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SubjectBUG Report 2.4.0-test11-pre3: NMI Watchdoch detected LOCKUP at CPU[01] (fwd)
A bug i had with kernel version 2.4.0-test9 is still there, but there are
additional information:

When parport_pc is compiled as module, and not already loaded
"modprobe imm" yields the LOCKUP message (subject).

The iomega-drive is usable after the modprobe and despite of
the lockup.

If parport_pc is compiled into the kernel, or the modules is already
loaded, this lockup doen not happen.



the trace looks like this:

0: ?? (assume spin_lock_irqsave in blk_get_queue but printed EIP seems to
be sensless - area with no code according to the map file)

1: ll_rw_blk.c: 874
generic_make_request -> "after line q = blk_get_queue(...)"
2: ll_rw_blk.c: 925 ll_rw_block
3: ll_rw_blk.c: 287 writeout_one_page
4: filemap.c: 332 do_buffer_fdatasync
5: filemap.c: 352 generic_buffer_fdatasync

5.1: filemap.c: 278 writeout_one_page
this is on the stack trace, but maybe only since its adress is used in
call (5)

6: ext2/fsync.c: 140 ext2_sync_file
7: fs/buffer.c: 370 sys_fsync

Please CC me, if you have some comments, ideas, and thanks for your time.

Gert

additional information:

Linux version 2.4.0-test11--pre3 (gcc version 2.95.2 19991024 (release)) #30 SMP Son Nov 12 19:15:40 CET 2000
Kernel modules 2.3.19
Gnu C 2.95.2
Gnu Make 3.77
Binutils 2.9.1.0.25
Linux C Library 2.1.1
Dynamic linker ldd (GNU libc) 2.1.1
Procps 2.0.2
Mount 2.9w
Net-tools 1.52
Console-tools 0.2.0
Sh-utils 2.0
Modules Loaded sd_mod nfsd lockd sunrpc 8139too nls_cp437 vfat
fat awe_wave sb sb_lib uart401 sound soundcore
advansys scsi_mod

/proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 5
model name : Pentium II (Deschutes)
stepping : 2
cpu MHz : 451.000029
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr
bogomips : 897.84

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 5
model name : Pentium II (Deschutes)
stepping : 2
cpu MHz : 451.000029
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr
bogomips : 901.12

/proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 3).
Master Capable. Latency=64.
Prefetchable 32 bit memory at 0xe4000000 [0xe7ffffff].
Bus 0, device 1, function 0:
PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 3).
Master Capable. Latency=64. Min Gnt=136.
Bus 0, device 4, function 0:
ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 2).
Bus 0, device 4, function 1:
IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 1).
Master Capable. Latency=32.
I/O at 0xd800 [0xd80f].
Bus 0, device 4, function 2:
USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 1).
Master Capable. Latency=32.
I/O at 0xd400 [0xd41f].
Bus 0, device 4, function 3:
Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 2).
Bus 0, device 9, function 0:
SCSI storage controller: Advanced System Products, Inc ABP940-U / ABP960-U (rev 3).
IRQ 9.
Master Capable. Latency=32. Min Gnt=4.Max Lat=4.
I/O at 0xd000 [0xd0ff].
Non-prefetchable 32 bit memory at 0xde800000 [0xde8000ff].
Bus 0, device 10, function 0:
Multimedia video controller: Brooktree Corporation Bt878 (rev 2).
IRQ 10.
Master Capable. Latency=32. Min Gnt=16.Max Lat=40.
Prefetchable 32 bit memory at 0xe1000000 [0xe1000fff].
Bus 0, device 10, function 1:
Multimedia controller: Brooktree Corporation Bt878 (rev 2).
IRQ 10.
Master Capable. Latency=32. Min Gnt=4.Max Lat=255.
Prefetchable 32 bit memory at 0xe0800000 [0xe0800fff].
Bus 0, device 12, function 0:
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 16).
IRQ 11.
Master Capable. Latency=32. Min Gnt=32.Max Lat=64.
I/O at 0xb800 [0xb8ff].
Non-prefetchable 32 bit memory at 0xde000000 [0xde0000ff].
Bus 1, device 0, function 0:
VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 5).
IRQ 11.
Master Capable. Latency=64. Min Gnt=16.Max Lat=32.
Prefetchable 32 bit memory at 0xe2000000 [0xe3ffffff].
Non-prefetchable 32 bit memory at 0xdf800000 [0xdf803fff].
Non-prefetchable 32 bit memory at 0xdf000000 [0xdf7fffff].

/proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: PLEXTOR Model: CD-ROM PX-32TS Rev: 1.02
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: TEAC Model: CD-R55S Rev: 1.0H
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 06 Lun: 00
Vendor: IOMEGA Model: ZIP 250 Rev: J.45
Type: Direct-Access ANSI SCSI revision: 02


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