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Subjectoops with 2.2.10-ac9 (scsi)

Hi,

I've just inserted the aic7xxx module to read a solaris drive when I
discovered that I need solaris disklabel suport, ufs, ufs read-write so I
started compiling a new kernel (while reading mail). the scsi disk is not
mounted, I only did a fdisk /dev/sda once. I think SLAB poisoning got
something, so can someone confirm that this is fixed in 2.2.10-ac10 (or newer)
on second thoughts, this could be caused by the removal of the
modules by the cron script. the system did not lock and I could get the
info, run ksymoops, scp the report to another system to send this mail. my
guess is that sd_mod does something wrong.
some info about my system:

modules:
[root@Cnn]:ksymoops/:# lsmod
Module Size Used by
lsmod: QM_INFO: No such file or directory
;;; ?? what is this ??

[root@Cnn]:ksymoops/:# cat /proc/modules
sd_mod 16316 0 (deleted) ;;; never seen this before
aic7xxx 104828 0
scsi_mod 50896 2 [sd_mod aic7xxx]
ne2k-pci 4448 1 (autoclean)
8390 6244 0 (autoclean) [ne2k-pci]
unix 10108 17 (autoclean)

[root@Cnn]:ksymoops/:# gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
[root@Cnn]:ksymoops/:# rpm -q redhat-release
redhat-release-6.0-1
[root@Cnn]:ksymoops/:# cat /proc/scsi/scsi /proc/scsi/aic7xxx/0
Attached devices:
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: SEAGATE Model: ST31230N Rev: 0510
Type: Direct-Access ANSI SCSI revision: 02

Adaptec AIC7xxx driver version: 5.1.18/3.2.4
Compile Options:
TCQ Enabled By Default : Enabled
AIC7XXX_PROC_STATS : Disabled
AIC7XXX_RESET_DELAY : 5

Adapter Configuration:
SCSI Adapter: Adaptec AHA-294X SCSI host adapter
Narrow Controller
PCI MMAPed I/O Base: 0xebfef000
Adapter SEEPROM Config: SEEPROM found and used.
Adaptec SCSI BIOS: Enabled
IRQ: 9
SCBs: Active 0, Max Active 1,
Allocated 30, HW 16, Page 255
Interrupts: 53
BIOS Control Word: 0x01b6
Adapter Control Word: 0x000c
Extended Translation: Enabled
Disconnect Enable Flags: 0x00ff
Tag Queue Enable Flags: 0x0008
Ordered Queue Tag Flags: 0x0008
Default Tag Queue Depth: 16
Tagged Queue By Device array for aic7xxx host instance 0:
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
Actual queue depth per device for aic7xxx host instance 0:
{1,1,1,16,1,1,1,1,1,1,1,1,1,1,1,1}

Statistics:

(scsi0:0:3:0)
Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/0/0)
Total transfers 3 (3 reads and 0 writes)

[root@Cnn]:/root/:# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 6
model name : AMD-K6tm w/ multimedia extensions
stepping : 2
cpu MHz : 200.462233
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mmx
bogomips : 399.77

[root@Cnn]:ksymoops/:# cat /proc/pci
cat uses obsolete /proc/pci interface
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: VIA Technologies VT 82C597 Apollo VP3 (rev 4).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
Prefetchable 32 bit memory at 0xe0000000 [0xe0000008].
Bus 0, device 1, function 0:
PCI bridge: VIA Technologies VT 82C597 Apollo VP3 AGP (rev 0).
Medium devsel. Master Capable. No bursts.
Bus 0, device 7, function 0:
ISA bridge: VIA Technologies VT 82C586 Apollo ISA (rev 65).
Medium devsel. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: VIA Technologies VT 82C586 Apollo IDE (rev 6).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0xffa0 [0xffa1].
Bus 0, device 8, function 0:
VGA compatible controller: S3 Inc. ViRGE (rev 6).
Medium devsel. Master Capable. Latency=32. Min Gnt=4.Max Lat=255.
Non-prefetchable 32 bit memory at 0xec000000 [0xec000000].
Bus 0, device 9, function 0:
SCSI storage controller: Adaptec AIC-7871 (rev 3).
Medium devsel. Fast back-to-back capable. IRQ 9. Master Capable. Latency=32. Min Gnt=8.Max Lat=8.
I/O at 0xce00 [0xce01].
Non-prefetchable 32 bit memory at 0xebfef000 [0xebfef000].
Bus 0, device 10, function 0:
Ethernet controller: Realtek 8029 (rev 0).
Medium devsel. IRQ 7.
I/O at 0xcc00 [0xcc01].

