2000-11-07 22:30:33

by James M.

[permalink] [raw]
Subject: Re:test11-pre1 - Parport/IMM/Zip Oops fixed

My previously reported Parport/Zip Oops seems to have gone away. I
suspect the SMP race fixs were the culprit...thank you.
However my parport is still misdetected as SPP by the IMM driver when
it is actually set to EPP. This is an Epox/SMP Xeon (400 mhz), EP-GXB-M
with an Award Bios and Winbond Super I/O Multi controller.

Now if we could just do something about those 10 fps in quake that I
lost since 2.3.4x....;=)

James M.
aka "Dart"


2000-11-13 22:52:56

by James M.

[permalink] [raw]
Subject: Re:test11-pre1 Parport/IMM/Zip Oops fixed -- Are we in Florida?

James M wrote:
>
> My previously reported Parport/Zip Oops seems to have gone away. I
> suspect the SMP race fixs were the culprit...thank you.
> However my parport is still misdetected as SPP by the IMM driver when
> it is actually set to EPP. This is an Epox/SMP Xeon (400 mhz), EP-GXB-M
> with an Award Bios and Winbond Super I/O Multi controller.

Move that one back into the broken column please. It happened between
11pre2 and 11pre3.

2000-11-14 23:14:14

by James M.

[permalink] [raw]
Subject: Parport/IMM/Zip Oops Revisited -- Filesys problem? Viro please look

James M wrote:

Was just trying to find out why I can mount in 11pre1 and 11pre2 when
Gert can't mount at all, so I removed my VFAT factory formatted zipdisk
and put in an Ext2 formatted one.....**BOOM**

Al, my original oops report is here:

http://boudicca.tux.org/hypermail/linux-kernel/2000week42/1240.html

Summary: Test10 is broken for both filesystems (sick of fsck'n-not
confirmed)
11pre1-pre2 work for VFAT broken for EXT2
11pre3 is broken for both filesystems

Anything you want me to try just let me know, I've already been
through about 100 fscks, a few more won't hurt.
BTW I have a list of 23 common non-obvious files that changed in
test10/11pre1 and 11pre2/pre3, say the word and I'll mail the list.

James M.

--30 Gig of fsck sucks--

2000-11-15 00:10:58

by Gert Wollny

[permalink] [raw]
Subject: Re: Parport/IMM/Zip Oops Revisited -- Filesys problem? Viro please look



On Tue, 14 Nov 2000, James M wrote:
> Was just trying to find out why I can mount in 11pre1 and 11pre2 when
> Gert can't mount at all, so I removed my VFAT factory formatted zipdisk
> and put in an Ext2 formatted one.....**BOOM**

Actually i never tried to mount in my testings, just did "modprobe imm". I
did not even load sd.o, which reads the size of the medium. Output after
successfull modprobe:
kernel: imm: Version 2.04 (for Linux 2.4.0)
kernel: imm_connect 1
kernel: imm: Found device at ID 6, Attempting to use EPP 32 bit
kernel: imm: Found device at ID 6, Attempting to use PS/2
kernel: imm: Communication established at 0x378 with ID 6 using PS/2
kernel: device_check 0
kernel: scsi1 : Iomega VPI2 (imm) interface
kernel: scsi : 2 hosts.
kernel: Vendor: IOMEGA Model: ZIP 250 Rev: J.45
kernel: Type: Direct-Access ANSI SCSI revision: 02

Even without a disk this works (if parport_pc is preloaded).


Anyway the disk in the drive was a 250MB vfat formatted one. But OTOH, the
oops trace points to ext2.

For completeness: With the disk "modprobe sd" gives

kernel: Detected scsi removable disk sda at scsi1, channel 0, id 6, lun 0
kernel: SCSI device sda: hdwr sector= 512 bytes. Sectors= 489532 [239 MB] [0.2 GB]
kernel: sda: Write Protect is off
kernel: sda: sda4

Refering to my last message - so far i didn't check, if an ext2 formated
disk works with test6. But "modprobe imm" worked.



2000-11-15 00:27:00

by James M.

