New: kernel BUG at mm/slab.c:594! Seems to affect various SCSI systems in various ways.

Seems pretty common.

Begin forwarded message:

Date: Fri, 1 Dec 2006 15:44:29 -0800
From: [email protected]
To: [email protected]
Subject: [Bugme-new] [Bug 7614] New: kernel BUG at mm/slab.c:594! Seems to affect various SCSI systems in various ways.

http://bugzilla.kernel.org/show_bug.cgi?id=7614

Summary: kernel BUG at mm/slab.c:594! Seems to affect various
SCSI systems in various ways.
Kernel Version: 2.6.18
Status: NEW
Severity: normal
Owner: [email protected]
Submitter: [email protected]

Most recent kernel where this bug did *NOT* occur: Unknown
Distribution: Fedora
Hardware Environment: i386 with aic7XXX and other
Software Environment:
Problem Description: In my system, my tape drive generates the error below from time to time, seemingly randomly. Others seem to have had the same problem with different hardware using different scsi devices.

Here's other people with the same error:

http://lkml.org/lkml/2006/11/12/63
http://www.mail-archive.com/[email protected]/msg02470.html
http://www.spinics.net/lists/linux-scsi/msg12907.html
http://www.spinics.net/lists/linux-scsi/msg12783.html

------------[ cut here ]------------
kernel BUG at mm/slab.c:594!
invalid opcode: 0000 [#1]
last sysfs file: /class/net/vmnet1/address
Modules linked in: ipv6 vmnet(U) vmmon(U) video sbs i2c_ec container button

battery asus_acpi ac lp parport_pc parport ohci_hcd floppy st sg serio_raw i2c_piix4 i2c_core cfi_probe gen_probe scb2_flash mtdcore e1000 chipreg map_funcs pcspkr ide_cd cdrom dm_snapshot dm_zero dm_mirror dm_mod ext3 jbd aacraid aic7xxx scsi_transport_spi sd_mod scsi_mod

CPU:    0
EIP:    0060:[<c045d3ac>]    Tainted: P      VLI
EFLAGS: 00010202   (2.6.18-1.2239.fc5 #1) 

EIP is at kmem_cache_free+0x29/0x62
eax: c0010068 ebx: f7ffe860 ecx: f7ff5620 edx: c1800000
esi: f7ffcf40 edi: 00000000 ebp: f6b4ac90 esp: ebba4e28
ds: 007b es: 007b ss: 0068
Process tar (pid: 5584, ti=ebba4000 task=dff52270 task.ti=ebba4000)
ds: 007b es: 007b ss: 0068
Process tar (pid: 5584, ti=ebba4000 task=dff52270 task.ti=ebba4000)

Stack: f7ffe860 f7ffcf40 00000000 c0448c0e 00000000 e0963da0 f7ffcf40 e0963da0 
       c04653e6 00000800 00000000 c046510c f8843f74 00000800 00000000 00000006 
       ebba4f5c da3876c8 00000800 00000000 00000002 c1704480 00002000 00000000 
Call Trace:
 [<c0448c0e>] mempool_free+0x61/0x66
 [<c04653e6>] bio_free+0x25/0x30
 [<c046510c>] bio_put+0x27/0x28
 [<f8843f74>] scsi_execute_async+0x15a/0x32d [scsi_mod]
 [<f8952c57>] st_do_scsi+0x1d1/0x221 [st]
 [<f89565d8>] st_read+0x2ed/0x7a6 [st]
 [<c04613d8>] vfs_read+0xa6/0x157
 [<c0461760>] sys_read+0x41/0x67
 [<c0402d9b>] syscall_call+0x7/0xb
DWARF2 unwinder stuck at syscall_call+0x7/0xb
Leftover inexact backtrace:
 =======================
Code: 5f c3 57 89 d7 8d 92 00 00 00 40 89 c1 c1 ea 0c c1 e2 05 03 15 70 53 79 c0
 56 53 8b 02 f6 c4 40 74 03 8b 52 0c 8b 02 84 c0 78 08 <0f> 0b 52 02 e3 f8 61 c0
 39 4a 18 74 08 0f 0b 99 0d e3 f8 61 c0 
EIP: [<c045d3ac>] kmem_cache_free+0x29/0x62 SS:ESP 0068:ebba4e28

Steps to reproduce: Unknown. Seriously... Argh.

Sorry that this bug report isn't very helpful. I just figured havning SCSI problems was serious enough to warrant posting without better information.

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does this reproduce without these proprietary drivers as well ?

Why are you asking me?

I was asking the bugzilla ;)

if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

You're not if you don't cc it ...

However, can we please either get email from the bugzilla flowing on to linux-scsi or just shut it down for SCSI altogether and force people to send email to the list?

Martin, I believe you said you were going to ask the vger postmasters about this?

James

I forward all valid-looking bugzilla reports to this mailing list.

Usually to no effect, I might add.