Re: Error in 2.2.14 and 2.2.15: kmem_alloc: Bad slab magic (corrupt) (name=buffer_head)

From: Anthony Barbachan (barbacha@Hinako.AMBusiness.com)
Date: Wed May 10 2000 - 20:55:32 EST


I do not see anything that looks like a call trace.
I completely searched /var/log/syslog for similar kernel messages. I found
the following.

After booting on Apr 13 19:37:36 I found this.

Apr 16 04:40:24 Lain kernel: Unable to handle kernel paging request at
virtual address 0051fbbc
Apr 16 04:40:24 Lain kernel: current->tss.cr3 = 0e76d000, %cr3 = 0e76d000
Apr 16 04:40:24 Lain kernel: *pde = 00000000

Then a reboot the following day. I assume the machine crashed at the time.
After booting on Apr 17 11:01:27 I found this.

Apr 17 23:23:56 Lain kernel: Unable to handle kernel paging request at
virtual address 00c2bf38
Apr 17 23:23:56 Lain kernel: current->tss.cr3 = 0e34a000, %cr3 = 0e34a000
Apr 17 23:23:56 Lain kernel: *pde = 00000000

Then a reboot the following day. I assume the machine crashed at the time.
After booting on Apr 21 09:59:49 I found this.

Apr 24 23:01:16 Lain kernel: Unable to handle kernel paging request at
virtual address 00fe1380
Apr 24 23:01:16 Lain kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
Apr 24 23:01:16 Lain kernel: *pde = 00000000
Apr 24 23:04:06 Lain kernel: Unable to handle kernel paging request at
virtual address 00fe1380
Apr 24 23:04:06 Lain kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
Apr 24 23:04:06 Lain kernel: *pde = 00000000

A reboot the next day. The following crash happened after a boot on Apr 27
18:02:45

May 2 02:24:57 Lain kernel: Unable to handle kernel paging request at
virtual address 006b3168
May 2 02:24:57 Lain kernel: current->tss.cr3 = 0ee28000, %cr3 = 0ee28000
May 2 02:24:57 Lain kernel: *pde = 00000000
May 3 23:06:04 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:06:05 Lain last message repeated 33 times
May 3 23:06:05 Lain kernel: Unable to handle kernel paging request at
virtual address b738503c
May 3 23:06:05 Lain kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
May 3 23:06:05 Lain kernel: *pde = 00000000
May 3 23:06:05 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:06:07 Lain last message repeated 6879 times
May 3 23:06:07 Lain kernel: kmem slab magic (corrupt) (name=buffer_head)
May 3 23:06:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:06:07 Lain last message repeated 137 times
May 3 23:06:07 Lain kernel: kmem slab magic (corrupt) (name=buffer_head)
May 3 23:06:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:06:07 Lain last message repeated 137 times
May 3 23:06:07 Lain last message repeated 137 times
May 3 23:06:07 Lain kernel: kmem slab magic (corrupt) (name=buffer_head)
May 3 23:06:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:06:07 Lain last message repeated 67 times
May 3 23:06:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt) (n slab
magic (corrupt) (name=buffer_head)
May 3 23:06:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 3 23:29:41 Lain last message repeated 10183 times
May 3 23:29:41 Lain kernel: kmem_alloc: Bad slab magic (corrupt) (name=bu
slab magic (corrupt) (name=buffer_head)
May 3 23:29:41 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)

... sniped ... The same messages continue in bursts

May 4 07:33:58 Lain last message repeated 275 times
May 4 07:33:58 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_he slab magic (corrupt) (name=buffer_head)
May 4 07:33:58 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)

This continues at in similar bursts at varying times until a reboot on May
4 09:17:52
It start up again here.

May 6 01:56:32 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 01:56:32 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 01:56:33 Lain last message repeated 516 times
May 6 01:56:33 Lain kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000010
May 6 01:56:33 Lain kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
May 6 01:56:33 Lain kernel: *pde = 00000000
May 6 01:56:33 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:47 Lain last message repeated 207 times
May 6 02:21:47 Lain kernel: kmem_alloc slab magic (corrupt)
(name=buffer_head)
May 6 02:21:47 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:48 Lain last message repeated 8178 times
May 6 02:21:48 Lain kernel: kmem_alloc: Bad slab slab magic (corrupt)
(name=buffer_head)
May 6 02:21:48 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:52 Lain last message repeated 716 times
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab slab magic (corrupt)
(name=buffer_head)
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:52 Lain last message repeated 2700 times
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_he slab magic (corrupt) (name=buffer_head)
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:52 Lain last message repeated 275 times
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_he slab magic (corrupt) (name=buffer_head)
May 6 02:21:52 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)
May 6 02:21:53 Lain last message repeated 8793 times
May 6 02:21:53 Lain kernel: kmem_alloc: Bad slab magic (corrupt) (name=bu
slab magic (corrupt) (name=buffer_head)
May 6 02:21:53 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=buffer_head)

Continues in bursts until a reboot on May 6 13:27:30.
The following is what I have found today, as its short the entire log entry
is included.

May 10 07:44:25 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:44:31 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:45:24 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:03 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:03 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:05 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:05 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:07 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:07 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:30 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:30 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:43 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:43 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:47 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:47 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:50 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:50 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:46:54 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:46:54 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:00 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:00 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:01 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:01 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:04 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:04 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:05 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:05 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:19 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:19 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:22 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:22 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:25 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:25 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:27 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:27 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:48 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:48 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:51 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:51 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:55 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:55 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:48:00 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:48:00 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:51 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:51 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:47:55 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:47:55 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:48:00 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:48:00 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:48:03 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:48:03 Lain inetd[577]: fork: Cannot allocate memory
May 10 07:50:01 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:50:25 Lain last message repeated 4 times
May 10 07:50:34 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)
May 10 07:50:34 Lain kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000010
May 10 07:50:34 Lain kernel: current->tss.cr3 = 00101000, %cr3 = 00101000
May 10 07:50:34 Lain kernel: *pde = 00000000
May 10 07:50:35 Lain kernel: kmem_alloc: Bad slab magic (corrupt)
(name=vm_area_struct)

And thats it, machine rebooted at May 10 08:00:45.

----- Original Message -----
From: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
To: "Anthony Barbachan" <barbacha@hinako.ambusiness.com>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>; <linux-kernel@vger.rutgers.edu>
Sent: Wednesday, May 10, 2000 8:17 PM
Subject: Re: Error in 2.2.14 and 2.2.15: kmem_alloc: Bad slab magic
(corrupt) (name=buffer_head)

> > May 10 07:50:34 Lain kernel: Unable to handle kernel NULL pointer
> > dereference at
> > virtual address 00000010
> > May 10 07:50:34 Lain kernel: current->tss.cr3 = 00101000, %cr3 =
00101000
> > May 10 07:50:34 Lain kernel: *pde = 00000000
>
> Maybe. Is there a call trace with it
>
>

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