[permalink] [raw]
Subject: Re: Parport/IMM/Zip Oops Revisited -- Filesys problem? Viro pleaselook

Gert Wollny wrote:
>
> Actually i never tried to mount in my testings, just did "modprobe imm". I
> did not even load sd.o, which reads the size of the medium. Output after
> successfull modprobe:
> kernel: imm: Version 2.04 (for Linux 2.4.0)
> kernel: imm_connect 1
> kernel: imm: Found device at ID 6, Attempting to use EPP 32 bit
> kernel: imm: Found device at ID 6, Attempting to use PS/2
> kernel: imm: Communication established at 0x378 with ID 6 using PS/2
> kernel: device_check 0
> kernel: scsi1 : Iomega VPI2 (imm) interface
> kernel: scsi : 2 hosts.
> kernel: Vendor: IOMEGA Model: ZIP 250 Rev: J.45
> kernel: Type: Direct-Access ANSI SCSI revision: 02
>
> Even without a disk this works (if parport_pc is preloaded).
>
> Anyway the disk in the drive was a 250MB vfat formatted one. But OTOH, the
> oops trace points to ext2.
>
> For completeness: With the disk "modprobe sd" gives

As you say, for completeness:

SCSI subsystem driver Revision: 1.00
parport0: PC-style at 0x378 [PCSPP]
parport0: irq 7 detected
imm: Version 2.04 (for Linux 2.4.0)
imm: Found device at ID 6, Attempting to use EPP 32 bit
imm: Found device at ID 6, Attempting to use SPP
imm: Communication established at 0x378 with ID 6 using SPP
scsi0 : Iomega VPI2 (imm) interface
Vendor: IOMEGA Model: ZIP 100 Rev: P.05
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
sda: Write Protect is off
sda: sda4

As I noted in a previous posting to the list my Communication type is
misdetected as SPP when it really is EPP. The 101 MB size looks fishy
also as it usually reads 96 MB IIRC.

>
> kernel: Detected scsi removable disk sda at scsi1, channel 0, id 6, lun 0
> kernel: SCSI device sda: hdwr sector= 512 bytes. Sectors= 489532 [239 MB] [0.2 GB]
> kernel: sda: Write Protect is off
> kernel: sda: sda4
>

2000-11-15 02:52:28

by James M.

[permalink] [raw]
Subject: Re: Parport/IMM/Zip Oops Revisited -- Winbond

Gert Wollny wrote:
>
> On Tue, 14 Nov 2000, James M wrote:
> > Was just trying to find out why I can mount in 11pre1 and 11pre2 when
> > Gert can't mount at all, so I removed my VFAT factory formatted zipdisk
> > and put in an Ext2 formatted one.....**BOOM**
>

The configure help for the Winbond SuperIO states:

"Saying Y here enables some probes for Super-IO chipsets in order to
find out things like base addresses, IRQ lines and DMA channels. It
is safe to say N."

Enabling this allows me to mount both VFAT and EXT2 in 11pre3, it
appears it should no longer be marked "Experimental" or "Safe to say No"
in the case of Zipdrives at least.

Dunno what time it is over there but could you give this a try when you
get a chance? My port is still misdetected but at least I didn't have to
fsck this time...;=)

2000-11-15 11:40:27

by Gert Wollny

[permalink] [raw]
Subject: Re: Parport/IMM/Zip Oops Revisited -- Winbond

James M wrote:
>
> Dunno what time it is over there
Just add seven hours to your time.

> but could you give this a try when you get a chance?
yeah, and the other thing i will do, is to go through the test7-pre
series, to see where the bug came to light.

2000-11-16 11:53:20

by Gert Wollny

[permalink] [raw]
Subject: Re: Parport/IMM/Zip LOCKUP Oops Revisited [patch included]

>From - Thu Nov 16 12:10:09 2000
>From wollny Thu Nov 16 11:32:26 2000
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Date: Thu, 16 Nov 2000 11:40:28 +0100 (CET)
From: Gert Wollny <[email protected]>
To: [email protected]
Subject: my patch
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Attachments:
imm-lockup.patch (4.20 kB)