kernel BUG at slab.c:1651! (2.3.47)

From: Jorge Nerin (jnerin@svalero.es)
Date: Thu Feb 24 2000 - 11:00:52 EST


I wasn't doing anything that could reproduce the bug, I was simply, in
the machine, btw Ctrl-Alt-BackSpace "solved" the problem, it was
Enlightenment, so X was runnig but without window manager, very
annoying, don't try it at home or worse, at work ;)

kernel: kmem_free: Bad obj addr (objp=c4fb3d40, name=size-32)
kernel: kernel BUG at slab.c:1651!
kernel: invalid operand: 0000
kernel: CPU: 0
kernel: EIP: 0010:[kfree+795/836]
kernel: EFLAGS: 00010282
kernel: eax: 0000001b ebx: c11cb0e0 ecx: c02477dc edx: c51f9f7c
kernel: esi: c4fb358c edi: c11cb100 ebp: c4fb3d40 esp: c3ab9e80
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process enlightenment (pid: 877, stackpage=c3ab9000)
kernel: Stack: c020756c c02078d5 00000673 c5100780 00000020 c51007e0
c38deca8 c4fb3d7c
kernel: 00000002 00000202 04fb3d40 c01b2a14 c4fb3d40 c5100780
00000020 c01b2bb1
kernel: c5100780 00000040 c5100780 c01ef3f2 c5100780 c3a41588
00000020 00000040
kernel: Call Trace: [tvecs+7584/29492] [tvecs+8457/29492]
[kfree_skbmem+40/136] [__kfree_skb+317/324]
[unix_stream_recvmsg+1286/1828] [sock_recvmsg+65/176]
[unix_stream_recvmsg+0/1828]
kernel: [sock_read+147/156] [sys_read+262/296]
[system_call+52/56]
kernel: Code: 0f 0b 83 c4 0c eb 18 55 68 42 7b 20 c0 e8 c7 85 fe ff c7
05

And this appeared a few lines and ten minutes before the next dump.

Feb 24 15:53:44 quartz kernel: __elevator_merge: req latency 4065 req
latency 4064
Feb 24 15:54:12 quartz kernel: __elevator_merge: req latency 4035 req
latency 4034

And then, this one caused X to go away.

Unable to handle kernel paging request at virtual address dead4ead
 printing eip:
c0117be6
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[__wake_up+294/1288]
EFLAGS: 00013046
eax: c3654b14 ebx: c3654b04 ecx: c5d623f4 edx: c3654b14
esi: c19be880 edi: dead4ead ebp: c40f1e9c esp: c40f1e54
ds: 0018 es: 0018 ss: 0018
Process X (pid: 1070, stackpage=c40f1000)
Stack: c19be94c c19be880 00000040 dead4ead c4f1b700 00000005 00003246
00000020
       00000020 c19be880 c19bf780 00000000 00000000 c3654b0c c5d623ec
00003286
       00000021 c5d623e4 c19bf7e8 c01ec081 c19be880 00000004 00000004
c01b1718
Call Trace: [awe_wave+512326861/648986624] [unix_write_space+105/136]
[sock_wfree+24/52] [__kfree_skb+123/324] [unix_stream_recvmsg+1286/1828]
[sock_recvmsg+65/176] [unix_stream_recvmsg+0/1828]
       [sock_read+147/156] [sys_read+262/296] [system_call+52/56]
Code: 8b 3f 89 f8 89 7d e8 24 df 85 45 f8 0f 84 67 03 00 00 8b 45

But it seems very stable, it only crashes X related things, the other
ones are ok ;)

E, X, what will be the next on...pppd[1024]: Connection terminated.

-- 
Jorge Nerin
<jnerin@svalero.es>
<comandante@zaralinux.com>

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