[root@Cnn]:scripts/:# . ver_linux
-- Versions installed: (if some fields are empty or looks
-- unusual then possibly you have very old versions)
Linux Cnn.CODEC.Ro. 2.2.10-ac9 #24 Thu Jul 8 19:39:15 EEST 1999 i586 unknown
Kernel modules 2.1.121
Gnu C egcs-2.91.66
Binutils 2.9.1.0.23
Linux C Library 2.1.1
Dynamic linker ldd (GNU libc) 2.1.1
Procps 2.0.2
Mount 2.9o
Net-tools 1.52
Kbd [option...]
Sh-utils 1.16
Modules Loaded sd_mod aic7xxx scsi_mod ne2k-pci 8390 unix

===========================================================================

Oops decoded:

Options used: -V (default)
-o /lib/modules/2.2.10-ac9/ (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-m /boot/System.map-2.2.10-ac9 (specified)
-c 1 (default)

Warning in compare_ksyms_lsmod, module sd_mod is in lsmod but not in ksyms, probably no symbols exported
Unable to handle kernel NULL pointer dereference at virtual address 00000000
current->tss.cr3 = 03477000, %cr3 = 03477000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c011e707>]
EFLAGS: 00010292
eax: 0000001b ebx: 5a5a5a5a ecx: 00000025 edx: 00000016
esi: c157d200 edi: 5a5a5a5a ebp: c484ae80 esp: c2ea1f2c
ds: 0018 es: 0018 ss: 0018
Process rmmod (pid: 5604, process nr: 28, stackpage=c2ea1000)
Stack: 5a5a5a5a c157d200 c3e36000 c484ae80 a5c32f2b 00000a7d 00000246
c481dfda
5a5a5a5a 5a5a5a5a c481f35e 5a5a5a5a 00000118 c4847000 c4847000
00000001
00000000 c481f442 c484ae80 c4849e12 00000004 c484ae80 c4847000
c4847000
Call Trace: [<c484ae80>] [<c481dfda>] [<c481f35e>] [<c4847000>] [<c4847000>]
[<c481f442>] [<c484ae80>]
[<c4849e12>] [<c484ae80>] [<c4847000>] [<c4847000>] [<c0114150>]
[<c4847000>] [<c482a000>] [<c0113824>]
[<c4847000>] [<c01079bc>]
Code: c7 05 00 00 00 00 00 00 00 00 83 c4 08 5b 5e 5f 5d 83 c4 0c

>>EIP: c011e707 <kfree+28f/2a4>
Trace: c484ae80 <driver_template+77e0/????>
Trace: c481dfda <scsi_init_free+32/38>
Trace: c481f35e <scsi_unregister_device+5e/b4>
Trace: c4847000 <driver_template+3960/????>
Trace: c4847000 <driver_template+3960/????>
Trace: c481f442 <scsi_unregister_module+32/38>
Trace: c4849e12 <driver_template+6772/????>
Trace: c4847000 <driver_template+3960/????>
Trace: c4847000 <driver_template+3960/????>
Code: c011e707 <kfree+28f/2a4> 00000000 <_EIP>: <===
Code: c011e707 <kfree+28f/2a4> 0: c7 05 00 00 00 00 00 movl $0x0,0x0 <===
Code: c011e70e <kfree+296/2a4> 7: 00 00 00
Code: c011e711 <kfree+299/2a4> a: 83 c4 08 addl $0x8,%esp
Code: c011e714 <kfree+29c/2a4> d: 5b popl %ebx
Code: c011e715 <kfree+29d/2a4> e: 5e popl %esi
Code: c011e716 <kfree+29e/2a4> f: 5f popl %edi
Code: c011e717 <kfree+29f/2a4> 10: 5d popl %ebp
Code: c011e718 <kfree+2a0/2a4> 11: 83 c4 0c addl $0xc,%esp


1 warning issued. Results may not be reliable.



--
Catalin Muresan
CODEC Electronic Products
Internet Services Department
2498288.00 2318391.18

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