>] unix_dgram_recvmsg+0x130/0x1f0
>  [<c02b27a2>] sock_recvmsg+0xd2/0x100
>  [<c02b3e97>] sys_recvfrom+0x87/0xe0
>  [<c02b3f0c>] sys_recv+0x1c/0x20
>  [<c02b42c6>] sys_socketcall+0x116/0x1e0
>  [<c010316d>] sysenter_past_esp+0x56/0x99
>  [<b7f90410>] 0xb7f90410
> Code: 76 0b 83 c3 04 f7 c3 fc 0f 00 00 75 cd 8b 45
> e8 c7 00 21 43 65 87 8b 5f 10
>  e9 6a ff ff ff 0f 0b bc 0a 9b bf 33 c0 e9 03 fe ff
> ff <0f> 0b bb 0a 9b bf 33 c0
>  e9 e4 fd ff ff 0f 0b 60 02 9b bf 33 c0
> EIP: [<c0158731>] cache_free_debugcheck+0x2a1/0x2d0
> SS:ESP 0068:d56a5d00
>  <0>Kernel panic - not syncing: Fatal exception
>   
> 
> Octavian Purdila <tavi at cs.pub.ro> wrote:
>   On Wednesday 18 April 2007 15:16, omar Chouydary
> wrote:
> > Problema este ca nu pot sa prind dump-ul ca am tot
> incercat. Dupa ce se blocheaza masinutza dau restart
> (CTRL+R), porneste dar fie nu este nimic in fisierul
> eror (apelasem mai devreme ./tema2 2>eror) fie nu
> exista acel fisier. Iar dmesg retine doar informatia
> de la pornirea curenta.
> > Tot ce am reusit este sa fac un screenshot la ce a
> ramas (ultima pagina a dump-ului). Este atasat aici.
> > Ma gandesc sa nu fie de la masina virtuala de
> windows, sa nu-i placa acel pipe or smth de asta
> intrebam daca a facut cineva ok tema folosind masina
> virtuala de windows.
> > 
> 
> Nu mai tin minte, dar parca masina virtuala de Linux
> are instalata netconsole. Configureaza-l astfel
> incat sa trimita pachetele catre IP-ul masinii tale
> host, si apoi porneste un program pe host care sa
> iti prinda pachetele. In felul asta o sa poti sa
> prinzi dump-ul. 
> 
> tavi
> 
> 
>        
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>
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